CVE-2018-11759 — AI Deep Analysis Summary

🚨 **Essence**: Path traversal flaw in Apache Tomcat JK (mod_jk) Connector. 📉 **Consequences**: Information leakage & bypassing access controls.…

🔍 **Root Cause**: Improper path normalization. The code handling the requested path before matching it to the URI-worker map failed to handle edge cases correctly.…

🏢 **Vendor**: Apache Software Foundation. 📦 **Product**: Apache Tomcat Connectors (mod_jk). 📅 **Affected Versions**: 1.2.0 through 1.2.44. ⚠️ Check your version immediately!

💻 **Capabilities**: Expose application functionality via reverse proxy. 🚫 **Bypass**: Circumvent access controls configured in httpd. 📂 **Impact**: Information disclosure of sensitive backend resources. 🔓

⚙️ **Config Dependency**: Exploitation is easier if only a subset of Tomcat URLs are exposed via httpd. 🌐 **Network**: Requires network access to the mod_jk connector.…

💣 **PoC Available**: Yes! Multiple GitHub repos exist (e.g., immunIT, Jul10l1r4). 🛠️ **Scanners**: Nuclei templates are available for detection. 🌍 **Status**: Publicly known, active exploitation tools exist.

🔎 **Check**: Scan for mod_jk connector versions 1.2.0-1.2.44. 📡 **Tools**: Use Nuclei with CVE-2018-11759 template. 🧪 **Test**: Send specially constructed requests to see if hidden functionality is exposed. 🛡️

✅ **Fixed**: Yes. Apache released patches/commits (e.g., r1857494, r1873980). 📥 **Action**: Upgrade to a version newer than 1.2.44. 🔄 **Red Hat**: RHSA-2019:0367 provides advisory for updates.

🚧 **Workaround**: If patching isn't immediate, restrict access to the mod_jk connector strictly via firewall rules.…

🔥 **Priority**: HIGH. 📅 **Published**: Oct 2018, but still relevant for unpatched legacy systems. ⚠️ **Risk**: Bypassing security controls is critical. 🏃‍♂️ **Action**: Patch ASAP or apply strict network restrictions.