SB2012111901 - Cross-site scripting in ViewVC ViewVC

Description

This security bulletin contains information about 1 security vulnerability.

1) Cross-site scripting (CVE-ID: CVE-2012-4533)

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in the "extra" details in the DiffSource._get_row function in lib/viewvc.py in ViewVC 1.0.x before 1.0.13 and 1.1.x before 1.1.16. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in 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.

Remediation

Install update from vendor's website.

References

• http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=691062
• http://osvdb.org/86566
• http://secunia.com/advisories/51041
• http://secunia.com/advisories/51072
• http://viewvc.tigris.org/issues/show_bug.cgi?id=515
• http://viewvc.tigris.org/source/browse/*checkout*/viewvc/tags/1.0.13/CHANGES
• http://viewvc.tigris.org/source/browse/*checkout*/viewvc/tags/1.1.16/CHANGES
• http://viewvc.tigris.org/source/browse/viewvc?view=rev&revision=2792
• http://viewvc.tigris.org/source/browse/viewvc?view=rev&revision=2794
• http://www.debian.org/security/2012/dsa-2563
• http://www.mandriva.com/security/advisories?name=MDVSA-2013:134
• http://www.openwall.com/lists/oss-security/2012/10/21/2
• http://www.openwall.com/lists/oss-security/2012/10/21/3
• http://www.securityfocus.com/bid/56161
• https://exchange.xforce.ibmcloud.com/vulnerabilities/79561
• https://wiki.mageia.org/en/Support/Advisories/MGASA-2012-0313