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49 vulnerabilities found for istio by istio
VAR-202310-0175
Vulnerability from variot - Updated: 2025-12-22 22:37The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023. The updated image includes new features and bug fixes.
It contains the following bug fixes and changes:
-
Previously, Red Hat OpenShift Container Platform customers using the downloaded manifest bundle with automatic upgrades enabled found that Sensor did not automatically upgrade, and failed with a
PRE_FLIGHT_CHECKS_FAILEDerror. This issue has been fixed. (ROX-19955) -
RHACS 4.2.2 includes a new default policy called \"Rapid Reset: Denial of Service Vulnerability in HTTP/2 Protocol\". This policy alerts on deployments with images containing components that are susceptible to a Denial of Service (DoS) vulnerability for HTTP/2 servers, based on CVE-2023-44487 and CVE-2023-39325. This policy applies to the build or deploy life cycle stage.
Description:
This asynchronous patch is a security update zip for the JBoss EAP XP 4.0.0 runtime distribution for use with EAP 7.4.13. ========================================================================== Ubuntu Security Notice USN-6438-2 October 25, 2023
.Net regressions
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 23.10
Summary:
An incomplete fix was discovered in .Net.
Software Description: - dotnet6: dotNET CLI tools and runtime - dotnet7: dotNET CLI tools and runtime
Details:
USN-6438-1 fixed vulnerabilities in .Net. It was discovered that the fix for CVE-2023-36799 was incomplete. This update fixes the problem.
Original advisory details:
Kevin Jones discovered that .NET did not properly process certain X.509 certificates. An attacker could possibly use this issue to cause a denial of service. (CVE-2023-36799)
It was discovered that the .NET Kestrel web server did not properly handle HTTP/2 requests. A remote attacker could possibly use this issue to cause a denial of service. (CVE-2023-44487)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 23.10: aspnetcore-runtime-6.0 6.0.124-0ubuntu1~23.10.1 aspnetcore-runtime-7.0 7.0.113-0ubuntu1~23.10.1 dotnet-host 6.0.124-0ubuntu1~23.10.1 dotnet-host-7.0 7.0.113-0ubuntu1~23.10.1 dotnet-hostfxr-6.0 6.0.124-0ubuntu1~23.10.1 dotnet-hostfxr-7.0 7.0.113-0ubuntu1~23.10.1 dotnet-runtime-6.0 6.0.124-0ubuntu1~23.10.1 dotnet-runtime-7.0 7.0.113-0ubuntu1~23.10.1 dotnet-sdk-6.0 6.0.124-0ubuntu1~23.10.1 dotnet-sdk-7.0 7.0.113-0ubuntu1~23.10.1 dotnet6 6.0.124-0ubuntu1~23.10.1 dotnet7 7.0.113-0ubuntu1~23.10.1
In general, a standard system update will make all the necessary changes.
The following data is constructed from data provided by Red Hat's json file at:
https://access.redhat.com/security/data/csaf/v2/advisories/2023/rhsa-2023_5896.json
Red Hat officially shut down their mailing list notifications October 10, 2023. Due to this, Packet Storm has recreated the below data as a reference point to raise awareness. It must be noted that due to an inability to easily track revision updates without crawling Red Hat's archive, these advisories are single notifications and we strongly suggest that you visit the Red Hat provided links to ensure you have the latest information available if the subject matter listed pertains to your environment.
- Packet Storm Staff
==================================================================== Red Hat Security Advisory
Synopsis: Important: OpenShift Container Platform 4.12.40 bug fix and security update Advisory ID: RHSA-2023:5896-01 Product: Red Hat OpenShift Enterprise Advisory URL: https://access.redhat.com/errata/RHSA-2023:5896 Issue date: 2023-10-25 Revision: 01 CVE Names: CVE-2023-44487 ====================================================================
Summary:
Red Hat OpenShift Container Platform release 4.12.40 is now available with updates to packages and images that fix several bugs and add enhancements.
This release includes a security update for Red Hat OpenShift Container Platform 4.12.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Description:
Red Hat OpenShift Container Platform is Red Hat's cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments.
This advisory contains the container images for Red Hat OpenShift Container Platform 4.12.40. See the following advisory for the RPM packages for this release:
https://access.redhat.com/errata/RHBA-2023:5898
Space precludes documenting all of the container images in this advisory. See the following Release Notes documentation, which will be updated shortly for this release, for details about these changes:
https://docs.openshift.com/container-platform/4.12/release_notes/ocp-4-12-release-notes.html
Security Fix(es):
- HTTP/2: Multiple HTTP/2 enabled web servers are vulnerable to a DDoS attack (Rapid Reset Attack) (CVE-2023-44487)
A Red Hat Security Bulletin which addresses further details about the Rapid Reset flaw is available in the References section.
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
All OpenShift Container Platform 4.12 users are advised to upgrade to these updated packages and images when they are available in the appropriate release channel. To check for available updates, use the OpenShift CLI (oc) or web console. Instructions for upgrading a cluster are available at https://docs.openshift.com/container-platform/4.12/updating/updating-cluster-cli.html
Solution:
https://docs.openshift.com/container-platform/4.12/release_notes/ocp-4-12-release-notes.html
CVEs:
CVE-2023-44487
References:
https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/security/vulnerabilities/RHSB-2023-003
. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512
Debian Security Advisory DSA-5522-1 security@debian.org https://www.debian.org/security/ Markus Koschany October 10, 2023 https://www.debian.org/security/faq
Package : tomcat9 CVE ID : CVE-2023-24998 CVE-2023-41080 CVE-2023-42795 CVE-2023-44487 CVE-2023-45648
Several security vulnerabilities have been discovered in the Tomcat servlet and JSP engine.
