CWE-295
AllowedImproper Certificate Validation
Abstraction: Base · Status: Draft
The product does not validate, or incorrectly validates, a certificate.
2114 vulnerabilities reference this CWE, most recent first.
GHSA-9239-QGCV-WRCC
Vulnerability from github – Published: 2022-05-14 03:23 – Updated: 2022-05-14 03:23The iRemoconWiFi App for Android version 4.1.7 and earlier does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.
{
"affected": [],
"aliases": [
"CVE-2018-0553"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-04-09T13:29:00Z",
"severity": "HIGH"
},
"details": "The iRemoconWiFi App for Android version 4.1.7 and earlier does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.",
"id": "GHSA-9239-qgcv-wrcc",
"modified": "2022-05-14T03:23:51Z",
"published": "2022-05-14T03:23:51Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-0553"
},
{
"type": "WEB",
"url": "https://play.google.com/store/apps/details?id=jp.co.glamo.iremoconwifi"
},
{
"type": "WEB",
"url": "http://jvn.jp/en/jp/JVN43382653/index.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-9266-J9V3-Q4J5
Vulnerability from github – Published: 2022-06-11 00:00 – Updated: 2024-09-13 18:30An issue was discovered in Couchbase Sync Gateway 3.x before 3.0.2. Admin credentials are not verified when using X.509 client-certificate authentication from Sync Gateway to Couchbase Server. When Sync Gateway is configured to authenticate with Couchbase Server using X.509 client certificates, the admin credentials provided to the Admin REST API are ignored, resulting in privilege escalation for unauthenticated users. The Public REST API is not impacted by this issue. A workaround is to replace X.509 certificate based authentication with Username and Password authentication inside the bootstrap configuration.
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "couchbase"
},
"ranges": [
{
"events": [
{
"introduced": "3.0.0"
},
{
"fixed": "3.0.2"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2022-32563"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": true,
"github_reviewed_at": "2024-04-24T21:38:00Z",
"nvd_published_at": "2022-06-10T12:15:00Z",
"severity": "CRITICAL"
},
"details": "An issue was discovered in Couchbase Sync Gateway 3.x before 3.0.2. Admin credentials are not verified when using X.509 client-certificate authentication from Sync Gateway to Couchbase Server. When Sync Gateway is configured to authenticate with Couchbase Server using X.509 client certificates, the admin credentials provided to the Admin REST API are ignored, resulting in privilege escalation for unauthenticated users. The Public REST API is not impacted by this issue. A workaround is to replace X.509 certificate based authentication with Username and Password authentication inside the bootstrap configuration.",
"id": "GHSA-9266-j9v3-q4j5",
"modified": "2024-09-13T18:30:10Z",
"published": "2022-06-11T00:00:36Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-32563"
},
{
"type": "WEB",
"url": "https://forums.couchbase.com/tags/security"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/couchbase/PYSEC-2022-207.yaml"
},
{
"type": "WEB",
"url": "https://www.couchbase.com/alerts"
},
{
"type": "WEB",
"url": "https://www.couchbase.com/alerts/#CVE-2022-32563"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "Couchbase Sync Gateway admin credentials not verified when using X.509 client cert authentication"
}
GHSA-92HM-VX54-JG8M
Vulnerability from github – Published: 2025-02-27 21:32 – Updated: 2025-02-28 18:31Draytek devices Vigor 165/166 prior to v4.2.6 , Vigor 2620/LTE200 prior to v3.9.8.8, Vigor 2860/2925 prior to v3.9.7, Vigor 2862/2926 prior to v3.9.9.4, Vigor 2133/2762/2832 prior to v3.9.8, Vigor 2135/2765/2766 prior to v4.4.5.1, Vigor 2865/2866/2927 prior to v4.4.5.3, Vigor 2962/3910 prior to v4.3.2.7, Vigor 3912 prior to v4.3.5.2, and Vigor 2925 up to v3.9.6 were discovered to not utilize certificate verification, allowing attackers to upload crafted APPE modules from non-official servers, leading to arbitrary code execution.
{
"affected": [],
"aliases": [
"CVE-2024-41334"
],
"database_specific": {
"cwe_ids": [
"CWE-295",
"CWE-94"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-02-27T21:15:36Z",
"severity": "CRITICAL"
},
"details": "Draytek devices Vigor 165/166 prior to v4.2.6 , Vigor 2620/LTE200 prior to v3.9.8.8, Vigor 2860/2925 prior to v3.9.7, Vigor 2862/2926 prior to v3.9.9.4, Vigor 2133/2762/2832 prior to v3.9.8, Vigor 2135/2765/2766 prior to v4.4.5.1, Vigor 2865/2866/2927 prior to v4.4.5.3, Vigor 2962/3910 prior to v4.3.2.7, Vigor 3912 prior to v4.3.5.2, and Vigor 2925 up to v3.9.6 were discovered to not utilize certificate verification, allowing attackers to upload crafted APPE modules from non-official servers, leading to arbitrary code execution.",
"id": "GHSA-92hm-vx54-jg8m",
"modified": "2025-02-28T18:31:00Z",
"published": "2025-02-27T21:32:17Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-41334"
},
{
"type": "WEB",
"url": "https://medium.com/faraday/advisory-multiple-vulnerabilities-affecting-draytek-routers-78a6cb8b3946"
},
{
"type": "WEB",
"url": "http://draytek.com"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-9343-CHMF-H73M
Vulnerability from github – Published: 2026-05-13 21:32 – Updated: 2026-07-14 15:31An improper certificate validation vulnerability in the Palo Alto Networks Prisma SD-WAN ION enables man-in-the-middle (MitM) attacker to impersonate the controller.
