Cross-site scripting in ViewVC ViewVC

Published: 2012-11-19 | Updated: 2020-07-19

Risk	Low
Patch available	YES
Number of vulnerabilities	1
CVE-ID	CVE-2012-4533
CWE-ID	CWE-79
Exploitation vector	Local
Public exploit	N/A
Vulnerable software Subscribe	ViewVC Web applications / Modules and components for CMS
Vendor	ViewVC

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Cross-site scripting

EUVDB-ID: #VU31496

Risk: Low

CVSSv3.1: N/A

CVE-ID: CVE-2012-4533

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

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.

Mitigation

Update to version 1.1.16.

Vulnerable software versions

ViewVC: 1.1.0 - 1.1.15

External links

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
http://exchange.xforce.ibmcloud.com/vulnerabilities/79561
http://wiki.mageia.org/en/Support/Advisories/MGASA-2012-0313

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?