FKIE_CVE-2008-0555

Vulnerability from fkie_nvd - Published: 2008-04-04 00:44 - Updated: 2026-06-16 22:49
Severity
Summary
The ExpandCert function in Apache-SSL before apache_1.3.41+ssl_1.59 does not properly handle (1) '/' and (2) '=' characters in a Distinguished Name (DN) in a client certificate, which might allow remote attackers to bypass authentication via a crafted DN that triggers overwriting of environment variables.
References
cve@mitre.orghttp://secunia.com/advisories/29644Vendor Advisory
cve@mitre.orghttp://securityreason.com/securityalert/3797
cve@mitre.orghttp://www.apache-ssl.org/advisory-cve-2008-0555.txtExploit
cve@mitre.orghttp://www.cynops.de/advisories/CVE-2008-0555.txtExploit
cve@mitre.orghttp://www.klink.name/security/aklink-sa-2008-005-apache-ssl.txtExploit
cve@mitre.orghttp://www.securityfocus.com/archive/1/490386/100/0/threaded
cve@mitre.orghttp://www.securityfocus.com/bid/28576Patch
cve@mitre.orghttp://www.securitytracker.com/id?1019784
cve@mitre.orghttp://www.vupen.com/english/advisories/2008/1079/references
cve@mitre.orghttps://exchange.xforce.ibmcloud.com/vulnerabilities/41618
af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/29644Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://securityreason.com/securityalert/3797
af854a3a-2127-422b-91ae-364da2661108http://www.apache-ssl.org/advisory-cve-2008-0555.txtExploit
af854a3a-2127-422b-91ae-364da2661108http://www.cynops.de/advisories/CVE-2008-0555.txtExploit
af854a3a-2127-422b-91ae-364da2661108http://www.klink.name/security/aklink-sa-2008-005-apache-ssl.txtExploit
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/archive/1/490386/100/0/threaded
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/28576Patch
af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id?1019784
af854a3a-2127-422b-91ae-364da2661108http://www.vupen.com/english/advisories/2008/1079/references
af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/41618
Impacted products
Vendor Product Version
apache-ssl apache-ssl 1.3.34_1.57

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:apache-ssl:apache-ssl:1.3.34_1.57:*:*:*:*:*:*:*",
              "matchCriteriaId": "F97198C6-EE6A-43C2-B69B-7026505F7DC0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The ExpandCert function in Apache-SSL before apache_1.3.41+ssl_1.59 does not properly handle (1) \u0027/\u0027 and (2) \u0027=\u0027 characters in a Distinguished Name (DN) in a client certificate, which might allow remote attackers to bypass authentication via a crafted DN that triggers overwriting of environment variables."
    },
    {
      "lang": "es",
      "value": "La funci\u00f3n ExpandCert en Apache-SSL versiones anteriores apache_1.3.41+ssl_1.59 no gestiona correctamente los caracteres (1) \u0027/\u0027 y (2) \u0027=\u0027 en un Distinguished Name (DN) de un certificado de cliente, lo cual puede permitir a atacantes remotos evitar autenticarse a trav\u00e9s de un DN manipulado que dispara la sobreescritura de variables de entorno."
    }
  ],
  "id": "CVE-2008-0555",
  "lastModified": "2026-06-16T22:49:52.087",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 7.5,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": true,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ]
  },
  "published": "2008-04-04T00:44:00.000",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://secunia.com/advisories/29644"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://securityreason.com/securityalert/3797"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit"
      ],
      "url": "http://www.apache-ssl.org/advisory-cve-2008-0555.txt"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit"
      ],
      "url": "http://www.cynops.de/advisories/CVE-2008-0555.txt"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Exploit"
      ],
      "url": "http://www.klink.name/security/aklink-sa-2008-005-apache-ssl.txt"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.securityfocus.com/archive/1/490386/100/0/threaded"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Patch"
      ],
      "url": "http://www.securityfocus.com/bid/28576"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.securitytracker.com/id?1019784"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.vupen.com/english/advisories/2008/1079/references"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/41618"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://secunia.com/advisories/29644"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://securityreason.com/securityalert/3797"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit"
      ],
      "url": "http://www.apache-ssl.org/advisory-cve-2008-0555.txt"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit"
      ],
      "url": "http://www.cynops.de/advisories/CVE-2008-0555.txt"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Exploit"
      ],
      "url": "http://www.klink.name/security/aklink-sa-2008-005-apache-ssl.txt"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.securityfocus.com/archive/1/490386/100/0/threaded"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "http://www.securityfocus.com/bid/28576"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.securitytracker.com/id?1019784"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.vupen.com/english/advisories/2008/1079/references"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/41618"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        },
        {
          "lang": "en",
          "value": "CWE-287"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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