National Cyber Awareness System

Vulnerability Summary for CVE-2011-1024

Overview

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.

Impact

CVSS Severity (version 2.0):

CVSS Version 2 Metrics:

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to nvd@nist.gov.

External Source: MLIST

Name: [openldap-announce] 20110212 OpenLDAP 2.4.24 available

Type: Patch Information

Hyperlink:http://www.openldap.org/lists/openldap-announce/201102/msg00000.html

External Source: CONFIRM

Name: http://www.openldap.org/devel/cvsweb.cgi/servers/slapd/back-ldap/chain.c.diff?r1=1.76&r2=1.77&hideattic=1&sortbydate=0

Type: Patch Information

Hyperlink:http://www.openldap.org/devel/cvsweb.cgi/servers/slapd/back-ldap/chain.c.diff?r1=1.76&r2=1.77&hideattic=1&sortbydate=0

External Source: CONFIRM

Name: https://bugzilla.redhat.com/show_bug.cgi?id=680466

Hyperlink:https://bugzilla.redhat.com/show_bug.cgi?id=680466

External Source: CONFIRM

Name: https://bugzilla.novell.com/show_bug.cgi?id=674985

Hyperlink:https://bugzilla.novell.com/show_bug.cgi?id=674985

External Source: VUPEN

Name: ADV-2011-0665

Type: Advisory

Hyperlink:http://www.vupen.com/english/advisories/2011/0665

External Source: UBUNTU

Name: USN-1100-1

Hyperlink:http://www.ubuntu.com/usn/USN-1100-1

External Source: REDHAT

Name: RHSA-2011:0347

Hyperlink:http://www.redhat.com/support/errata/RHSA-2011-0347.html

External Source: REDHAT

Name: RHSA-2011:0346

Hyperlink:http://www.redhat.com/support/errata/RHSA-2011-0346.html

External Source: MLIST

Name: [openldap-technical] 20100429 ppolicy master/slave issue

Hyperlink:http://www.openldap.org/lists/openldap-technical/201004/msg00247.html

External Source: CONFIRM

Name: http://www.openldap.org/its/index.cgi/Software%20Bugs?id=6607

Hyperlink:http://www.openldap.org/its/index.cgi/Software%20Bugs?id=6607

External Source: MANDRIVA

Name: MDVSA-2011:056

Hyperlink:http://www.mandriva.com/security/advisories?name=MDVSA-2011:056

External Source: MANDRIVA

Name: MDVSA-2011:055

Hyperlink:http://www.mandriva.com/security/advisories?name=MDVSA-2011:055

External Source: SECTRACK

Name: 1025188

Hyperlink:http://securitytracker.com/id?1025188

External Source: SECUNIA

Name: 43718

Hyperlink:http://secunia.com/advisories/43718

External Source: SECUNIA

Name: 43708

Hyperlink:http://secunia.com/advisories/43708

External Source: SECUNIA

Name: 43331

Type: Advisory

Hyperlink:http://secunia.com/advisories/43331

External Source: MLIST

Name: [oss-security] 20110225 Re: CVE Request -- OpenLDAP -- two issues

Hyperlink:http://openwall.com/lists/oss-security/2011/02/25/13

External Source: MLIST

Name: [oss-security] 20110224 CVE Request -- OpenLDAP -- two issues

Hyperlink:http://openwall.com/lists/oss-security/2011/02/24/12