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Vulnerability from bitnami_vulndb
Published
2024-03-06 11:10
Modified
2026-09-08 08:34
Summary
Auth weakness in JNDIRealm
Details

A vulnerability in the JNDI Realm of Apache Tomcat allows an attacker to authenticate using variations of a valid user name and/or to bypass some of the protection provided by the LockOut Realm. This issue affects Apache Tomcat 10.0.0 to 10.0.5; 9.0.0 to 9.0.45; 8.5.0 to 8.5.65.

To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "tomcat",
        "purl": "pkg:bitnami/tomcat"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "7.0.0"
            },
            {
              "fixed": "7.0.109"
            },
            {
              "introduced": "8.5.0"
            },
            {
              "fixed": "8.5.66"
            },
            {
              "introduced": "9.0.0"
            },
            {
              "fixed": "9.0.46"
            },
            {
              "introduced": "10.0.0"
            },
            {
              "fixed": "10.0.6"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-30640"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*"
    ],
    "severity": "Medium"
  },
  "details": "A vulnerability in the JNDI Realm of Apache Tomcat allows an attacker to authenticate using variations of a valid user name and/or to bypass some of the protection provided by the LockOut Realm. This issue affects Apache Tomcat 10.0.0 to 10.0.5; 9.0.0 to 9.0.45; 8.5.0 to 8.5.65.",
  "id": "BIT-tomcat-2021-30640",
  "modified": "2026-09-08T08:34:36.952Z",
  "published": "2024-03-06T11:10:06.381Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://lists.apache.org/thread.html/r59f9ef03929d32120f91f4ea7e6e79edd5688d75d0a9b65fd26d1fe8%40%3Cannounce.tomcat.apache.org%3E"
    },
    {
      "type": "ADVISORY",
      "url": "https://lists.debian.org/debian-lts-announce/2021/08/msg00009.html"
    },
    {
      "type": "ADVISORY",
      "url": "https://security.gentoo.org/glsa/202208-34"
    },
    {
      "type": "ADVISORY",
      "url": "https://security.netapp.com/advisory/ntap-20210827-0007/"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.debian.org/security/2021/dsa-4952"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.debian.org/security/2021/dsa-4986"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.oracle.com//security-alerts/cpujul2021.html"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.oracle.com/security-alerts/cpujan2022.html"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.oracle.com/security-alerts/cpuoct2021.html"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-30640"
    }
  ],
  "schema_version": "1.5.0",
  "summary": "Auth weakness in JNDIRealm"
}



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