CVE-2023-24998
Denial of service. Tomcat uses a packaged renamed copy of Apache Commons
FileUpload to provide the file upload functionality defined in the Jakarta
Servlet specification. Apache Tomcat was, therefore, also vulnerable to the
Commons FileUpload vulnerability CVE-2023-24998 as there was no limit to
the number of request parts processed. This resulted in the possibility of
an attacker triggering a DoS with a malicious upload or series of uploads.
CVE-2023-41080
Open redirect. If the ROOT (default) web application is configured to use
FORM authentication then it is possible that a specially crafted URL could
be used to trigger a redirect to an URL of the attackers choice.
CVE-2023-42795
Information Disclosure. When recycling various internal objects, including
the request and the response, prior to re-use by the next request/response,
an error could cause Tomcat to skip some parts of the recycling process
leading to information leaking from the current request/response to the
next.
CVE-2023-44487
DoS caused by HTTP/2 frame overhead (Rapid Reset Attack)
CVE-2023-45648
Request smuggling. Tomcat did not correctly parse HTTP trailer headers. A
specially crafted, invalid trailer header could cause Tomcat to treat a
single request as multiple requests leading to the possibility of request
smuggling when behind a reverse proxy.
For the oldstable distribution (bullseye), these problems have been fixed in version 9.0.43-2~deb11u7.
We recommend that you upgrade your tomcat9 packages.
For the detailed security status of tomcat9 please refer to its security tracker page at: https://security-tracker.debian.org/tracker/tomcat9
Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/
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Description:
Varnish Cache is a high-performance HTTP accelerator. It stores web pages in memory so web servers don't have to create the same web page over and over again, giving the website a significant speed up.
Description:
Node.js is a software development platform for building fast and scalable network applications in the JavaScript programming language
Show details on source website{
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"data": "The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023. The updated image includes new features and bug fixes. \n\nIt contains the following bug fixes and changes:\n\n* Previously, Red Hat OpenShift Container Platform customers using the downloaded manifest bundle with automatic upgrades enabled found that Sensor did not automatically upgrade, and failed with a `PRE_FLIGHT_CHECKS_FAILED` error. This issue has been fixed. (ROX-19955)\n\n* RHACS 4.2.2 includes a new default policy called \\\"Rapid Reset: Denial of\nService Vulnerability in HTTP/2 Protocol\\\". This policy alerts on\ndeployments with images containing components that are susceptible to a\nDenial of Service (DoS) vulnerability for HTTP/2 servers, based on\nCVE-2023-44487 and CVE-2023-39325. This policy applies to the build or\ndeploy life cycle stage. \n\n\n\n\nDescription:\n\nThis asynchronous patch is a security update zip for the JBoss EAP XP 4.0.0 runtime distribution for use with EAP 7.4.13. ==========================================================================\nUbuntu Security Notice USN-6438-2\nOctober 25, 2023\n\n.Net regressions\n==========================================================================\n\nA security issue affects these releases of Ubuntu and its derivatives:\n\n- Ubuntu 23.10\n\nSummary:\n\nAn incomplete fix was discovered in .Net. \n\nSoftware Description:\n- dotnet6: dotNET CLI tools and runtime\n- dotnet7: dotNET CLI tools and runtime\n\nDetails:\n\nUSN-6438-1 fixed vulnerabilities in .Net. It was discovered that the fix\nfor [CVE-2023-36799](https://ubuntu.com/security/CVE-2023-36799) was incomplete. This update fixes the problem. \n\nOriginal advisory details:\n\n Kevin Jones discovered that .NET did not properly process certain\n X.509 certificates. An attacker could possibly use this issue to\n cause a denial of service. (CVE-2023-36799)\n \n It was discovered that the .NET Kestrel web server did not properly\n handle HTTP/2 requests. A remote attacker could possibly use this\n issue to cause a denial of service. (CVE-2023-44487)\n\nUpdate instructions:\n\nThe problem can be corrected by updating your system to the following\npackage versions:\n\nUbuntu 23.10:\n aspnetcore-runtime-6.0 6.0.124-0ubuntu1~23.10.1\n aspnetcore-runtime-7.0 7.0.113-0ubuntu1~23.10.1\n dotnet-host 6.0.124-0ubuntu1~23.10.1\n dotnet-host-7.0 7.0.113-0ubuntu1~23.10.1\n dotnet-hostfxr-6.0 6.0.124-0ubuntu1~23.10.1\n dotnet-hostfxr-7.0 7.0.113-0ubuntu1~23.10.1\n dotnet-runtime-6.0 6.0.124-0ubuntu1~23.10.1\n dotnet-runtime-7.0 7.0.113-0ubuntu1~23.10.1\n dotnet-sdk-6.0 6.0.124-0ubuntu1~23.10.1\n dotnet-sdk-7.0 7.0.113-0ubuntu1~23.10.1\n dotnet6 6.0.124-0ubuntu1~23.10.1\n dotnet7 7.0.113-0ubuntu1~23.10.1\n\nIn general, a standard system update will make all the necessary changes. \n\nThe following data is constructed from data provided by Red Hat\u0027s json file at:\n\nhttps://access.redhat.com/security/data/csaf/v2/advisories/2023/rhsa-2023_5896.json\n\nRed Hat officially shut down their mailing list notifications October 10, 2023. Due to this, Packet Storm has recreated