CVE-2011-3628

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Summary

CVECVE-2011-3628
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2014-04-15 23:55:07 UTC
Updated2026-05-06 22:30:45 UTC
DescriptionUntrusted search path vulnerability in pam_motd (aka the MOTD module) in libpam-modules before 1.1.3-2ubuntu2.1 on Ubuntu 11.10, before 1.1.2-2ubuntu8.4 on Ubuntu 11.04, before 1.1.1-4ubuntu2.4 on Ubuntu 10.10, before 1.1.1-2ubuntu5.4 on Ubuntu 10.04 LTS, and before 0.99.7.1-5ubuntu6.5 on Ubuntu 8.04 LTS, when using certain configurations such as "session optional pam_motd.so", allows local users to gain privileges by modifying the PATH environment variable to reference a malicious command, as demonstrated via uname.

Risk And Classification

Primary CVSS: v2.0 6.9 from [email protected]

AV:L/AC:M/Au:N/C:C/I:C/A:C

Problem Types: NVD-CWE-Other | n/a

CVSS v2.0 Breakdown

Access Vector
Local
Access Complexity
Medium
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete

AV:L/AC:M/Au:N/C:C/I:C/A:C

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Canonical Libpam-modules 0.9.7 All All All
Application Canonical Libpam-modules 1.1.1 All All All
Application Canonical Libpam-modules 1.1.2 All All All
Application Canonical Libpam-modules 1.1.3 All All All
Operating System Canonical Ubuntu Linux 10.04 - lts All
Operating System Canonical Ubuntu Linux 10.10 All All All
Operating System Canonical Ubuntu Linux 11.04 All All All
Operating System Canonical Ubuntu Linux 11.10 All All All
Operating System Canonical Ubuntu Linux 8.04 - lts All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
USN-1237-1: PAM vulnerabilities | Ubuntu af854a3a-2127-422b-91ae-364da2661108 www.ubuntu.com Vendor Advisory
Bug #610125 “pam_motd runs commands as root with unsanitised env...” : Bugs : “pam” package : Ubuntu af854a3a-2127-422b-91ae-364da2661108 bugs.launchpad.net
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NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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