CVE-2011-1024 (GCVE-0-2011-1024)

Vulnerability from cvelistv5 – Published: 2011-03-20 01:00 – Updated: 2024-08-06 22:14
VLAI
Summary
chain.c in back-ldap in OpenLDAP 2.4.x before 2.4.24, when a master-slave configuration with a chain overlay and ppolicy_forward_updates (aka authentication-failure forwarding) is used, allows remote authenticated users to bypass external-program authentication by sending an invalid password to a slave server.
Severity
No CVSS data available.
CWE
  • n/a
Assigner
References
URL Tags
http://security.gentoo.org/glsa/glsa-201406-36.xml vendor-advisoryx_refsource_GENTOO
http://www.redhat.com/support/errata/RHSA-2011-03… vendor-advisoryx_refsource_REDHAT
http://securitytracker.com/id?1025188 vdb-entryx_refsource_SECTRACK
http://secunia.com/advisories/43708 third-party-advisoryx_refsource_SECUNIA
http://www.openldap.org/its/index.cgi/Software%20… x_refsource_CONFIRM
http://www.openldap.org/lists/openldap-technical/… mailing-listx_refsource_MLIST
http://www.openldap.org/devel/cvsweb.cgi/servers/… x_refsource_CONFIRM
http://www.openldap.org/lists/openldap-announce/2… mailing-listx_refsource_MLIST
http://www.mandriva.com/security/advisories?name=… vendor-advisoryx_refsource_MANDRIVA
https://bugzilla.novell.com/show_bug.cgi?id=674985 x_refsource_CONFIRM
http://openwall.com/lists/oss-security/2011/02/25/13 mailing-listx_refsource_MLIST
http://www.redhat.com/support/errata/RHSA-2011-03… vendor-advisoryx_refsource_REDHAT
http://kb.juniper.net/InfoCenter/index?page=conte… x_refsource_CONFIRM
http://www.mandriva.com/security/advisories?name=… vendor-advisoryx_refsource_MANDRIVA
http://secunia.com/advisories/43718 third-party-advisoryx_refsource_SECUNIA
https://bugzilla.redhat.com/show_bug.cgi?id=680466 x_refsource_CONFIRM
http://openwall.com/lists/oss-security/2011/02/24/12 mailing-listx_refsource_MLIST
http://kb.juniper.net/InfoCenter/index?page=conte… x_refsource_CONFIRM
http://www.ubuntu.com/usn/USN-1100-1 vendor-advisoryx_refsource_UBUNTU
http://www.vupen.com/english/advisories/2011/0665 vdb-entryx_refsource_VUPEN
http://secunia.com/advisories/43331 third-party-advisoryx_refsource_SECUNIA
Date Public
2010-04-29 00:00
Show details on NVD website
To clipboard 

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            "value": "chain.c en back-ldap en OpenLDAP v2.4.x anteriores a v2.4.24 cuando se utiliza una configuraci\u00f3n maestro-esclavo con una superposici\u00f3n de la cadena y policy_forward_updates (tambi\u00e9n conocido como authentication-failure forwarding), permite a usuarios remotos autenticados eludir la autenticaci\u00f3n por programa externo mediante el env\u00edo de una contrase\u00f1a no v\u00e1lida para un servidor esclavo."
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            "url": "http://security.gentoo.org/glsa/glsa-201406-36.xml"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://securitytracker.com/id?1025188"
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          {
            "source": "secalert@redhat.com",
            "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2011:055"
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          {
            "source": "secalert@redhat.com",
            "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2011:056"
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          {
            "source": "secalert@redhat.com",
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            "url": "http://www.openldap.org/devel/cvsweb.cgi/servers/slapd/back-ldap/chain.c.diff?r1=1.76\u0026r2=1.77\u0026hideattic=1\u0026sortbydate=0"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://www.openldap.org/its/index.cgi/Software%20Bugs?id=6607"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Patch"
            ],
            "url": "http://www.openldap.org/lists/openldap-announce/201102/msg00000.html"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://www.openldap.org/lists/openldap-technical/201004/msg00247.html"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://www.redhat.com/support/errata/RHSA-2011-0346.html"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://www.redhat.com/support/errata/RHSA-2011-0347.html"
          },
          {
            "source": "secalert@redhat.com",
            "url": "http://www.ubuntu.com/usn/USN-1100-1"
          },
          {
            "source": "secalert@redhat.com",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "http://www.vupen.com/english/advisories/2011/0665"
          },
          {
            "source": "secalert@redhat.com",
            "url": "https://bugzilla.novell.com/show_bug.cgi?id=674985"
          },
          {
            "source": "secalert@redhat.com",
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=680466"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://kb.juniper.net/InfoCenter/index?page=content\u0026id=JSA10705"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://kb.juniper.net/InfoCenter/index?page=content\u0026id=JSA10735"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://openwall.com/lists/oss-security/2011/02/24/12"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://openwall.com/lists/oss-security/2011/02/25/13"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "http://secunia.com/advisories/43331"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://secunia.com/advisories/43708"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://secunia.com/advisories/43718"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://security.gentoo.org/glsa/glsa-201406-36.xml"
          },
          {
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            "url": "http://securitytracker.com/id?1025188"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2011:055"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.mandriva.com/security/advisories?name=MDVSA-2011:056"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
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            "url": "http://www.openldap.org/devel/cvsweb.cgi/servers/slapd/back-ldap/chain.c.diff?r1=1.76\u0026r2=1.77\u0026hideattic=1\u0026sortbydate=0"
          },
          {
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            "url": "http://www.openldap.org/its/index.cgi/Software%20Bugs?id=6607"
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          {
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          },
          {
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          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "http://www.redhat.com/support/errata/RHSA-2011-0346.html"
          },
          {
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            "url": "http://www.redhat.com/support/errata/RHSA-2011-0347.html"
          },
          {
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            "url": "http://www.ubuntu.com/usn/USN-1100-1"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "tags": [
              "Vendor Advisory"
            ],
            "url": "http://www.vupen.com/english/advisories/2011/0665"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://bugzilla.novell.com/show_bug.cgi?id=674985"
          },
          {
            "source": "af854a3a-2127-422b-91ae-364da2661108",
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=680466"
          }
        ],
        "sourceIdentifier": "secalert@redhat.com",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-264"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2025-11-21T12:58:46+00:00",
      "cve": "CVE-2011-1024",
      "id": "CVE-2011-1024",
      "initial_release_date": "2011-01-01T00:00:00+00:00",
      "product_status:fixed": "345",
      "product_status:known_not_affected": "1",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "openldap: forwarded bind failure messages cause success",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2011/cve-2011-1024.json",
      "version": "3"
    }
  }
}



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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.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.