CVE-2019-16779 : Exploit Details and Defense Strategies
Learn about CVE-2019-16779 in RubyGem excon before 0.71.0, where a race condition in persistent connections could leak response data. Mitigation steps and security practices included.
In versions of RubyGem excon prior to 0.71.0, a race condition could lead to leaked response data when persistent connections were interrupted.
Understanding CVE-2019-16779
What is CVE-2019-16779?
In RubyGem excon before version 0.71.0, a race condition in persistent connections could result in subsequent requests reading data from a previous response.
The Impact of CVE-2019-16779
The vulnerability has a CVSS base score of 5.8 (Medium severity) with high confidentiality impact and low privileges required for exploitation.
Technical Details of CVE-2019-16779
Vulnerability Description
- Race condition in persistent connections could lead to leaked response data
Affected Systems and Versions
- Product: excon
- Vendor: excon
- Versions affected: < 0.71.0
Exploitation Mechanism
- Attack Complexity: High
- Attack Vector: Network
- User Interaction: Required
Mitigation and Prevention
Immediate Steps to Take
- Disable persistent connections to mitigate the issue
- Be aware of potential performance implications
Long-Term Security Practices
- Regularly update to the latest version of excon
Patching and Updates
- Apply the security update to version 0.71.0 or higher