SB2018020927 - Cross-site scripting in Fortinet, FortiOS

Description

This security bulletin contains information about 1 vulnerability.

1) Cross-site scripting (CVE-ID: CVE-2012-0941)

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

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear

Vulnerability allows a remote attacker to perform XSS attacks.

The vulnerability is caused by an input validation error in Fortinet FortiGate UTM WAF appliances with FortiOS 4.3.x before 4.3.6 when processing vectors involving the (1) Endpoint Monitor, (2) Dialup List, or (3) Log. 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.

Remediation

Install update from vendor's website.

References

• http://packetstormsecurity.org/files/109168/VL-144.txt
• http://www.securityfocus.com/bid/51708
• https://exchange.xforce.ibmcloud.com/vulnerabilities/72761
• https://fortiguard.com/psirt/FG-IR-012-001
• https://securitytracker.com/id/1026594
• https://www.vulnerability-lab.com/get_content.php?id=144