the below data as a reference point to raise awareness. It must be noted that due to an inability to easily track revision updates without crawling Red Hat\u0027s archive, these advisories are single notifications and we strongly suggest that you visit the Red Hat provided links to ensure you have the latest information available if the subject matter listed pertains to your environment. \n\n- Packet Storm Staff\n\n\n\n\n====================================================================\nRed Hat Security Advisory\n\nSynopsis: Important: OpenShift Container Platform 4.12.40 bug fix and security update\nAdvisory ID: RHSA-2023:5896-01\nProduct: Red Hat OpenShift Enterprise\nAdvisory URL: https://access.redhat.com/errata/RHSA-2023:5896\nIssue date: 2023-10-25\nRevision: 01\nCVE Names: CVE-2023-44487\n====================================================================\n\nSummary: \n\nRed Hat OpenShift Container Platform release 4.12.40 is now available with updates to packages and images that fix several bugs and add enhancements. \n\nThis release includes a security update for Red Hat OpenShift Container Platform 4.12. \n\nRed Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. \n\n\n\n\nDescription:\n\nRed Hat OpenShift Container Platform is Red Hat\u0027s cloud computing Kubernetes application platform solution designed for on-premise or private cloud deployments. \n\nThis advisory contains the container images for Red Hat OpenShift Container Platform 4.12.40. See the following advisory for the RPM packages for this release:\n\nhttps://access.redhat.com/errata/RHBA-2023:5898\n\nSpace precludes documenting all of the container images in this advisory. See the following Release Notes documentation, which will be updated shortly for this release, for details about these changes:\n\nhttps://docs.openshift.com/container-platform/4.12/release_notes/ocp-4-12-release-notes.html\n\nSecurity Fix(es):\n\n* HTTP/2: Multiple HTTP/2 enabled web servers are vulnerable to a DDoS attack (Rapid Reset Attack) (CVE-2023-44487)\n\nA Red Hat Security Bulletin which addresses further details about the Rapid Reset flaw is available in the References section. \n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. \n\nAll OpenShift Container Platform 4.12 users are advised to upgrade to these updated packages and images when they are available in the appropriate release channel. To check for available updates, use the OpenShift CLI (oc) or web console. Instructions for upgrading a cluster are available at https://docs.openshift.com/container-platform/4.12/updating/updating-cluster-cli.html\n\n\nSolution:\n\nhttps://docs.openshift.com/container-platform/4.12/release_notes/ocp-4-12-release-notes.html\n\n\n\nCVEs:\n\nCVE-2023-44487\n\nReferences:\n\nhttps://access.redhat.com/security/updates/classification/#important\nhttps://access.redhat.com/security/vulnerabilities/RHSB-2023-003\n\n. -----BEGIN PGP SIGNED MESSAGE-----\nHash: SHA512\n\n- -------------------------------------------------------------------------\nDebian Security Advisory DSA-5522-1 security@debian.org\nhttps://www.debian.org/security/ Markus Koschany\nOctober 10, 2023 https://www.debian.org/security/faq\n- -------------------------------------------------------------------------\n\nPackage : tomcat9\nCVE ID : CVE-2023-24998 CVE-2023-41080 CVE-2023-42795 CVE-2023-44487\n CVE-2023-45648\n\nSeveral security vulnerabilities have been discovered in the Tomcat\nservlet and JSP engine. \n\nCVE-2023-24998\n\n Denial of service. Tomcat uses a packaged renamed copy of Apache Commons\n FileUpload to provide the file upload functionality defined in the Jakarta\n Servlet specification. Apache Tomcat was, therefore, also vulnerable to the\n Commons FileUpload vulnerability CVE-2023-24998 as there was no limit to\n the number of request parts processed. This resulted in the possibility of\n an attacker triggering a DoS with a malicious upload or series of uploads. \n\nCVE-2023-41080\n\n Open redirect. If the ROOT (default) web application is configured to use\n FORM authentication then it is possible that a specially crafted URL could\n be used to trigger a redirect to an URL of the attackers choice. \n\nCVE-2023-42795\n\n Information Disclosure. When recycling various internal objects, including\n the request and the response, prior to re-use by the next request/response,\n an error could cause Tomcat to skip some parts of the recycling process\n leading to information leaking from the current request/response to the\n next. \n\nCVE-2023-44487\n\n DoS caused by HTTP/2 frame overhead (Rapid Reset Attack)\n\nCVE-2023-45648\n\n Request smuggling. Tomcat did not correctly parse HTTP trailer headers. A\n specially crafted, invalid trailer header could cause Tomcat to treat a\n single request as multiple requests leading to the possibility of request\n smuggling when behind a reverse proxy. \n\nFor the oldstable distribution (bullseye), these problems have been fixed\nin version 9.0.43-2~deb11u7. \n\nWe recommend that you upgrade your tomcat9 packages. \n\nFor the detailed security status of tomcat9 please refer to\nits security tracker page at:\nhttps://security-tracker.debian.org/tracker/tomcat9\n\nFurther information about Debian Security Advisories, how to apply\nthese updates to