SB2013092404 - Gentoo update for MoinMoin

Description

This security bulletin contains information about 4 secuirty vulnerabilities.

1) Path traversal (CVE-ID: CVE-2012-6080)

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences in the _do_attachment_move function in the AttachFile action (action/AttachFile.py) in MoinMoin 1.9.3 through 1.9.5. A remote authenticated attacker can send a specially crafted HTTP request and remote attackers to overwrite arbitrary files via a . (dot dot) in a file name.

2) Arbitrary file upload (CVE-ID: CVE-2012-6081)

The vulnerability allows a remote authenticated attacker to compromise system.

The weakness exists due to insufficient validation of the filename extension when uploading files twikidraw (action/twikidraw.py) and anywikidraw (action/anywikidraw.py) actions. A remote authenticated attacker with write permissions can upload and execute arbitrary file with executable extension.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Note: the vulnerability was being actively exploited.

3) Cross-site scripting (CVE-ID: CVE-2012-6082)

Vulnerability allows a remote attacker to perform Cross-site scripting attacks.

An input validation error exists in the rsslink function in theme/__init__.py in MoinMoin 1.9.5 when processing page name in a rss link. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in victim's browser in security context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

4) Path traversal (CVE-ID: CVE-2012-6495)

The vulnerability allows a remote #AU# to read and manipulate data.

Multiple directory traversal vulnerabilities in the (1) twikidraw (action/twikidraw.py) and (2) anywikidraw (action/anywikidraw.py) actions in MoinMoin before 1.9.6 allow remote authenticated users with write permissions to overwrite arbitrary files via unspecified vectors. NOTE: this can be leveraged with CVE-2012-6081 to execute arbitrary code.

Remediation

Install update from vendor's website.

References

• https://security.gentoo.org/
• https://security.gentoo.org/glsa/201309-14