CVE-2011-1024

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.

Category

4.6
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.25%
Vendor Advisory gentoo.org Vendor Advisory redhat.com Vendor Advisory mandriva.com Vendor Advisory redhat.com Vendor Advisory mandriva.com Vendor Advisory ubuntu.com Vendor Advisory secunia.com Vendor Advisory vupen.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://security.gentoo.org/glsa/glsa-201406-36.xml vendor advisory
http://www.redhat.com/support/errata/RHSA-2011-0346.html vendor advisory
http://securitytracker.com/id?1025188 vdb entry
http://secunia.com/advisories/43708 third party advisory
http://www.openldap.org/its/index.cgi/Software%20Bugs?id=6607
http://www.openldap.org/lists/openldap-technical/201004/msg00247.html mailing list
http://www.openldap.org/devel/cvsweb.cgi/servers/slapd/back-ldap/chain.c.diff?r1=1.76&r2=1.77&hideattic=1&sortbydate=0 patch
http://www.openldap.org/lists/openldap-announce/201102/msg00000.html patch mailing list
http://www.mandriva.com/security/advisories?name=MDVSA-2011:056 vendor advisory
https://bugzilla.novell.com/show_bug.cgi?id=674985
http://openwall.com/lists/oss-security/2011/02/25/13 mailing list
http://www.redhat.com/support/errata/RHSA-2011-0347.html vendor advisory
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705
http://www.mandriva.com/security/advisories?name=MDVSA-2011:055 vendor advisory
http://secunia.com/advisories/43718 third party advisory
https://bugzilla.redhat.com/show_bug.cgi?id=680466
http://openwall.com/lists/oss-security/2011/02/24/12 mailing list
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10735
http://www.ubuntu.com/usn/USN-1100-1 vendor advisory
http://www.vupen.com/english/advisories/2011/0665 vdb entry vendor advisory
http://secunia.com/advisories/43331 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2011-1024?
CVE-2011-1024 has been scored as a medium severity vulnerability.
How to fix CVE-2011-1024?
To fix CVE-2011-1024, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2011-1024 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2011-1024 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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