Input validation error in Undertow - CVE-2020-1757
Published: April 23, 2020
Vulnerability identifier: #VU27296
CSH Severity: Medium
CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-1757
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to bypass security restrictions.
The vulnerability exists due to insufficient validation of user-supplied input in Servlet container that causes the servletPath to incorrectly normalize data by truncating the path after semicolon. A remote attacker can pass specially crafted input to the application and bypass security restrictions
Affected software
Undertow
How to mitigate CVE-2020-1757
Install updates from vendor's website.
Undertow - update to 2.1.0