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Home >> Browse Vulnerability Assessment Database >> Gentoo Local Security Checks >> [GLSA-200606-02] shadow: Privilege escalation

Vulnerability Assessment Details

[GLSA-200606-02] shadow: Privilege escalation

Vulnerability Assessment Summary
shadow: Privilege escalation

Detailed Explanation for this Vulnerability Assessment
The remote host is affected by the vulnerability described in GLSA-200606-02
(shadow: Privilege escalation)

When the mailbox is created in useradd, the "open()" function does
not receive the three arguments it expects while O_CREAT is present,
which leads to random permissions on the created file, before fchmod()
is executed.

Impact

Depending on the random permissions given to the mailbox file
which is at this time owned by root, a local user may be able to open
this file for reading or writing, or even executing it, maybe as the
root user.

Workaround

There is no known workaround at this time.

References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1174

Solution:
All shadow users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=sys-apps/shadow-4.0.15-r2"

Network Security Threat Level: Medium

Networks Security ID:

Vulnerability Assessment Copyright: (C) 2006 Michel Arboi

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