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Last updated: 9/1/2014 3:41:32 AM

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Vulnerability Summary for CVE-2010-3430

Original release date: 01/24/2011
Last revised: 07/23/2012
Source: US-CERT/NIST

Overview

The privilege-dropping implementation in the (1) pam_env and (2) pam_mail modules in Linux-PAM (aka pam) 1.1.2 does not perform the required setfsgid and setgroups system calls, which might allow local users to obtain sensitive information by leveraging unintended group permissions, as demonstrated by a symlink attack on the .pam_environment file in a user's home directory. NOTE: this vulnerability exists because of an incomplete fix for CVE-2010-3435.

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score: 4.7 (MEDIUM) (AV:L/AC:M/Au:N/C:C/I:N/A:N) (legend)
Impact Subscore: 6.9
Exploitability Subscore: 3.4
CVSS Version 2 Metrics:
Access Vector: Locally exploitable
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type: Allows unauthorized disclosure of information

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External Source: MLIST
Name: [oss-security] 20100927 Re: Minor security flaw with pam_xauth
Type: Patch Information
External Source: MLIST
Name: [oss-security] 20100924 Re: Minor security flaw with pam_xauth
External Source: CONFIRM
Name: http://git.altlinux.org/people/ldv/packages/?p=pam.git;a=commit;h=843807a3a90f52e7538be756616510730a24739a
Type: Patch Information
External Source: MLIST
Name: [oss-security] 20100921 Re: Minor security flaw with pam_xauth
Type: Patch Information
External Source: MLIST
Name: [oss-security] 20100921 Re: Minor security flaw with pam_xauth
External Source: MLIST
Name: [oss-security] 20100928 Re: Minor security flaw with pam_xauth
Type: Patch Information
External Source: MLIST
Name: [oss-security] 20100921 Re: Minor security flaw with pam_xauth
Type: Patch Information
External Source: SECUNIA
Name: 49711
External Source: GENTOO
Name: GLSA-201206-31
External Source: MLIST
Name: [oss-security] 20100921 Re: Minor security flaw with pam_xauth
External Source: MLIST
Name: [oss-security] 20101025 Re: Minor security flaw with pam_xauth
Type: Patch Information
External Source: MLIST
Name: [oss-security] 20100928 Re: Minor security flaw with pam_xauth
External Source: CONFIRM
Name: https://bugzilla.redhat.com/show_bug.cgi?id=641361
Type: Patch Information
External Source: MLIST
Name: [oss-security] 20100927 Re: Minor security flaw with pam_xauth
Type: Patch Information
External Source: MLIST
Name: [oss-security] 20100921 Re: Minor security flaw with pam_xauth
External Source: MLIST
Name: [oss-security] 20101004 Re: Minor security flaw with pam_xauth
Type: Patch Information

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