your system and frequently asked questions can be\nfound at: https://www.debian.org/security/\n\nMailing list: debian-security-announce@lists.debian.org\n-----BEGIN PGP SIGNATURE-----\n\niQKTBAEBCgB9FiEErPPQiO8y7e9qGoNf2a0UuVE7UeQFAmUlyBRfFIAAAAAALgAo\naXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldEFD\nRjNEMDg4RUYzMkVERUY2QTFBODM1RkQ5QUQxNEI5NTEzQjUxRTQACgkQ2a0UuVE7\nUeRBnhAAk1o0EDLnX1zaS0Xnz9jybhd9XdXat1HwZXvV3XFRGVXu5+r2bKH+KQjU\n0GJ6koP3KDt10DrI8DzOq+9Msu0/TbPYAZKDHPjPYfcUqXRmwRrvTXtq5cbR5v3+\nJxgJhiqjQYb1DYiDLC5iU+6aryrZg2ma1i81lG5v8N1TDfaCHzbZiMpyeYEABkd7\neKX3tzngoK9UaIgYVBxrjnM9bPRWnRFJRBMu/hs4VS6gxqzAaZT72Tcaf0Vf3t1s\nEs5IMgrhBC0Q2Amlm3N5z37p0nlhnJdNC3dAHetRCy92g9/KsjB/1BZfYY7rM8wV\nWwvB5WwQ0T4eRqKmc8yY86sUdfXkhPqz1oFDbnNgxtBjMm2z/of9pNEm+2NCpv9P\n3MpCIKsEWiGH8+uleGuFhAHoWeUYjDNJjH1di6+PYZoBaEJ8eiXct/THBt/0nvFR\nNh6AFDqi1Hi5/GdPK71eFRDsXOwgSuRg1ZRJtJP1W/dYEiczP89l0CM04PwxEAn2\ndbE2ZCUQmIzQdng4OAHt+ze+QDini4HtoRJnQHq4P/QUIEQAE9C0hOIMMnrtpqIY\nA77Qa1bBVqDgLlhvSmpSrVigmfyXSpmtfc9G0KXcq5IAvr75jZ0PNuIk/VTyklYj\ne3g3nA1rbB1jlx6cvPqWBFItXW8800mJ0CXHb8EN8jKdB5BnooY=\n=6KYM\n-----END PGP SIGNATURE-----\n. \n\n\n\n\nDescription:\n\nVarnish Cache is a high-performance HTTP accelerator. 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CVE-2023-44487 (GCVE-0-2023-44487)
Vulnerability from nvd – Published: 2023-10-10 00:00 – Updated: 2025-11-04 21:08
VLAI?
Summary
The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.
Severity ?
7.5 (High)
CWE
- n/a
Assigner
References
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"url": "https://www.darkreading.com/cloud/internet-wide-zero-day-bug-fuels-largest-ever-ddos-event"
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"url": "https://ubuntu.com/security/CVE-2023-44487"
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{
"url": "https://community.traefik.io/t/is-traefik-vulnerable-to-cve-2023-44487/20125"
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{
"url": "https://github.com/advisories/GHSA-qppj-fm5r-hxr3"
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{
"url": "https://github.com/apache/httpd-site/pull/10"
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{
"url": "https://github.com/projectcontour/contour/pull/5826"
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{
"url": "https://github.com/linkerd/website/pull/1695/commits/4b9c6836471bc8270ab48aae6fd2181bc73fd632"
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{
"url": "https://github.com/line/armeria/pull/5232"
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{
"url": "https://blog.litespeedtech.com/2023/10/11/rapid-reset-http-2-vulnerablilty/"
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{
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{
"url": "https://github.com/akka/akka-http/issues/4323"
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{
"url": "https://github.com/openresty/openresty/issues/930"
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{
"url": "https://github.com/apache/apisix/issues/10320"
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{
"url": "https://github.com/Azure/AKS/issues/3947"
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{
"url": "https://github.com/Kong/kong/discussions/11741"
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"url": "https://github.com/arkrwn/PoC/tree/main/CVE-2023-44487"
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{
"url": "https://www.netlify.com/blog/netlify-successfully-mitigates-cve-2023-44487/"
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"url": "https://github.com/caddyserver/caddy/releases/tag/v2.7.5"
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"url": "https://arstechnica.com/security/2023/10/how-ddosers-used-the-http-2-protocol-to-deliver-attacks-of-unprecedented-size/"
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{
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"assignerShortName": "mitre",
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"datePublished": "2023-10-10T00:00:00.000Z",
"dateReserved": "2023-09-29T00:00:00.000Z",
"dateUpdated": "2025-11-04T21:08:27.383Z",
"state": "PUBLISHED"
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CVE-2022-39388 (GCVE-0-2022-39388)
Vulnerability from nvd – Published: 2022-11-10 00:00 – Updated: 2025-04-23 16:39
VLAI?
Title
Istio may allow identity impersonation if user has localhost access
Summary
Istio is an open platform to connect, manage, and secure microservices. In versions on the 1.15.x branch prior to 1.15.3, a user can impersonate any workload identity within the service mesh if they have localhost access to the Istiod control plane. Version 1.15.3 contains a patch for this issue. There are no known workarounds.
Severity ?
7.6 (High)
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
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"timestamp": "2025-04-23T13:55:00.507730Z",
"version": "2.0.3"
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"attackVector": "ADJACENT_NETWORK",
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"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "LOW",
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CVE-2022-39278 (GCVE-0-2022-39278)
Vulnerability from nvd – Published: 2022-10-13 00:00 – Updated: 2025-04-23 16:50
VLAI?
