Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openldap | Openldap | 2.4.6 |
Related Weaknesses (CWE)
References
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10735
- http://openwall.com/lists/oss-security/2011/02/24/12
- http://openwall.com/lists/oss-security/2011/02/25/13
- http://secunia.com/advisories/43331Vendor Advisory
- http://secunia.com/advisories/43708
- http://secunia.com/advisories/43718
- http://security.gentoo.org/glsa/glsa-201406-36.xml
- http://securitytracker.com/id?1025188
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:055
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:056
- http://www.openldap.org/devel/cvsweb.cgi/servers/slapd/back-ldap/chain.c.diff?r1Patch
- http://www.openldap.org/its/index.cgi/Software%20Bugs?id=6607
- http://www.openldap.org/lists/openldap-announce/201102/msg00000.htmlPatch
- http://www.openldap.org/lists/openldap-technical/201004/msg00247.html
FAQ
What is CVE-2011-1024?
CVE-2011-1024 is a vulnerability with a CVSS score of 4.6 (MEDIUM). 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 ...
How severe is CVE-2011-1024?
CVE-2011-1024 has been rated MEDIUM with a CVSS base score of 4.6/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2011-1024?
Check the references section above for vendor advisories and patch information. Affected products include: Openldap Openldap.