68991 : Linux-PAM pam_env Module .pam_environment File Symlink Arbitrary Local File Disclosure
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Timeline

Disclosure Date
2010-10-28

Description

Linux-PAM contains a flaw that may lead to an unauthorized information disclosure. The issue is triggered when an error in the 'pam_env' module when dropping privileges occurs, allowing a local attacker to gain access to arbitrary files by symlinking the '.pam_environment' file to a restricted file.

Classification

Location: Local Access Required
Attack Type: Race Condition
Impact: Loss of Confidentiality
Solution: Upgrade
Exploit: Exploit Unknown
Disclosure: Vendor Verified
OSVDB: Security Software

Solution

Upgrade to version 1.1.3 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

Products

Andrew Morgan
Linux-PAM
1.1.2

References

Credit

CVSSv2 Score

CVSSv2 Base Score = 1.9
Source: nvd.nist.gov | Generated: 2011-01-25 | Disagree? | There are 2 more: View All

Access_vector_0 Access_complexity_1 Authentication_2 Confidentiality_impact_1 Integrity_impact_0 Availability_impact_0

Comments

No Comments.

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