GLSA-200801-11 : CherryPy: Directory traversal vulnerability

This script is Copyright (C) 2008-2015 Tenable Network Security, Inc.

Synopsis :

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

Description :

The remote host is affected by the vulnerability described in GLSA-200801-11
(CherryPy: Directory traversal vulnerability)

CherryPy does not sanitize the session id, provided as a cookie value,
in the FileSession._get_file_path() function before using it as part of
the file name.

Impact :

A remote attacker could exploit this vulnerability to read and possibly
write arbitrary files on the web server, or to hijack valid sessions,
by providing a specially crafted session id. This only affects
applications using file-based sessions.

Workaround :

Disable the 'FileSession' functionality by using 'PostgresqlSession' or
'RamSession' session management in your CherryPy application.

See also :

Solution :

All CherryPy 2.2 users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=dev-python/cherrypy-2.2.1-r2'
All CherryPy 3.0 users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=dev-python/cherrypy-3.0.2-r1'

Risk factor :

High / CVSS Base Score : 7.5
CVSS Temporal Score : 6.5
Public Exploit Available : true

Family: Gentoo Local Security Checks

Nessus Plugin ID: 30116 (gentoo_GLSA-200801-11.nasl)

Bugtraq ID: 27181

CVE ID: CVE-2008-0252

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