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CVE
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CVE-2011-1024Date: (C)2011-03-19   (M)2023-12-22


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 and Metrics +CVSS Score and Metrics -

CVSS V2 Severity:
CVSS Score : 4.6
Exploit Score: 3.9
Impact Score: 6.4
 
CVSS V2 Metrics:
Access Vector: NETWORK
Access Complexity: HIGH
Authentication: SINGLE
Confidentiality: PARTIAL
Integrity: PARTIAL
Availability: PARTIAL
  
Reference:
SECTRACK-1025188
SECUNIA-43331
SECUNIA-43708
SECUNIA-43718
ADV-2011-0665
GLSA-201406-36
MDVSA-2011:055
MDVSA-2011:056
RHSA-2011:0346
RHSA-2011:0347
USN-1100-1
http://www.openldap.org/lists/openldap-announce/201102/msg00000.html
http://www.openldap.org/lists/openldap-technical/201004/msg00247.html
http://openwall.com/lists/oss-security/2011/02/24/12
http://openwall.com/lists/oss-security/2011/02/25/13
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10735
http://www.openldap.org/devel/cvsweb.cgi/servers/slapd/back-ldap/chain.c.diff?r1=1.76&r2=1.77&hideattic=1&sortbydate=0
http://www.openldap.org/its/index.cgi/Software%20Bugs?id=6607
https://bugzilla.novell.com/show_bug.cgi?id=674985
https://bugzilla.redhat.com/show_bug.cgi?id=680466

CPE    18
cpe:/a:openldap:openldap:2.4.23
cpe:/a:openldap:openldap:2.4.22
cpe:/a:openldap:openldap:2.4.21
cpe:/a:openldap:openldap:2.4.20
...
CWE    1
CWE-264
OVAL    10
oval:org.secpod.oval:def:300428
oval:org.secpod.oval:def:300429
oval:org.secpod.oval:def:500121
oval:org.secpod.oval:def:201471
...

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