CVE-2023-46589 Apache Tomcat: HTTP request smuggling via malformed trailer headers

2023-11-2815:31:52

CWE-444

apache

github.com

apache tomcat

http request smuggling

vulnerability

input validation

trailer headers

upgrade

AI Score

6.8

Confidence

Low

SSVC

Exploitation

none

Automatable

yes

Technical Impact

partial

JSON

Improper Input Validation vulnerability in Apache Tomcat.Tomcat from 11.0.0-M1 through 11.0.0-M10, from 10.1.0-M1 through 10.1.15, from 9.0.0-M1 through 9.0.82 and from 8.5.0 through 8.5.95 did not correctly parse HTTP trailer headers. A trailer header that exceeded the header size limit could cause Tomcat to treat a single
request as multiple requests leading to the possibility of request
smuggling when behind a reverse proxy.

Users are recommended to upgrade to version 11.0.0-M11 onwards, 10.1.16 onwards, 9.0.83 onwards or 8.5.96 onwards, which fix the issue.

CNA Affected

[
  {
    "vendor": "Apache Software Foundation",
    "product": "Apache Tomcat",
    "versions": [
      {
        "status": "affected",
        "version": "11.0.0-M1",
        "versionType": "semver",
        "lessThanOrEqual": "11.0.0-M10"
      },
      {
        "status": "affected",
        "version": "10.1.0-M1",
        "versionType": "semver",
        "lessThanOrEqual": "10.1.15"
      },
      {
        "status": "affected",
        "version": "9.0.0-M1",
        "versionType": "semver",
        "lessThanOrEqual": "9.0.82"
      },
      {
        "status": "affected",
        "version": "8.5.0",
        "versionType": "semver",
        "lessThanOrEqual": "8.5.95"
      }
    ],
    "defaultStatus": "unaffected"
  }
]

ADP Affected

[
  {
    "cpes": [
      "cpe:2.3:a:apache:tomcat:-:*:*:*:*:*:*:*"
    ],
    "vendor": "apache",
    "product": "tomcat",
    "versions": [
      {
        "status": "affected",
        "version": "11.0.0-m1",
        "versionType": "custom",
        "lessThanOrEqual": "11.0.0-m10"
      },
      {
        "status": "affected",
        "version": "10.1.0-M1",
        "versionType": "custom",
        "lessThanOrEqual": "10.1.15"
      },
      {
        "status": "affected",
        "version": "9.0.0-M1",
        "versionType": "custom",
        "lessThanOrEqual": "9.0.82"
      },
      {
        "status": "affected",
        "version": "8.5.0",
        "versionType": "custom",
        "lessThanOrEqual": "8.5.95"
      }
    ],
    "defaultStatus": "unknown"
  }
]