{
"affected": [],
"aliases": [
"CVE-2026-0244"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-13T19:16:58Z",
"severity": "MODERATE"
},
"details": "An improper certificate validation vulnerability in the Palo Alto Networks Prisma SD-WAN ION enables man-in-the-middle (MitM) attacker to impersonate the controller.",
"id": "GHSA-9343-chmf-h73m",
"modified": "2026-07-14T15:31:58Z",
"published": "2026-05-13T21:32:05Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-0244"
},
{
"type": "WEB",
"url": "https://security.paloaltonetworks.com/CVE-2026-0244"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:Y/R:U/V:D/RE:M/U:Amber",
"type": "CVSS_V4"
}
]
}
GHSA-939C-9C3M-5QXF
Vulnerability from github – Published: 2022-05-13 01:03 – Updated: 2022-05-13 01:03Trillian 5.1.0.19 does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate, a different vulnerability than CVE-2009-4831.
{
"affected": [],
"aliases": [
"CVE-2012-5824"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2012-11-04T22:55:00Z",
"severity": "MODERATE"
},
"details": "Trillian 5.1.0.19 does not verify that the server hostname matches a domain name in the subject\u0027s Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate, a different vulnerability than CVE-2009-4831.",
"id": "GHSA-939c-9c3m-5qxf",
"modified": "2022-05-13T01:03:52Z",
"published": "2022-05-13T01:03:52Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2012-5824"
},
{
"type": "WEB",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/79915"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/51190"
},
{
"type": "WEB",
"url": "http://www.cs.utexas.edu/~shmat/shmat_ccs12.pdf"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/56454"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-93VP-2J2Q-F8FX
Vulnerability from github – Published: 2025-08-29 18:30 – Updated: 2025-09-19 18:31An improper certificate validation vulnerability has been reported to affect Qsync Central. If a remote attacker gains a user account, they can then exploit the vulnerability to compromise the security of the system.
We have already fixed the vulnerability in the following version: Qsync Central 4.5.0.7 ( 2025/04/23 ) and later
{
"affected": [],
"aliases": [
"CVE-2025-30277"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-08-29T18:15:40Z",
"severity": "HIGH"
},
"details": "An improper certificate validation vulnerability has been reported to affect Qsync Central. If a remote attacker gains a user account, they can then exploit the vulnerability to compromise the security of the system.\n\nWe have already fixed the vulnerability in the following version:\nQsync Central 4.5.0.7 ( 2025/04/23 ) and later",
"id": "GHSA-93vp-2j2q-f8fx",
"modified": "2025-09-19T18:31:21Z",
"published": "2025-08-29T18:30:53Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-30277"
},
{
"type": "WEB",
"url": "https://www.qnap.com/en/security-advisory/qsa-25-22"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-93WW-43RR-79V3
Vulnerability from github – Published: 2024-11-25 19:40 – Updated: 2025-01-30 17:47A vulnerability was found in Keycloak. Deployments of Keycloak with a reverse proxy not using pass-through termination of TLS, with mTLS enabled, are affected. This issue may allow an attacker on the local network to authenticate as any user or client that leverages mTLS as the authentication mechanism.
{
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "org.keycloak:keycloak-core"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "26.0.6"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2024-10039"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": true,
"github_reviewed_at": "2024-11-25T19:40:46Z",
"nvd_published_at": null,
"severity": "HIGH"
},
"details": "A vulnerability was found in Keycloak. Deployments of Keycloak with a reverse proxy not using pass-through termination of TLS, with mTLS enabled, are affected. This issue may allow an attacker on the local network to authenticate as any user or client that leverages mTLS as the authentication mechanism.",
"id": "GHSA-93ww-43rr-79v3",
"modified": "2025-01-30T17:47:40Z",
"published": "2024-11-25T19:40:46Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/keycloak/keycloak/security/advisories/GHSA-93ww-43rr-79v3"
},
{
"type": "WEB",
"url": "https://github.com/keycloak/keycloak/issues/35217"
},
{
"type": "PACKAGE",
"url": "https://github.com/keycloak/keycloak"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
}
],
"summary": "Keycloak mTLS Authentication Bypass via Reverse Proxy TLS Termination "
}
GHSA-945X-4WX3-JQMG
Vulnerability from github – Published: 2026-08-10 09:31 – Updated: 2026-08-10 09:31Android and iOS apps ECOVACS PRO App improperly validate server certificates. Communication may be retrieved and/or altered.
