CVE-2017-7702 : Vulnerability Insights and Analysis
Learn about CVE-2017-7702 impacting Wireshark versions 2.2.0 to 2.2.5 and 2.0.0 to 2.0.11. Discover the risks, affected systems, exploitation, and mitigation steps.
Wireshark versions 2.2.0 to 2.2.5 and 2.0.0 to 2.0.11 had a vulnerability in the WBXML dissector, potentially leading to an infinite loop under specific conditions.
Understanding CVE-2017-7702
Wireshark vulnerability impacting versions 2.2.0 to 2.2.5 and 2.0.0 to 2.0.11.
What is CVE-2017-7702?
The Wireshark versions mentioned had an issue in the WBXML dissector that could cause the dissector to enter an endless loop when encountering certain scenarios like packet injection or malformed capture files.
The Impact of CVE-2017-7702
- Attackers could potentially exploit this vulnerability to cause a denial of service by triggering the infinite loop in the dissector.
- This issue could lead to resource exhaustion and impact the availability of the Wireshark application.
Technical Details of CVE-2017-7702
Details about the vulnerability in Wireshark versions 2.2.0 to 2.2.5 and 2.0.0 to 2.0.11.
Vulnerability Description
The problem resided in the WBXML dissector, which lacked proper length validation, allowing it to get stuck in an infinite loop under specific conditions.
Affected Systems and Versions
- Wireshark versions 2.2.0 to 2.2.5 and 2.0.0 to 2.0.11 were impacted by this vulnerability.
Exploitation Mechanism
- The vulnerability could be exploited by injecting malicious packets or using malformed capture files to trigger the infinite loop in the WBXML dissector.
Mitigation and Prevention
Ways to address and prevent the CVE-2017-7702 vulnerability.
Immediate Steps to Take
- Update Wireshark to the latest version to ensure the vulnerability is patched.
- Avoid opening suspicious capture files from untrusted sources.
Long-Term Security Practices
- Regularly update Wireshark and other software to mitigate potential vulnerabilities.
- Implement network monitoring to detect any unusual traffic patterns that could indicate exploitation attempts.
Patching and Updates
- Apply patches provided by Wireshark promptly to fix the vulnerability and enhance the security of the application.