Vulnerability Assessment & Network Security Forums

If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important.  If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery.

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
Mainframe, DEC, VAX, AS 400

Discussions

No Discussions have been posted on this vulnerability.