{
"affected": [],
"aliases": [
"CVE-2026-66410"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-08-10T09:17:23Z",
"severity": "LOW"
},
"details": "Android and iOS apps ECOVACS PRO App improperly validate server certificates.\nCommunication may be retrieved and/or altered.",
"id": "GHSA-945x-4wx3-jqmg",
"modified": "2026-08-10T09:31:24Z",
"published": "2026-08-10T09:31:23Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-66410"
},
{
"type": "WEB",
"url": "https://jvn.jp/en/vu/JVNVU92804348"
},
{
"type": "WEB",
"url": "https://robot.hellohas.co.jp/news/update_20260331"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-946V-J885-6J5F
Vulnerability from github – Published: 2022-08-26 00:03 – Updated: 2022-09-01 00:00Odyssey passes to server unencrypted bytes from man-in-the-middle When Odyssey is configured to use certificate Common Name for client authentication, a man-in-the-middle attacker can inject arbitrary SQL queries when a connection is first established, despite the use of SSL certificate verification and encryption. This is similar to CVE-2021-23214 for PostgreSQL.
{
"affected": [],
"aliases": [
"CVE-2021-43766"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-08-25T18:15:00Z",
"severity": "HIGH"
},
"details": "Odyssey passes to server unencrypted bytes from man-in-the-middle When Odyssey is configured to use certificate Common Name for client authentication, a man-in-the-middle attacker can inject arbitrary SQL queries when a connection is first established, despite the use of SSL certificate verification and encryption. This is similar to CVE-2021-23214 for PostgreSQL.",
"id": "GHSA-946v-j885-6j5f",
"modified": "2022-09-01T00:00:22Z",
"published": "2022-08-26T00:03:30Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-43766"
},
{
"type": "WEB",
"url": "https://github.com/yandex/odyssey/issues/376,"
},
{
"type": "WEB",
"url": "https://www.postgresql.org/support/security/CVE-2021-23214"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-9495-4RPC-2JCG
Vulnerability from github – Published: 2022-05-24 16:58 – Updated: 2024-04-04 02:10The Twitter Kit framework through 3.4.2 for iOS does not properly validate the api.twitter.com SSL certificate. Although the certificate chain must contain one of a set of pinned certificates, there are certain implementation errors such as a lack of hostname verification. NOTE: this is an end-of-life product.
{
"affected": [],
"aliases": [
"CVE-2019-16263"
],
"database_specific": {
"cwe_ids": [
"CWE-295"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-10-07T12:15:00Z",
"severity": "HIGH"
},
"details": "The Twitter Kit framework through 3.4.2 for iOS does not properly validate the api.twitter.com SSL certificate. Although the certificate chain must contain one of a set of pinned certificates, there are certain implementation errors such as a lack of hostname verification. NOTE: this is an end-of-life product.",
"id": "GHSA-9495-4rpc-2jcg",
"modified": "2024-04-04T02:10:00Z",
"published": "2022-05-24T16:58:02Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-16263"
},
{
"type": "WEB",
"url": "https://blog.appicaptor.com/2019/10/04/vulnerable-library-warning-twitterkit-for-ios"
},
{
"type": "WEB",
"url": "https://github.com/twitter-archive/twitter-kit-ios/blob/ac42e1351a66afa5ff7718d04d64a905dafe1f41/TwitterCore/TwitterCore/Networking/Security/TWTRServerTrustEvaluator.m#L75-L81"
},
{
"type": "WEB",
"url": "https://www.sit.fraunhofer.de/fileadmin/dokumente/CVE/Advisory_TwitterKit_for_iOS_CVE-2019-16263.pdf"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
}
]
}
Mitigation
Certificates should be carefully managed and checked to assure that data are encrypted with the intended owner's public key.
Mitigation
If certificate pinning is being used, ensure that all relevant properties of the certificate are fully validated before the certificate is pinned, including the hostname.
CAPEC-459: Creating a Rogue Certification Authority Certificate
An adversary exploits a weakness resulting from using a hashing algorithm with weak collision resistance to generate certificate signing requests (CSR) that contain collision blocks in their "to be signed" parts. The adversary submits one CSR to be signed by a trusted certificate authority then uses the signed blob to make a second certificate appear signed by said certificate authority. Due to the hash collision, both certificates, though different, hash to the same value and so the signed blob works just as well in the second certificate. The net effect is that the adversary's second X.509 certificate, which the Certification Authority has never seen, is now signed and validated by that Certification Authority.
CAPEC-475: Signature Spoofing by Improper Validation
An adversary exploits a cryptographic weakness in the signature verification algorithm implementation to generate a valid signature without knowing the key.