CVE-2001-0590
CVE-2001-0590 is a security vulnerability in apache tomcat. 2 public exploit references exist, so weaponization risk is real. O3 Security detects and blocks CVE-2001-0590 exploitation at runtime via eBPF exploit-chain detection and L7 egress monitoring, even on unpatched systems.
Apache Software Foundation Tomcat Servlet prior to 3.2.2 allows a remote attacker to read the source code to arbitrary 'jsp' files via a malformed URL request which does not end with…
Description
Apache Software Foundation Tomcat Servlet prior to 3.2.2 allows a remote attacker to read the source code to arbitrary 'jsp' files via a malformed URL request which does not end with an HTTP protocol specification (i.e. HTTP/1.0).
Affected Products
tomcatapacheResearch use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.
Apache Tomcat 3.0 - Directory Traversal
by lovehacker · Mar 28, 2001
Detection & mitigation playbook
Vendor / applianceDetect
Inventory every apache tomcat deployment and check each version against the affected-products list above. Because the exploit targets the running system rather than your application code, also watch for exploitation at the network and runtime layer — O3 flags the exploit behaviour from runtime telemetry and egress traffic even before a vulnerable build is confirmed.
Remediation status
No patch has shipped for CVE-2001-0590 yet — track the apache tomcat advisory for a fixed release and apply the workarounds below in the meantime.
Mitigate without a patch
Cut exposure now: restrict the management/admin interface to trusted networks, segment the device, and apply the vendor's recommended configuration mitigations and any WAF/IPS signature. O3's runtime protection blocks the exploit chain at execution, holding the line on unpatched or end-of-life systems until you can patch.
How O3 protects you
O3 detects and blocks CVE-2001-0590 exploitation at runtime: eBPF exploit-chain detection, plus L7 egress monitoring that catches the post-exploitation callback and severs the attacker's outbound channel.
Tailored to CVE-2001-0590. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is CVE-2001-0590 being exploited in your environment?
O3's eBPF runtime sensors and L7 egress monitoring detect and block the CVE-2001-0590 exploit chain at execution — protecting unpatched and end-of-life systems until the vendor patch is applied.