SB2022081103 - Inconsistent interpretation of HTTP requests in Cisco Adaptive Security Appliance Software

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Main Vulnerability Database SB2022081103

SB2022081103 - Inconsistent interpretation of HTTP requests in Cisco Adaptive Security Appliance Software

Published: August 11, 2022

Security Bulletin ID SB2022081103
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Data manipulation

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Inconsistent interpretation of HTTP requests (CVE-ID: CVE-2022-20713)

CWE-ID: CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling')

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


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

The vulnerability exists due to improper validation of HTTP requests in the Clientless SSL VPN (WebVPN) component. A remote attacker can trick a victim to visit a malicious website that can pass malicious requests to an ASA device that has the Clientless SSL VPN feature enabled and conduct browser-based attacks.


Remediation

Install update from vendor's website.

References