CVE-2009-1384 : pam_krb5 2.2.14 through 2.3.4, as used in Red Hat Enterprise Linux (RHEL) 5, gen

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.

Published 2009-05-28 20:30:00

Updated 2018-10-10 19:36:23

Source Red Hat, Inc.

View at NVD, CVE.org

Vulnerability category: BypassGain privilege

Products affected by CVE-2009-1384

Eyrie » Pam-krb5 » Version: 2.3
cpe:2.3:a:eyrie:pam-krb5:2.3:*:*:*:*:*:*:*
Matching versions
When used together with: Redhat » Enterprise Linux » Version: 5
When used together with: Redhat » Enterprise Linux » Version: 5 Client Edition
When used together with: Redhat » Enterprise Linux » Version: 5 Client Workstation Edition
When used together with: Redhat » Enterprise Linux » Version: 5 Server Edition
Eyrie » Pam-krb5 » Version: 2.2.14
cpe:2.3:a:eyrie:pam-krb5:2.2.14:*:*:*:*:*:*:*
Matching versions
When used together with: Redhat » Enterprise Linux » Version: 5
When used together with: Redhat » Enterprise Linux » Version: 5 Client Edition
When used together with: Redhat » Enterprise Linux » Version: 5 Client Workstation Edition
When used together with: Redhat » Enterprise Linux » Version: 5 Server Edition
Eyrie » Pam-krb5 » Version: 2.3.4
cpe:2.3:a:eyrie:pam-krb5:2.3.4:*:*:*:*:*:*:*
Matching versions
When used together with: Redhat » Enterprise Linux » Version: 5
When used together with: Redhat » Enterprise Linux » Version: 5 Client Edition
When used together with: Redhat » Enterprise Linux » Version: 5 Client Workstation Edition
When used together with: Redhat » Enterprise Linux » Version: 5 Server Edition

Exploit prediction scoring system (EPSS) score for CVE-2009-1384

EPSS FAQ

0.74%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 81 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2009-1384

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source	First Seen
5.0	MEDIUM	AV:N/AC:L/Au:N/C:P/I:N/A:N	10.0	2.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: Partial Integrity Impact: None Availability Impact: None

CWE ids for CVE-2009-1384

CWE-287 Improper Authentication

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

Assigned by: nvd@nist.gov (Primary)

Vendor statements for CVE-2009-1384

Red Hat 2010-03-31

This issue did not affect the versions of the pam_krb5 packages, as shipped with Red Hat Enterprise Linux 3 and 4. The issue was addressed in the pam_krb5 packages as shipped with Red Hat Enterprise Linux 5 via: https://rhn.redhat.com/errata/RHSA-2010-0258.html

References for CVE-2009-1384