SB2021031119 - Cross-site scripting in BIG-IP Advanced WAF and ASM

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Main Vulnerability Database SB2021031119

SB2021031119 - Cross-site scripting in BIG-IP Advanced WAF and ASM

Published: March 11, 2021

Security Bulletin ID SB2021031119
Severity
Medium
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Medium 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 security vulnerability.


1) DOM-based cross-site scripting (CVE-ID: CVE-2021-22993)

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 BIG-IP ASM DoS Profile properties page. A remote attacker can inject a malicious script into the BIG-IP Advanced WAF and ASM Configuration utility 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