Title
Istio vulnerable to denial of service attack due to Golang Regex Library
Summary
Istio is an open platform-independent service mesh that provides traffic management, policy enforcement, and telemetry collection. Prior to versions 1.15.2, 1.14.5, and 1.13.9, the Istio control plane, istiod, is vulnerable to a request processing error, allowing a malicious attacker that sends a specially crafted or oversized message which results in the control plane crashing when the Kubernetes validating or mutating webhook service is exposed publicly. This endpoint is served over TLS port 15017, but does not require any authentication from the attacker. For simple installations, Istiod is typically only reachable from within the cluster, limiting the blast radius. However, for some deployments, especially external istiod topologies, this port is exposed over the public internet. Versions 1.15.2, 1.14.5, and 1.13.9 contain patches for this issue. There are no effective workarounds, beyond upgrading. This bug is due to an error in `regexp.Compile` in Go.
Severity ?
7.5 (High)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
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CVE-2022-31045 (GCVE-0-2022-31045)
Vulnerability from nvd – Published: 2022-06-09 20:55 – Updated: 2025-04-23 18:17
VLAI?
Title
Ill-formed headers may lead to unexpected behavior in Istio
Summary
Istio is an open platform to connect, manage, and secure microservices. In affected versions ill-formed headers sent to Envoy in certain configurations can lead to unexpected memory access resulting in undefined behavior or crashing. Users are most likely at risk if they have an Istio ingress Gateway exposed to external traffic. This vulnerability has been resolved in versions 1.12.8, 1.13.5, and 1.14.1. Users are advised to upgrade. There are no known workarounds for this issue.
Severity ?
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
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CVE-2022-24726 (GCVE-0-2022-24726)
Vulnerability from nvd – Published: 2022-03-10 20:45 – Updated: 2025-04-23 18:55
VLAI?
Title
Unauthenticated control plane denial of service attack in Istio
Summary
Istio is an open platform to connect, manage, and secure microservices. In affected versions the Istio control plane, istiod, is vulnerable to a request processing error, allowing a malicious attacker that sends a specially crafted message which results in the control plane crashing when the validating webhook for a cluster is exposed publicly. This endpoint is served over TLS port 15017, but does not require any authentication from the attacker. For simple installations, Istiod is typically only reachable from within the cluster, limiting the blast radius. However, for some deployments, especially [external istiod](https://istio.io/latest/docs/setup/install/external-controlplane/) topologies, this port is exposed over the public internet. This issue has been patched in versions 1.13.2, 1.12.5 and 1.11.8. Users are advised to upgrade. Users unable to upgrade should disable access to a validating webhook that is exposed to the public internet or restrict the set of IP addresses that can query it to a set of known, trusted entities.
Severity ?
7.5 (High)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
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Impacted products
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CVE-2022-23635 (GCVE-0-2022-23635)
Vulnerability from nvd – Published: 2022-02-22 22:00 – Updated: 2025-04-23 19:02
VLAI?
Title
Unauthenticated control plane denial of service attack in Istio
Summary
Istio is an open platform to connect, manage, and secure microservices. In affected versions the Istio control plane, `istiod`, is vulnerable to a request processing error, allowing a malicious attacker that sends a specially crafted message which results in the control plane crashing. This endpoint is served over TLS port 15012, but does not require any authentication from the attacker. For simple installations, Istiod is typically only reachable from within the cluster, limiting the blast radius. However, for some deployments, especially [multicluster](https://istio.io/latest/docs/setup/install/multicluster/primary-remote/) topologies, this port is exposed over the public internet. There are no effective workarounds, beyond upgrading. Limiting network access to Istiod to the minimal set of clients can help lessen the scope of the vulnerability to some extent.
Severity ?
7.5 (High)
CWE
- CWE-287 - Improper Authentication
Assigner
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| URL | Tags | ||||||||||
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CVE-2022-21701 (GCVE-0-2022-21701)
Vulnerability from nvd – Published: 2022-01-19 21:40 – Updated: 2025-04-23 19:09
VLAI?
Title
Privileged Escalation in Istio
Summary
Istio is an open platform to connect, manage, and secure microservices. In versions 1.12.0 and 1.12.1 Istio is vulnerable to a privilege escalation attack. Users who have `CREATE` permission for `gateways.gateway.networking.k8s.io` objects can escalate this privilege to create other resources that they may not have access to, such as `Pod`. This vulnerability impacts only an Alpha level feature, the Kubernetes Gateway API. This is not the same as the Istio Gateway type (gateways.networking.istio.io), which is not vulnerable. Users are advised to upgrade to resolve this issue. Users unable to upgrade should implement any of the following which will prevent this vulnerability: Remove the gateways.gateway.networking.k8s.io CustomResourceDefinition, set PILOT_ENABLE_GATEWAY_API_DEPLOYMENT_CONTROLLER=true environment variable in Istiod, or remove CREATE permissions for gateways.gateway.networking.k8s.io objects from untrusted users.
Severity ?
5 (Medium)
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
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CVE-2022-21679 (GCVE-0-2022-21679)
Vulnerability from nvd – Published: 2022-01-19 21:35 – Updated: 2025-04-23 19:10
VLAI?
