SB2017033102 - Cross-site scripting in MantisBT

Description

This security bulletin contains information about 1 security vulnerability.

1) Cross-site scripting (CVE-ID: CVE-2017-6973)

Vulnerability allows a remote attacker to perform XSS attacks.

The vulnerability is caused by an input validation error in the MantisBT Configuration Report page (adm_config_report.php) when processing "action" HTTP parameter. A remote authenticated attacker can trick the victim to follow a specially 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.

Exploitation example:

http://mantisServerIP/adm_config_report.php?action="><script>alert("XSS")</script>

Remediation

Install update from vendor's website.

References

• http://openwall.com/lists/oss-security/2017/03/30/4
• http://www.mantisbt.org/bugs/view.php?id=22537