Red Hat PAM qpopper User Enumeration Vulnerability

BID:3242

Info

Red Hat PAM qpopper User Enumeration Vulnerability

Bugtraq ID: 3242
Class: Environment Error
CVE: CVE-2001-1068
Remote: Yes
Local: No
Published: Aug 25 2001 12:00AM
Updated: Jul 11 2009 07:56AM
Credit: Discovered by Charles Chear <[email protected]>.
Vulnerable: Qualcomm qpopper 4.0.1
+ Redhat Linux 7.1
+ Redhat Linux 7.0
+ Sun Cobalt RaQ 4
Not Vulnerable:

Discussion

Red Hat PAM qpopper User Enumeration Vulnerability

Qpopper is a widely used POP daemon for Unix systems.

When qpopper is used in conjunction with PAM on Red Hat systems, remote attackers can enumerate valid account usernames. This is due to different error messages being output when authentication attempts are made using valid and invalid usernames.

This information may make a brute force attack significantly more feasible.

Note: This vulnerability only affects qpopper when it is used with PAM. Red Hat systems are reported to be vulnerable.

Solution / Fix

Red Hat PAM qpopper User Enumeration Vulnerability

Solution:
Currently the SecurityFocus staff are not aware of any vendor-supplied patches for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.


Qualcomm qpopper 4.0.1

References

Red Hat PAM qpopper User Enumeration Vulnerability

References:

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