GLSA-200701-28 : thttpd: Unauthenticated remote file access

This script is Copyright (C) 2007-2014 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-200701-28
(thttpd: Unauthenticated remote file access)

thttpd is vulnerable to an underlying change made to the
start-stop-daemon command in the current stable Gentoo baselayout
package (version 1.12.6). In the new version, the start-stop-daemon
command performs a 'chdir /' command just before starting the thttpd
process. In the Gentoo default configuration, this causes thttpd to
start with the document root set to '/', the sytem root directory.

Impact :

When thttpd starts with the document root set to the system root
directory, all files on the system that are readable by the thttpd
process can be remotely accessed by unauthenticated users.

Workaround :

Alter the THTTPD_OPTS variable in /etc/conf.d/thttpd to include the
'-d' option to specify the document root. Alternatively, modify the
THTTPD_OPTS variable in /etc/conf.d/thttpd to specify a thttpd.conf
file using the '-C' option, and then configure the 'dir=' directive in
that thttpd.conf file.

See also :

http://www.gentoo.org/security/en/glsa/glsa-200701-28.xml

Solution :

All thttpd users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=www-servers/thttpd-2.25b-r5'

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N)

Family: Gentoo Local Security Checks

Nessus Plugin ID: 24313 (gentoo_GLSA-200701-28.nasl)

Bugtraq ID:

CVE ID: CVE-2007-0664