Executive Summary

Summary
Title PAM S/Key: Information disclosure
Informations
Name GLSA-201402-12 First vendor Publication 2014-02-09
Vendor Gentoo Last vendor Modification 2014-02-09
Severity (Vendor) Normal Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:L/Au:N/C:P/I:N/A:N)
Cvss Base Score 2.1 Attack Range Local
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Synopsis

PAM S/Key does not clear provided credentials from memory, allowing local attackers to gain access to cleartext credentials.

Background

PAM S/Key is a pluggable authentication module for the OpenBSD Single-key Password system.

Description

Ulrich Müller reported that a Gentoo patch to PAM S/Key does not remove credentials provided by the user from memory.

Impact

A local attacker with privileged access could inspect a memory dump to gain access to cleartext credentials provided by users.

Workaround

There is no known workaround at this time.

Resolution

All PAM S/Key users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=sys-auth/pam_skey-1.1.5-r5"

References

[ 1 ] CVE-2013-4285 : http://nvd.nist.gov/nvd.cfm?cvename=CVE-2013-4285

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website:

http://security.gentoo.org/glsa/glsa-201402-12.xml

Original Source

Url : http://security.gentoo.org/glsa/glsa-201402-12.xml

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-255 Credentials Management

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1

Nessus® Vulnerability Scanner

Date Description
2014-02-10 Name : The remote Gentoo host is missing one or more security-related patches.
File : gentoo_GLSA-201402-12.nasl - Type : ACT_GATHER_INFO

Alert History

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0
1
2
3
Date Informations
2014-04-29 17:22:35
  • Multiple Updates
2014-04-28 21:25:32
  • Multiple Updates
2014-02-17 11:38:09
  • Multiple Updates
2014-02-09 13:19:18
  • First insertion