Apache Tomcat CVE-2018-8037 Information Disclosure Vulnerability

Description

Apache Tomcat is prone to an information-disclosure vulnerability. Attackers can exploit this issue to obtain sensitive information that may aid in further attacks. Apache Tomcat 8.5.5 through 8.5.31 and 9.0.0.M9 through 9.0.9 are vulnerable.

Technologies Affected

• Apache Tomcat 8.5.11
• Apache Tomcat 8.5.12
• Apache Tomcat 8.5.13
• Apache Tomcat 8.5.14
• Apache Tomcat 8.5.15
• Apache Tomcat 8.5.16
• Apache Tomcat 8.5.23
• Apache Tomcat 8.5.27
• Apache Tomcat 8.5.28
• Apache Tomcat 8.5.31
• Apache Tomcat 8.5.5
• Apache Tomcat 8.5.6
• Apache Tomcat 8.5.7
• Apache Tomcat 8.5.8
• Apache Tomcat 8.5.9
• Apache Tomcat 9.0.0.M10
• Apache Tomcat 9.0.0.M11
• Apache Tomcat 9.0.0.M12
• Apache Tomcat 9.0.0.M13
• Apache Tomcat 9.0.0.M15
• Apache Tomcat 9.0.0.M17
• Apache Tomcat 9.0.0.M18
• Apache Tomcat 9.0.0.M19
• Apache Tomcat 9.0.0.M20
• Apache Tomcat 9.0.0.M21
• Apache Tomcat 9.0.0.M22
• Apache Tomcat 9.0.0.M9
• Apache Tomcat 9.0.1
• Apache Tomcat 9.0.4
• Apache Tomcat 9.0.5
• Apache Tomcat 9.0.8
• Apache Tomcat 9.0.9
• Oracle Siebel Applications 19.0
• Oracle Siebel Applications 19.3
• Oracle Siebel Applications 19.7
• Redhat Enterprise Linux 7
• Redhat JBoss EWS 2
• Redhat JBoss EWS 5
• Redhat JBoss Web Server (JWS) 3.0

Recommendations

Block external access at the network boundary, unless external parties require service.
If global access isn’t needed, filter access to the affected computer at the network boundary. Restricting access to only trusted computers and networks might greatly reduce the likelihood of successful exploits.

Run all software as a nonprivileged user with minimal access rights.
Running server processes within a restricted environment using facilities such as chroot or jail may limit the consequences of successful exploits.

Deploy network intrusion detection systems to monitor network traffic for malicious activity.
Deploy NIDS to monitor network traffic for signs of anomalous or suspicious activity. This includes but is not limited to requests that include NOP sleds and unexplained incoming and outgoing traffic. This may indicate exploit attempts or activity that results from successful exploits.

Updates are available. Please see the references or vendor advisory for more information.