Title
Authorization Policy bypass in Istio
Summary
Istio is an open platform to connect, manage, and secure microservices. In Istio 1.12.0 and 1.12.1 The authorization policy with hosts and notHosts might be accidentally bypassed for ALLOW action or rejected unexpectedly for DENY action during the upgrade from 1.11 to 1.12.0/1.12.1. Istio 1.12 supports the hosts and notHosts fields in authorization policy with a new Envoy API shipped with the 1.12 data plane. A bug in the 1.12.0 and 1.12.1 incorrectly uses the new Envoy API with the 1.11 data plane. This will cause the hosts and notHosts fields to be always matched regardless of the actual value of the host header when mixing 1.12.0/1.12.1 control plane and 1.11 data plane. Users are advised to upgrade or to not mix the 1.12.0/1.12.1 control plane with 1.11 data plane if using hosts or notHosts field in authorization policy.
Severity ?
6.8 (Medium)
CWE
- CWE-670 - Always-Incorrect Control Flow Implementation
Assigner
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CVE-2021-39156 (GCVE-0-2021-39156)
Vulnerability from nvd – Published: 2021-08-24 22:30 – Updated: 2024-08-04 01:58
VLAI?
Title
Fragments in Path May Lead to Authorization Policy Bypass
Summary
Istio is an open source platform for providing a uniform way to integrate microservices, manage traffic flow across microservices, enforce policies and aggregate telemetry data. Istio 1.11.0, 1.10.3 and below, and 1.9.7 and below contain a remotely exploitable vulnerability where an HTTP request with `#fragment` in the path may bypass Istio’s URI path based authorization policies. Patches are available in Istio 1.11.1, Istio 1.10.4 and Istio 1.9.8. As a work around a Lua filter may be written to normalize the path.
Severity ?
8.1 (High)
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
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CVE-2021-39155 (GCVE-0-2021-39155)
Vulnerability from nvd – Published: 2021-08-24 22:25 – Updated: 2024-08-04 01:58
VLAI?
Title
Authorization Policy Bypass Due to Case Insensitive Host Comparison
Summary
Istio is an open source platform for providing a uniform way to integrate microservices, manage traffic flow across microservices, enforce policies and aggregate telemetry data. According to [RFC 4343](https://datatracker.ietf.org/doc/html/rfc4343), Istio authorization policy should compare the hostname in the HTTP Host header in a case insensitive way, but currently the comparison is case sensitive. The proxy will route the request hostname in a case-insensitive way which means the authorization policy could be bypassed. As an example, the user may have an authorization policy that rejects request with hostname "httpbin.foo" for some source IPs, but the attacker can bypass this by sending the request with hostname "Httpbin.Foo". Patches are available in Istio 1.11.1, Istio 1.10.4 and Istio 1.9.8. As a work around a Lua filter may be written to normalize Host header before the authorization check. This is similar to the Path normalization presented in the [Security Best Practices](https://istio.io/latest/docs/ops/best-practices/security/#case-normalization) guide.
Severity ?
8.3 (High)
CWE
- CWE-178 - Improper Handling of Case Sensitivity
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
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CVE-2021-34824 (GCVE-0-2021-34824)
Vulnerability from nvd – Published: 2021-06-29 13:30 – Updated: 2024-08-04 00:26
VLAI?
Summary
Istio (1.8.x, 1.9.0-1.9.5 and 1.10.0-1.10.1) contains a remotely exploitable vulnerability where credentials specified in the Gateway and DestinationRule credentialName field can be accessed from different namespaces.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
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CVE-2021-31921 (GCVE-0-2021-31921)
Vulnerability from nvd – Published: 2021-06-02 15:36 – Updated: 2024-08-03 23:10
VLAI?
Summary
Istio before 1.8.6 and 1.9.x before 1.9.5 contains a remotely exploitable vulnerability where an external client can access unexpected services in the cluster, bypassing authorization checks, when a gateway is configured with AUTO_PASSTHROUGH routing configuration.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
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CVE-2021-31920 (GCVE-0-2021-31920)
Vulnerability from nvd – Published: 2021-05-27 04:03 – Updated: 2024-08-03 23:10
VLAI?
Summary
Istio before 1.8.6 and 1.9.x before 1.9.5 has a remotely exploitable vulnerability where an HTTP request path with multiple slashes or escaped slash characters (%2F or %5C) could potentially bypass an Istio authorization policy when path based authorization rules are used.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
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CVE-2019-25014 (GCVE-0-2019-25014)
Vulnerability from nvd – Published: 2021-01-29 06:00 – Updated: 2024-08-05 03:00
VLAI?
Summary
A NULL pointer dereference was found in pkg/proxy/envoy/v2/debug.go getResourceVersion in Istio pilot before 1.5.0-alpha.0. If a particular HTTP GET request is made to the pilot API endpoint, it is possible to cause the Go runtime to panic (resulting in a denial of service to the istio-pilot application).
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
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CVE-2020-16844 (GCVE-0-2020-16844)
Vulnerability from nvd – Published: 2020-10-01 16:32 – Updated: 2024-08-04 13:45
VLAI?
Summary
In Istio 1.5.0 though 1.5.8 and Istio 1.6.0 through 1.6.7, when users specify an AuthorizationPolicy resource with DENY actions using wildcard suffixes (e.g. *-some-suffix) for source principals or namespace fields, callers will never be denied access, bypassing the intended policy.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
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CVE-2023-44487 (GCVE-0-2023-44487)
Vulnerability from cvelistv5 – Published: 2023-10-10 00:00 – Updated: 2025-11-04 21:08
VLAI?
Summary
The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.
Severity ?
7.5 (High)
CWE
- n/a
Assigner
References
| URL | Tags | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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CVE-2022-39388 (GCVE-0-2022-39388)
Vulnerability from cvelistv5 – Published: 2022-11-10 00:00 – Updated: 2025-04-23 16:39
VLAI?
