FKIE_CVE-2009-2863

Vulnerability from fkie_nvd - Published: 2009-09-28 19:30 - Updated: 2026-06-16 23:10
Severity
Summary
Race condition in the Firewall Authentication Proxy feature in Cisco IOS 12.0 through 12.4 allows remote attackers to bypass authentication, or bypass the consent web page, via a crafted request, aka Bug ID CSCsy15227.
References
psirt@cisco.comhttp://osvdb.org/58340
psirt@cisco.comhttp://tools.cisco.com/security/center/viewAlert.x?alertId=18882Vendor Advisory
psirt@cisco.comhttp://www.cisco.com/en/US/products/products_security_advisory09186a0080af8132.shtmlVendor Advisory
psirt@cisco.comhttp://www.securityfocus.com/bid/36491
psirt@cisco.comhttp://www.securitytracker.com/id?1022935
psirt@cisco.comhttps://exchange.xforce.ibmcloud.com/vulnerabilities/53453
af854a3a-2127-422b-91ae-364da2661108http://osvdb.org/58340
af854a3a-2127-422b-91ae-364da2661108http://tools.cisco.com/security/center/viewAlert.x?alertId=18882Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.cisco.com/en/US/products/products_security_advisory09186a0080af8132.shtmlVendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/36491
af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id?1022935
af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/53453
Impacted products
Vendor Product Version
cisco ios 12.0xk
cisco ios 12.0xr
cisco ios 12.1
cisco ios 12.1e
cisco ios 12.1ex
cisco ios 12.1t
cisco ios 12.1xc
cisco ios 12.1xh
cisco ios 12.1xi
cisco ios 12.1xj
cisco ios 12.1xm
cisco ios 12.1xp
cisco ios 12.1xr
cisco ios 12.1yb
cisco ios 12.1yd
cisco ios 12.1yf
cisco ios 12.1yi
cisco ios 12.2
cisco ios 12.2b
cisco ios 12.2bw
cisco ios 12.2cz
cisco ios 12.2dd
cisco ios 12.2ex
cisco ios 12.2ey
cisco ios 12.2fz
cisco ios 12.2ira
cisco ios 12.2irb
cisco ios 12.2irc
cisco ios 12.2ixa
cisco ios 12.2ixb
cisco ios 12.2ixc
cisco ios 12.2ixd
cisco ios 12.2ixe
cisco ios 12.2ixf
cisco ios 12.2ixg
cisco ios 12.2s
cisco ios 12.2sbc
cisco ios 12.2se
cisco ios 12.2sec
cisco ios 12.2sed
cisco ios 12.2see
cisco ios 12.2sef
cisco ios 12.2seg
cisco ios 12.2sg
cisco ios 12.2sga
cisco ios 12.2sq
cisco ios 12.2sra
cisco ios 12.2srb
cisco ios 12.2src
cisco ios 12.2su
cisco ios 12.2sx
cisco ios 12.2sxa
cisco ios 12.2sxb
cisco ios 12.2sxd
cisco ios 12.2sxe
cisco ios 12.2sxf
cisco ios 12.2sxh
cisco ios 12.2sxi
cisco ios 12.2t
cisco ios 12.2tpc
cisco ios 12.2xa
cisco ios 12.2xb
cisco ios 12.2xd
cisco ios 12.2xe
cisco ios 12.2xg
cisco ios 12.2xj
cisco ios 12.2xk
cisco ios 12.2xl
cisco ios 12.2xm
cisco ios 12.2xo
cisco ios 12.2xq
cisco ios 12.2xt
cisco ios 12.2xv
cisco ios 12.2xw
cisco ios 12.2ya
cisco ios 12.2yb
cisco ios 12.2yc
cisco ios 12.2ye
cisco ios 12.2yf
cisco ios 12.2yh
cisco ios 12.2yl
cisco ios 12.2ym
cisco ios 12.2yn
cisco ios 12.2yq
cisco ios 12.2yu
cisco ios 12.2yv
cisco ios 12.2yx
cisco ios 12.2yz
cisco ios 12.2zd
cisco ios 12.2zh
cisco ios 12.2zj
cisco ios 12.2zl
cisco ios 12.2zy
cisco ios 12.2zya
cisco ios 12.3
cisco ios 12.3b
cisco ios 12.3jk
cisco ios 12.3t
cisco ios 12.3tpc
cisco ios 12.3va
cisco ios 12.3xa
cisco ios 12.3xc
cisco ios 12.3xd
cisco ios 12.3xe
cisco ios 12.3xf
cisco ios 12.3xg
cisco ios 12.3xk
cisco ios 12.3xl
cisco ios 12.3xq
cisco ios 12.3xr
cisco ios 12.3xx
cisco ios 12.3ya
cisco ios 12.3yd
cisco ios 12.3yg
cisco ios 12.3yh
cisco ios 12.3yi
cisco ios 12.3yk
cisco ios 12.3ym
cisco ios 12.3yt
cisco ios 12.3yz
cisco ios 12.4
cisco ios 12.4mr
cisco ios 12.4t
cisco ios 12.4xa
cisco ios 12.4xd
cisco ios 12.4xe
cisco ios 12.4xf
cisco ios 12.4xj
cisco ios 12.4xk
cisco ios 12.4xt
cisco ios 12.4xv
cisco ios 12.4xw
cisco ios 12.4xy
cisco ios 12.4xz
cisco ios 12.4ya
cisco ios 12.4yb
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "psirt@cisco.com"
    }
  ],
  "configurations": [
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          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Race condition in the Firewall Authentication Proxy feature in Cisco IOS 12.0 through 12.4 allows remote attackers to bypass authentication, or bypass the consent web page, via a crafted request, aka Bug ID CSCsy15227."
    },
    {
      "lang": "es",
      "value": "Una condici\u00f3n de carrera en la funci\u00f3n Firewall Authentication Proxy de Cisco IOS v12.0 hasta la v12.4 permite a atacantes remotos evitar la autenticaci\u00f3n, o saltarse la p\u00e1gina web de la autorizaci\u00f3n, a trav\u00e9s de una solicitud debidamente modificada. Se trata del Bug ID CSCsy15227."
    }
  ],
  "id": "CVE-2009-2863",
  "lastModified": "2026-06-16T23:10:23.047",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 7.1,
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:M/Au:N/C:C/I:N/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 6.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ]
  },
  "published": "2009-09-28T19:30:01.313",
  "references": [
    {
      "source": "psirt@cisco.com",
      "url": "http://osvdb.org/58340"
    },
    {
      "source": "psirt@cisco.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://tools.cisco.com/security/center/viewAlert.x?alertId=18882"
    },
    {
      "source": "psirt@cisco.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://www.cisco.com/en/US/products/products_security_advisory09186a0080af8132.shtml"
    },
    {
      "source": "psirt@cisco.com",
      "url": "http://www.securityfocus.com/bid/36491"
    },
    {
      "source": "psirt@cisco.com",
      "url": "http://www.securitytracker.com/id?1022935"
    },
    {
      "source": "psirt@cisco.com",
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/53453"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://osvdb.org/58340"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://tools.cisco.com/security/center/viewAlert.x?alertId=18882"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://www.cisco.com/en/US/products/products_security_advisory09186a0080af8132.shtml"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.securityfocus.com/bid/36491"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "http://www.securitytracker.com/id?1022935"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/53453"
    }
  ],
  "sourceIdentifier": "psirt@cisco.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-287"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.