CVE-2021-25763 : Security Advisory and Response
Learn about CVE-2021-25763 affecting JetBrains Ktor before 1.4.2, enabling weak cipher suites by default and the impact on system security. Find mitigation steps and update information.
JetBrains Ktor before version 1.4.2 enabled weak cipher suites by default, posing a security risk to affected systems.
Understanding CVE-2021-25763
This CVE highlights a vulnerability in JetBrains Ktor that allowed weak cipher suites to be active automatically.
What is CVE-2021-25763?
CVE-2021-25763 pertains to JetBrains Ktor versions prior to 1.4.2 that had vulnerable cipher suites enabled as the default setting.
The Impact of CVE-2021-25763
The presence of weak cipher suites in JetBrains Ktor could potentially expose sensitive data to unauthorized access and compromise the confidentiality of communications.
Technical Details of CVE-2021-25763
The technical aspects include a description of the vulnerability, affected systems, versions, and the exploitation mechanism.
Vulnerability Description
In JetBrains Ktor before version 1.4.2, weak cipher suites were set as default, which could lead to security breaches and data exposure.
Affected Systems and Versions
All versions of JetBrains Ktor before 1.4.2 are affected by this vulnerability, as weak cipher suites were enabled by default across these versions.
Exploitation Mechanism
Attackers could exploit this vulnerability by leveraging the weak cipher suites to intercept and decrypt sensitive information transmitted over insecure connections.
Mitigation and Prevention
To address CVE-2021-25763, immediate steps should be taken along with establishing long-term security practices and ensuring timely patching and updates.
Immediate Steps to Take
Users should update their JetBrains Ktor to version 1.4.2 or later to disable weak cipher suites by default and enhance the security posture of the software.
Long-Term Security Practices
Implementing strong encryption algorithms, monitoring for security updates, and conducting regular security audits are essential for maintaining a secure environment.
Patching and Updates
Stay informed about security bulletins from JetBrains and promptly apply patches and updates to mitigate vulnerabilities and enhance the overall security of the software.