Title
Istio may allow identity impersonation if user has localhost access
Summary
Istio is an open platform to connect, manage, and secure microservices. In versions on the 1.15.x branch prior to 1.15.3, a user can impersonate any workload identity within the service mesh if they have localhost access to the Istiod control plane. Version 1.15.3 contains a patch for this issue. There are no known workarounds.
Severity ?
7.6 (High)
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
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CVE-2022-39278 (GCVE-0-2022-39278)
Vulnerability from cvelistv5 – Published: 2022-10-13 00:00 – Updated: 2025-04-23 16:50
VLAI?
Title
Istio vulnerable to denial of service attack due to Golang Regex Library
Summary
Istio is an open platform-independent service mesh that provides traffic management, policy enforcement, and telemetry collection. Prior to versions 1.15.2, 1.14.5, and 1.13.9, the Istio control plane, istiod, is vulnerable to a request processing error, allowing a malicious attacker that sends a specially crafted or oversized message which results in the control plane crashing when the Kubernetes validating or mutating webhook service is exposed publicly. This endpoint is served over TLS port 15017, but does not require any authentication from the attacker. For simple installations, Istiod is typically only reachable from within the cluster, limiting the blast radius. However, for some deployments, especially external istiod topologies, this port is exposed over the public internet. Versions 1.15.2, 1.14.5, and 1.13.9 contain patches for this issue. There are no effective workarounds, beyond upgrading. This bug is due to an error in `regexp.Compile` in Go.
Severity ?
7.5 (High)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
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CVE-2022-31045 (GCVE-0-2022-31045)
Vulnerability from cvelistv5 – Published: 2022-06-09 20:55 – Updated: 2025-04-23 18:17
VLAI?
Title
Ill-formed headers may lead to unexpected behavior in Istio
Summary
Istio is an open platform to connect, manage, and secure microservices. In affected versions ill-formed headers sent to Envoy in certain configurations can lead to unexpected memory access resulting in undefined behavior or crashing. Users are most likely at risk if they have an Istio ingress Gateway exposed to external traffic. This vulnerability has been resolved in versions 1.12.8, 1.13.5, and 1.14.1. Users are advised to upgrade. There are no known workarounds for this issue.
Severity ?
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
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CVE-2022-24726 (GCVE-0-2022-24726)
Vulnerability from cvelistv5 – Published: 2022-03-10 20:45 – Updated: 2025-04-23 18:55
VLAI?
Title
Unauthenticated control plane denial of service attack in Istio
Summary
Istio is an open platform to connect, manage, and secure microservices. In affected versions the Istio control plane, istiod, is vulnerable to a request processing error, allowing a malicious attacker that sends a specially crafted message which results in the control plane crashing when the validating webhook for a cluster is exposed publicly. This endpoint is served over TLS port 15017, but does not require any authentication from the attacker. For simple installations, Istiod is typically only reachable from within the cluster, limiting the blast radius. However, for some deployments, especially [external istiod](https://istio.io/latest/docs/setup/install/external-controlplane/) topologies, this port is exposed over the public internet. This issue has been patched in versions 1.13.2, 1.12.5 and 1.11.8. Users are advised to upgrade. Users unable to upgrade should disable access to a validating webhook that is exposed to the public internet or restrict the set of IP addresses that can query it to a set of known, trusted entities.
Severity ?
7.5 (High)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
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Impacted products
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CVE-2022-23635 (GCVE-0-2022-23635)
Vulnerability from cvelistv5 – Published: 2022-02-22 22:00 – Updated: 2025-04-23 19:02
VLAI?
Title
Unauthenticated control plane denial of service attack in Istio
Summary
Istio is an open platform to connect, manage, and secure microservices. In affected versions the Istio control plane, `istiod`, is vulnerable to a request processing error, allowing a malicious attacker that sends a specially crafted message which results in the control plane crashing. This endpoint is served over TLS port 15012, but does not require any authentication from the attacker. For simple installations, Istiod is typically only reachable from within the cluster, limiting the blast radius. However, for some deployments, especially [multicluster](https://istio.io/latest/docs/setup/install/multicluster/primary-remote/) topologies, this port is exposed over the public internet. There are no effective workarounds, beyond upgrading. Limiting network access to Istiod to the minimal set of clients can help lessen the scope of the vulnerability to some extent.
Severity ?
7.5 (High)
CWE
- CWE-287 - Improper Authentication
Assigner
References
| URL | Tags | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
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Impacted products
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CVE-2022-21701 (GCVE-0-2022-21701)
Vulnerability from cvelistv5 – Published: 2022-01-19 21:40 – Updated: 2025-04-23 19:09
VLAI?
Title
Privileged Escalation in Istio
Summary
Istio is an open platform to connect, manage, and secure microservices. In versions 1.12.0 and 1.12.1 Istio is vulnerable to a privilege escalation attack. Users who have `CREATE` permission for `gateways.gateway.networking.k8s.io` objects can escalate this privilege to create other resources that they may not have access to, such as `Pod`. This vulnerability impacts only an Alpha level feature, the Kubernetes Gateway API. This is not the same as the Istio Gateway type (gateways.networking.istio.io), which is not vulnerable. Users are advised to upgrade to resolve this issue. Users unable to upgrade should implement any of the following which will prevent this vulnerability: Remove the gateways.gateway.networking.k8s.io CustomResourceDefinition, set PILOT_ENABLE_GATEWAY_API_DEPLOYMENT_CONTROLLER=true environment variable in Istiod, or remove CREATE permissions for gateways.gateway.networking.k8s.io objects from untrusted users.
