Apache Tomcat Connectors software is a tool that enables communication between Apache HTTP Server and Apache Tomcat, facilitating web application server configuration. The purpose of the software is to provide users with simplicity and ease of use, allowing for swift integration of the Apache HTTP Server and Apache Tomcat. The software is primarily used in a production environment, enabling organizations to optimize their web applications for better performance.
CVE-2018-11759 is a vulnerability discovered in the Apache Tomcat Connectors software. In earlier versions of the software, the code that normalized requested paths wasn't programmed to handle every possible scenario. This resulted in certain edge cases not being handled correctly. An attacker could exploit this vulnerability by submitting specially crafted requests that would expose critical application functionality unintended for client access. The vulnerability could also bypass implemented access controls in some settings.
If exploited, this CVE-2018-11759 vulnerability could have serious ramifications for an organization's digital assets. A cyber attacker could gain access to sensitive data, leading to theft, data breaches, and other malicious activities. Exploitation of this vulnerability would result in a major security incident, jeopardizing the confidentiality, integrity, and availability of affected systems.
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REFERENCES
- http://www.securityfocus.com/bid/105888
- https://access.redhat.com/errata/RHSA-2019:0366
- https://access.redhat.com/errata/RHSA-2019:0367
- https://lists.apache.org/thread.html/277d42b48b6e9aef50949c0dcc79ce21693091d73da246b3c1981925@%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/5b7a23e245c93235c503900da854a143596d901bf1a1f67e851a5de4@%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/6d564bb0ab73d6b3efdd1d6b1c075d1a2c84ecd84a4159d6122529ad@%3Cannounce.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/8d2a579bbd977c225c70cb23b0ec54865fb0dab5da3eff1e060c9935@%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/ba661b0edd913b39ff129a32d855620dd861883ade05fd88a8ce517d@%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/r5c616dfc49156e4b06ffab842800c80f4425924d0f20c452c127a53c@%3Cdev.tomcat.apache.org%3E
- https://lists.apache.org/thread.html/rf8e8c091182b45daa50d3557cad9b10bb4198e3f08cf8f1c66a1b08d@%3Cdev.tomcat.apache.org%3E
- https://lists.debian.org/debian-lts-announce/2018/12/msg00007.html
- https://www.debian.org/security/2018/dsa-4357
- https://www.oracle.com/security-alerts/cpujan2020.html
Precautions that can be taken to protect against this vulnerability include:
- Updating the Apache Tomcat Connectors software to the latest version
- Configuring HTTP server access controls to block malicious requests
- Implementing web application firewall protections
- Regularly monitoring logs for suspicious activity
- Regularly auditing and scanning systems for vulnerabilities
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