Jboss Application Server HTTPServerILServlet.java remote code execution
Description
JBoss Application Server versions prior to the patch for CVE-2017-7504 contain an insecure deserialization vulnerability in the HTTPServerILServlet.java component of the JMS over HTTP Invocation Layer within the JbossMQ implementation. This flaw allows unauthenticated remote attackers to execute arbitrary code by sending maliciously crafted serialized Java objects to vulnerable endpoints. The vulnerability exists because the application deserializes untrusted data without proper validation.
Remediation
Take the following steps to remediate this vulnerability:
1. Apply Security Patches Immediately
Update to a patched version of JBoss Application Server that addresses CVE-2017-7504. Consult Red Hat's security advisory at https://access.redhat.com/security/cve/cve-2017-7504 for specific version requirements and patch availability for your JBoss product line.
2. Disable Vulnerable Components
If immediate patching is not possible, disable the JMS over HTTP Invocation Layer (HTTPServerILServlet) if it is not required for your application's functionality.
3. Implement Network-Level Controls
• Restrict network access to JBoss management and JMS interfaces using firewall rules
• Place JBoss servers behind a Web Application Firewall (WAF) configured to detect deserialization attacks
• Limit access to trusted IP addresses only
4. Verify Remediation
After applying patches, rescan the system to confirm the vulnerability has been successfully remediated and no deserialization endpoints remain exposed.