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Home >> Browse Vulnerability Assessment Database >> Gentoo Local Security Checks >> [GLSA-200411-27] Fcron: Multiple vulnerabilities


Vulnerability Assessment Details

[GLSA-200411-27] Fcron: Multiple vulnerabilities

Vulnerability Assessment Summary
Fcron: Multiple vulnerabilities

Detailed Explanation for this Vulnerability Assessment
The remote host is affected by the vulnerability described in GLSA-200411-27
(Fcron: Multiple vulnerabilities)


Due to design errors in the fcronsighup program, Fcron may permit a
local user to bypass access restrictions (CVE-2004-1031), view the
contents of root owned files (CVE-2004-1030), remove arbitrary files or
create empty files (CVE-2004-1032), and send a SIGHUP to any process. A
vulnerability also exists in fcrontab which may permit local users to
view the contents of fcron.permit and fcron.deny (CVE-2004-1033).

Impact

A local attacker could exploit these vulnerabilities to perform a
Denial of Service on the system running Fcron.

Workaround

Make sure the fcronsighup and fcrontab binaries are only
executable by trusted users.

References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-1030
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-1031
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-1032
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-1033


Solution:
All Fcron users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=sys-apps/fcron-2.0.2"


Network Security Threat Level: Medium


Networks Security ID:

Vulnerability Assessment Copyright: (C) 2005 Michel Arboi

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