Arthur de Jong 'nss-pam-ldapd' Authentication Bypass Vulnerability

2011.03.17
Credit: Russell Sim
Risk: Medium
Local: No
Remote: Yes
CWE: CWE-287


CVSS Base Score: 6.8/10
Impact Subscore: 6.4/10
Exploitability Subscore: 8.6/10
Exploit range: Remote
Attack complexity: Medium
Authentication: No required
Confidentiality impact: Partial
Integrity impact: Partial
Availability impact: Partial

Index: nslcd/pam.c =================================================================== --- nslcd/pam.c (revision 1381) +++ nslcd/pam.c (working copy) @@ -106,7 +106,7 @@ if (entry==NULL) { log_log(LOG_WARNING,"\"%s\": user not found: %s",username,ldap_err2string(rc)); - return rc; + return LDAP_NO_SUCH_OBJECT; } /* get the DN */ myldap_cpy_dn(entry,userdn,userdnsz);

References:

http://www.securityfocus.com/bid/46819
http://lists.arthurdejong.org/nss-pam-ldapd-announce/2011/msg00000.html
http://lists.arthurdejong.org/nss-pam-ldapd-announce/2011/attachments/txtVf3rHgt8qQ.txt
http://xforce.iss.net/xforce/xfdb/66028
http://arthurdejong.org/nss-pam-ldapd/news.html#20110309


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