#VU53124 Inconsistent interpretation of HTTP requests in Virtual Application Delivery Controller (formerly Virtual Traffic Manager) - CVE-2021-31922 

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Main Vulnerability Database Vulnerabilities #VU53124

#VU53124 Inconsistent interpretation of HTTP requests in Virtual Application Delivery Controller (formerly Virtual Traffic Manager) - CVE-2021-31922

Published: May 11, 2021


Vulnerability identifier: #VU53124
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-31922
CWE-ID: CWE-444
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Virtual Application Delivery Controller (formerly Virtual Traffic Manager)
Software vendor:
Ivanti

Description

The vulnerability allows a remote attacker to preform HTTP request smuggling attacks.

The vulnerability exists due to improper validation of HTTP/2 requests. A remote attacker can send a specially crafted HTTP/2 request to the server and smuggle arbitrary HTTP headers.

Successful exploitation of vulnerability may allow an attacker to poison HTTP cache and perform phishing attacks.


Remediation

Install updates from vendor's website.

External links