Security restrictions bypass in Apache Tomcat - CVE-2018-1304

Vulnerability identifier: #VU10707

CSH Severity: Low

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

CVE-ID: CVE-2018-1304

CWE-ID: CWE-264

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vendor: Apache Foundation

Affected software:
Apache Tomcat

The vulnerability allows a remote attacker to bypass security restrictions on the target system.

The weakness exists due to the URL pattern of "" (the empty string) which exactly maps to the context root was not correctly handled when used as part of a security constraint definition. A remote attacker can supply a specially crafted URL, bypass security restrictions and gain unauthorised access to web application resources.

Update to version 7.0.85, 8.0.50, 8.5.28, 9.0.5.

• https://tomcat.apache.org/security-7.html#Fixed_in_Apache_Tomcat_7.0.85
• https://tomcat.apache.org/security-8.html#Fixed_in_Apache_Tomcat_8.0.50
• https://tomcat.apache.org/security-8.html#Fixed_in_Apache_Tomcat_8.5.28
• https://tomcat.apache.org/security-9.html#Fixed_in_Apache_Tomcat_9.0.5