National Cyber-Alert System
Vulnerability Summary for CVE-2009-1384
Original release date:05/28/2009
Last revised:06/09/2009
Source:
US-CERT/NIST
Overview
pam_krb5 2.2.14 through 2.3.4, as used in Red Hat Enterprise Linux (RHEL) 5, generates different password prompts depending on whether the user account exists, which allows remote attackers to enumerate valid usernames.
Impact
CVSS Severity (version 2.0):
Impact Subscore:
2.9
Exploitability Subscore:
10.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type:Allows unauthorized disclosure of information
- Official Statement from Red Hat (06/01/2009)
-
Red Hat is aware of this issue and is tracking it via the following bug: https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=CVE-2009-1384
This issue did not affect the versions of the pam_krb5 package, as shipped with Red Hat Enterprise Linux 2.1, 3 or 4.
This issue affect the version of the pam_krb5 package as shipped in Red Hat Enterprise Linux 5.
The Red Hat Security Response Team has rated this issue as having low security impact, a future update may address this flaw. More information regarding issue severity can be found here: http://www.redhat.com/security/updates/classification/
For further details about PAM configurations affected by this flaw, as well as instructions on how to resolve this problem via configuration changes, see: https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2009-1384#c15
References to Advisories, Solutions, and Tools
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External Source: CONFIRM
Name: https://bugzilla.redhat.com/show_bug.cgi?id=502602
Type: Advisory
External Source: VUPEN
Name: ADV-2009-1448
External Source: BID
Name: 35112
External Source: MLIST
Name: [oss-security] 20090527 CVE assignment notification (pam_krb5 CVE-2009-1384)
External Source: SECUNIA
Name: 35230
External Source: OSVDB
Name: 54791
