CVE-2011-1024

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Summary

CVECVE-2011-1024
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2011-03-20 02:00:03 UTC
Updated2026-04-29 01:13:23 UTC
Descriptionchain.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.

Risk And Classification

Primary CVSS: v2.0 4.6 from [email protected]

AV:N/AC:H/Au:S/C:P/I:P/A:P

Problem Types: CWE-264 | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
High
Authentication
Single
Confidentiality
Partial
Integrity
Partial
Availability
Partial

AV:N/AC:H/Au:S/C:P/I:P/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Openldap Openldap 2.4.10 All All All
Application Openldap Openldap 2.4.11 All All All
Application Openldap Openldap 2.4.12 All All All
Application Openldap Openldap 2.4.13 All All All
Application Openldap Openldap 2.4.14 All All All
Application Openldap Openldap 2.4.15 All All All
Application Openldap Openldap 2.4.16 All All All
Application Openldap Openldap 2.4.17 All All All
Application Openldap Openldap 2.4.18 All All All
Application Openldap Openldap 2.4.19 All All All
Application Openldap Openldap 2.4.20 All All All
Application Openldap Openldap 2.4.21 All All All
Application Openldap Openldap 2.4.22 All All All
Application Openldap Openldap 2.4.23 All All All
Application Openldap Openldap 2.4.6 All All All
Application Openldap Openldap 2.4.7 All All All
Application Openldap Openldap 2.4.8 All All All
Application Openldap Openldap 2.4.9 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
OpenLDAP ITS - Software Bugs/6607 af854a3a-2127-422b-91ae-364da2661108 www.openldap.org
USN-1100-1: OpenLDAP vulnerabilities | Ubuntu af854a3a-2127-422b-91ae-364da2661108 www.ubuntu.com
Security Advisory SA43708 - Red Hat update for openldap - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
Support af854a3a-2127-422b-91ae-364da2661108 www.redhat.com
oss-security - CVE Request -- OpenLDAP -- two issues af854a3a-2127-422b-91ae-364da2661108 openwall.com
Support / Security / Advisories / / MDVSA-2011:055 | Mandriva af854a3a-2127-422b-91ae-364da2661108 www.mandriva.com
OpenLDAP Multiple Vulnerabilities - Secunia.com af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
680466 – (CVE-2011-1024) CVE-2011-1024 openldap: forwarded bind failure messages cause success af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com
oss-security - Re: CVE Request -- OpenLDAP -- two issues af854a3a-2127-422b-91ae-364da2661108 openwall.com
Webmail - OVH af854a3a-2127-422b-91ae-364da2661108 www.vupen.com Vendor Advisory
Access Denied af854a3a-2127-422b-91ae-364da2661108 bugzilla.novell.com
www.openldap.org/devel/cvsweb.cgi/servers/slapd/back-ldap/chain.c.diff af854a3a-2127-422b-91ae-364da2661108 www.openldap.org Patch
Support af854a3a-2127-422b-91ae-364da2661108 www.redhat.com
OpenLDAP Forwarding Error May Let Remote Users Bypass Authentication for External Applications - SecurityTracker af854a3a-2127-422b-91ae-364da2661108 securitytracker.com
Red Hat update for openldap - Secunia.com af854a3a-2127-422b-91ae-364da2661108 secunia.com
Juniper Networks - 2015-10 Security Bulletin: CTPView: Multiple Vulnerabilities in CTPView af854a3a-2127-422b-91ae-364da2661108 kb.juniper.net
Support / Security / Advisories / / MDVSA-2011:056 | Mandriva af854a3a-2127-422b-91ae-364da2661108 www.mandriva.com
ppolicy master/slave issue af854a3a-2127-422b-91ae-364da2661108 www.openldap.org
2016-04 Security Bulletin: CTP Series: Multiple vulnerabilities in CTP Series - Juniper Networks af854a3a-2127-422b-91ae-364da2661108 kb.juniper.net
OpenLDAP 2.4.24 available af854a3a-2127-422b-91ae-364da2661108 www.openldap.org Patch
Gentoo Linux Documentation -- OpenLDAP: Multiple vulnerabilities af854a3a-2127-422b-91ae-364da2661108 security.gentoo.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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