GLSA-200412-01 : rssh, scponly: Unrestricted command execution

This script is Copyright (C) 2004-2014 Tenable Network Security, Inc.


Synopsis :

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

Description :

The remote host is affected by the vulnerability described in GLSA-200412-01
(rssh, scponly: Unrestricted command execution)

Jason Wies discovered that when receiving an authorized command from an
authorized user, rssh and scponly do not filter command-line options
that can be used to execute any command on the target host.

Impact :

Using a malicious command, it is possible for a remote authenticated
user to execute any command (or upload and execute any file) on the
target machine with user rights, effectively bypassing any restriction
of scponly or rssh.

Workaround :

There is no known workaround at this time.

See also :

http://www.securityfocus.com/archive/1/383046/2004-11-30/2004-12-06/0
http://www.gentoo.org/security/en/glsa/glsa-200412-01.xml

Solution :

All scponly users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=net-misc/scponly-4.0'
All rssh users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=app-shells/rssh/rssh-2.2.3'

Risk factor :

High / CVSS Base Score : 7.5
(CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P)

Family: Gentoo Local Security Checks

Nessus Plugin ID: 15903 (gentoo_GLSA-200412-01.nasl)

Bugtraq ID:

CVE ID: CVE-2004-1161
CVE-2004-1162