GLSA-200411-27 : Fcron: Multiple vulnerabilities

High Nessus Plugin ID 15768


The remote Gentoo host is missing one or more security-related patches.


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


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

See Also

Plugin Details

Severity: High

ID: 15768

File Name: gentoo_GLSA-200411-27.nasl

Version: $Revision: 1.16 $

Type: local

Published: 2004/11/19

Modified: 2015/04/13

Dependencies: 12634

Risk Information

Risk Factor: High


Base Score: 7.2

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

Vulnerability Information

CPE: p-cpe:/a:gentoo:linux:fcron, cpe:/o:gentoo:linux

Required KB Items: Host/local_checks_enabled, Host/Gentoo/release, Host/Gentoo/qpkg-list

Patch Publication Date: 2004/11/18

Vulnerability Publication Date: 2004/11/15

Reference Information

CVE: CVE-2004-1030, CVE-2004-1031, CVE-2004-1032, CVE-2004-1033

OSVDB: 11834, 11835, 11836, 11837

GLSA: 200411-27