Vulnerability-Lookup

GHSA-H9R7-C397-3WQR

Vulnerability from github – Published: 2022-05-24 16:44 – Updated: 2024-04-04 00:06

Details

When parsing HTTP/1.x header values, Envoy 1.9.0 and before does not reject embedded zero characters (NUL, ASCII 0x0). This allows remote attackers crafting header values containing embedded NUL characters to potentially bypass header matching rules, gaining access to unauthorized resources.

Severity ?

8.3 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L

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{
  "affected": [],
  "aliases": [
    "CVE-2019-9900"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20",
      "CWE-74"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-04-25T15:29:00Z",
    "severity": "HIGH"
  },
  "details": "When parsing HTTP/1.x header values, Envoy 1.9.0 and before does not reject embedded zero characters (NUL, ASCII 0x0). This allows remote attackers crafting header values containing embedded NUL characters to potentially bypass header matching rules, gaining access to unauthorized resources.",
  "id": "GHSA-h9r7-c397-3wqr",
  "modified": "2024-04-04T00:06:37Z",
  "published": "2022-05-24T16:44:38Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/envoyproxy/envoy/security/advisories/GHSA-x74r-f4mw-c32h"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-9900"
    },
    {
      "type": "WEB",
      "url": "https://github.com/envoyproxy/envoy/issues/6434"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2019:0741"
    },
    {
      "type": "WEB",
      "url": "https://groups.google.com/forum/#!topic/envoy-announce/VoHfnDqZiAM"
    },
    {
      "type": "WEB",
      "url": "https://groups.google.com/forum/#%21topic/envoy-announce/VoHfnDqZiAM"
    },
    {
      "type": "WEB",
      "url": "https://www.envoyproxy.io/docs/envoy/v1.9.1/intro/version_history"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2019-9900 (GCVE-0-2019-9900)

Vulnerability from cvelistv5 – Published: 2019-04-25 14:55 – Updated: 2024-08-04 22:01

Summary

Severity ?

6.5 (Medium)


                        
                          CVSS:3.0/AC:H/AV:N/A:L/C:L/I:L/PR:N/S:C/UI:N

CWE

Assigner

mitre

References

5 references

URL	Tags
https://access.redhat.com/errata/RHSA-2019:0741	vendor-advisoryx_refsource_REDHAT
https://www.envoyproxy.io/docs/envoy/v1.9.1/intro…	x_refsource_CONFIRM
https://github.com/envoyproxy/envoy/issues/6434	x_refsource_CONFIRM
https://groups.google.com/forum/#%21topic/envoy-a…	x_refsource_CONFIRM
https://github.com/envoyproxy/envoy/security/advi…	x_refsource_CONFIRM

Date Public ?

2019-03-29 00:00

Show details on NVD website

JSON

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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-H9R7-C397-3WQR

CVE-2019-9900 (GCVE-0-2019-9900)

Tags

Sightings

Nomenclature