CVE-2018-10244 : Exploit Details and Defense Strategies
Learn about CVE-2018-10244 affecting Suricata version 4.0.4. Discover the impact, technical details, and mitigation steps to secure your systems against this vulnerability.
Suricata version 4.0.4 has a vulnerability in handling EtherNet/IP PDUs, potentially leading to data exposure due to an integer overflow issue.
Understanding CVE-2018-10244
What is CVE-2018-10244?
The flaw in Suricata version 4.0.4 allows for the misinterpretation of malformed EtherNet/IP PDUs, resulting in the reading of unintended data.
The Impact of CVE-2018-10244
The vulnerability can lead to data leakage and potentially be exploited by attackers to access sensitive information.
Technical Details of CVE-2018-10244
Vulnerability Description
The issue arises from an integer overflow during a length check in the DecodeENIPPDU function of the app-layer-enip-common.c file.
Affected Systems and Versions
- Suricata version 4.0.4
Exploitation Mechanism
- Malformed EtherNet/IP PDUs can trigger the vulnerability, causing the parsing code to read beyond allocated data.
Mitigation and Prevention
Immediate Steps to Take
- Update Suricata to version 4.0.5 or later to mitigate the vulnerability.
- Monitor network traffic for any signs of exploitation.
Long-Term Security Practices
- Regularly update and patch all software to prevent known vulnerabilities.
- Implement network segmentation to limit the impact of potential breaches.
Patching and Updates
- Stay informed about security advisories and promptly apply patches to secure systems.