pam_ldap and nss_ldap, when used with OpenLDAP and connecting to a slave using TLS, does not use TLS for the subsequent connection if the client is referred to a master, which may cause a password to be sent in cleartext and allows remote attackers to sniff the password.

References

• https://nvd.nist.gov/vuln/detail/CVE-2005-2069
• https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=161990
• https://exchange.xforce.ibmcloud.com/vulnerabilities/21245
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9445
• http://archives.neohapsis.com/archives/fulldisclosure/2005-07/0060.html
• http://bugs.gentoo.org/show_bug.cgi?id=96767
• http://bugzilla.padl.com/show_bug.cgi?id=210
• http://bugzilla.padl.com/show_bug.cgi?id=211
• http://secunia.com/advisories/17233
• http://secunia.com/advisories/17845
• http://secunia.com/advisories/21520
• http://support.avaya.com/elmodocs2/security/ASA-2006-157.htm
• http://www.gentoo.org/security/en/glsa/glsa-200507-13.xml
• http://www.openldap.org/its/index.cgi/Incoming?id=3791
• http://www.osvdb.org/17692
• http://www.redhat.com/support/errata/RHSA-2005-751.html
• http://www.redhat.com/support/errata/RHSA-2005-767.html
• http://www.securityfocus.com/bid/14125
• http://www.securityfocus.com/bid/14126
• http://www.ubuntu.com/usn/usn-152-1
• http://wwwnew.mandriva.com/security/advisories?name=MDKSA-2005:121