Severity ?
5 (Medium)
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
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CVE-2022-21679 (GCVE-0-2022-21679)
Vulnerability from cvelistv5 – Published: 2022-01-19 21:35 – Updated: 2025-04-23 19:10
VLAI?
Title
Authorization Policy bypass in Istio
Summary
Istio is an open platform to connect, manage, and secure microservices. In Istio 1.12.0 and 1.12.1 The authorization policy with hosts and notHosts might be accidentally bypassed for ALLOW action or rejected unexpectedly for DENY action during the upgrade from 1.11 to 1.12.0/1.12.1. Istio 1.12 supports the hosts and notHosts fields in authorization policy with a new Envoy API shipped with the 1.12 data plane. A bug in the 1.12.0 and 1.12.1 incorrectly uses the new Envoy API with the 1.11 data plane. This will cause the hosts and notHosts fields to be always matched regardless of the actual value of the host header when mixing 1.12.0/1.12.1 control plane and 1.11 data plane. Users are advised to upgrade or to not mix the 1.12.0/1.12.1 control plane with 1.11 data plane if using hosts or notHosts field in authorization policy.
Severity ?
6.8 (Medium)
CWE
- CWE-670 - Always-Incorrect Control Flow Implementation
Assigner
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CVE-2021-39156 (GCVE-0-2021-39156)
Vulnerability from cvelistv5 – Published: 2021-08-24 22:30 – Updated: 2024-08-04 01:58
VLAI?
Title
Fragments in Path May Lead to Authorization Policy Bypass
Summary
Istio is an open source platform for providing a uniform way to integrate microservices, manage traffic flow across microservices, enforce policies and aggregate telemetry data. Istio 1.11.0, 1.10.3 and below, and 1.9.7 and below contain a remotely exploitable vulnerability where an HTTP request with `#fragment` in the path may bypass Istio’s URI path based authorization policies. Patches are available in Istio 1.11.1, Istio 1.10.4 and Istio 1.9.8. As a work around a Lua filter may be written to normalize the path.
Severity ?
8.1 (High)
CWE
- CWE-863 - Incorrect Authorization
Assigner
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CVE-2021-39155 (GCVE-0-2021-39155)
Vulnerability from cvelistv5 – Published: 2021-08-24 22:25 – Updated: 2024-08-04 01:58
VLAI?
Title
Authorization Policy Bypass Due to Case Insensitive Host Comparison
Summary
Istio is an open source platform for providing a uniform way to integrate microservices, manage traffic flow across microservices, enforce policies and aggregate telemetry data. According to [RFC 4343](https://datatracker.ietf.org/doc/html/rfc4343), Istio authorization policy should compare the hostname in the HTTP Host header in a case insensitive way, but currently the comparison is case sensitive. The proxy will route the request hostname in a case-insensitive way which means the authorization policy could be bypassed. As an example, the user may have an authorization policy that rejects request with hostname "httpbin.foo" for some source IPs, but the attacker can bypass this by sending the request with hostname "Httpbin.Foo". Patches are available in Istio 1.11.1, Istio 1.10.4 and Istio 1.9.8. As a work around a Lua filter may be written to normalize Host header before the authorization check. This is similar to the Path normalization presented in the [Security Best Practices](https://istio.io/latest/docs/ops/best-practices/security/#case-normalization) guide.
Severity ?
8.3 (High)
CWE
- CWE-178 - Improper Handling of Case Sensitivity
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
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CVE-2021-34824 (GCVE-0-2021-34824)
Vulnerability from cvelistv5 – Published: 2021-06-29 13:30 – Updated: 2024-08-04 00:26
VLAI?
Summary
Istio (1.8.x, 1.9.0-1.9.5 and 1.10.0-1.10.1) contains a remotely exploitable vulnerability where credentials specified in the Gateway and DestinationRule credentialName field can be accessed from different namespaces.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
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CVE-2021-31921 (GCVE-0-2021-31921)
Vulnerability from cvelistv5 – Published: 2021-06-02 15:36 – Updated: 2024-08-03 23:10
VLAI?
Summary
Istio before 1.8.6 and 1.9.x before 1.9.5 contains a remotely exploitable vulnerability where an external client can access unexpected services in the cluster, bypassing authorization checks, when a gateway is configured with AUTO_PASSTHROUGH routing configuration.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
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CVE-2021-31920 (GCVE-0-2021-31920)
Vulnerability from cvelistv5 – Published: 2021-05-27 04:03 – Updated: 2024-08-03 23:10
VLAI?
Summary
Istio before 1.8.6 and 1.9.x before 1.9.5 has a remotely exploitable vulnerability where an HTTP request path with multiple slashes or escaped slash characters (%2F or %5C) could potentially bypass an Istio authorization policy when path based authorization rules are used.
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
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CVE-2019-25014 (GCVE-0-2019-25014)
Vulnerability from cvelistv5 – Published: 2021-01-29 06:00 – Updated: 2024-08-05 03:00
VLAI?
Summary
A NULL pointer dereference was found in pkg/proxy/envoy/v2/debug.go getResourceVersion in Istio pilot before 1.5.0-alpha.0. If a particular HTTP GET request is made to the pilot API endpoint, it is possible to cause the Go runtime to panic (resulting in a denial of service to the istio-pilot application).
Severity ?
No CVSS data available.
CWE
- n/a
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
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