FKIE_CVE-2012-0339

Vulnerability from fkie_nvd - Published: 2012-05-02 10:09 - Updated: 2026-06-16 23:37
Severity
Summary
Cisco IOS 12.2 through 12.4 and 15.0 does not recognize the vrf-also keyword during enforcement of access-class commands, which allows remote attackers to establish TELNET connections from arbitrary source IP addresses via a standard TELNET client, aka Bug ID CSCsi77774.
References
psirt@cisco.comhttp://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SXF/native/release/notes/caveats_SXF_rebuilds.html
psirt@cisco.comhttp://www.securitytracker.com/id?1027005
af854a3a-2127-422b-91ae-364da2661108http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SXF/native/release/notes/caveats_SXF_rebuilds.html
af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id?1027005
Impacted products
Vendor Product Version
cisco ios 12.2
cisco ios 12.3
cisco ios 12.4
cisco ios 15.0
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "psirt@cisco.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:cisco:ios:12.2:*:*:*:*:*:*:*",
              "matchCriteriaId": "E4BC49F2-3DCB-45F0-9030-13F6415EE178",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios:12.3:*:*:*:*:*:*:*",
              "matchCriteriaId": "0668C45B-9D25-424B-B876-C1721BFFE5DA",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios:12.4:*:*:*:*:*:*:*",
              "matchCriteriaId": "9D4D8C72-E7BB-40BF-9AE5-622794D63E09",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:cisco:ios:15.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "CF87CC9A-1AF5-4DB4-ACE5-DB938D3B2F84",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Cisco IOS 12.2 through 12.4 and 15.0 does not recognize the vrf-also keyword during enforcement of access-class commands, which allows remote attackers to establish TELNET connections from arbitrary source IP addresses via a standard TELNET client, aka Bug ID CSCsi77774."
    },
    {
      "lang": "es",
      "value": "Cisco IOS v12.2 hasta v12.4 y v15.0 no reconoce la palabra clave VRF-also durante la ejecuci\u00f3n de comandos de access-class, lo que permite a atacantes remotos establecer conexiones Telnet desde  direcciones IP de origen arbitrarias a trav\u00e9s de un cliente telnet est\u00e1ndar, tambi\u00e9n conocido como Bug ID CSCsi77774."
    }
  ],
  "id": "CVE-2012-0339",
  "lastModified": "2026-06-16T23:37:08.290",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 5.0,
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ]
  },
  "published": "2012-05-02T10:09:22.177",
  "references": [
    {
      "source": "psirt@cisco.com",
      "url": "http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SXF/native/release/notes/caveats_SXF_rebuilds.html"
    },
    {
      "source": "psirt@cisco.com",
      "url": "http://www.securitytracker.com/id?1027005"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SXF/native/release/notes/caveats_SXF_rebuilds.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.securitytracker.com/id?1027005"
    }
  ],
  "sourceIdentifier": "psirt@cisco.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-20"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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