#VU88155 Input validation error in Undertow - CVE-2023-4639

CSH
CYBERSECURITY HELP
Sign In REGISTER
 
Main Vulnerability Database Vulnerabilities #VU88155

#VU88155 Input validation error in Undertow - CVE-2023-4639

Published: April 4, 2024


Vulnerability identifier: #VU88155
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2023-4639
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Undertow
Software vendor:
Red Hat Inc.

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to insufficient validation of cookies with certain value-delimiting characters in incoming requests. A remote attacker can construct a cookie value to exfiltrate HttpOnly cookie values or spoof arbitrary additional cookie values, leading to unauthorized data access or modification.


Remediation

Install updates from vendor's website.

External links