CVE-2022-36937 : Vulnerability Insights and Analysis
Learn about CVE-2022-36937 impacting HHVM versions below 4.173.0, exploiting TLS 1.0 vulnerabilities, and steps to prevent exploitation by upgrading to secure versions.
This article provides detailed information about CVE-2022-36937, a vulnerability affecting HHVM versions prior to 4.173.0 that use TLS 1.0 for secure connections when handling tls:// URLs in the stream extension.
Understanding CVE-2022-36937
HHVM 4.172.0 and all earlier versions utilize TLS 1.0 for secure connections with tls:// URLs in the stream extension, which has known vulnerabilities and is deprecated.
What is CVE-2022-36937?
Applications using stream_socket_server or stream_socket_client functions with a URL starting with tls:// are impacted by this vulnerability.
The Impact of CVE-2022-36937
The use of TLS 1.0 in HHVM versions prior to 4.173.0 poses security risks due to the deprecated and vulnerable nature of TLS 1.0.
Technical Details of CVE-2022-36937
Vulnerability Description
HHVM versions prior to 4.173.0 that use TLS 1.0 for secure connections with tls:// URLs are susceptible to security risks.
Affected Systems and Versions
- HHVM 4.172.0
- HHVM 4.171.0
- HHVM 4.170.0
- HHVM 4.169.0
- HHVM 4.154.0
- HHVM 4.153.4
Exploitation Mechanism
Applications that make use of stream_socket_server or stream_socket_client functions with tls:// URLs may be exploited due to the insecure use of TLS 1.0.
Mitigation and Prevention
Immediate Steps to Take
To mitigate the vulnerability, update HHVM to version 4.173.0 or later, which replaces TLS 1.0 with the more secure TLS 1.3.
Long-Term Security Practices
Regularly update HHVM to the latest versions and avoid the use of deprecated and vulnerable protocols like TLS 1.0.
Patching and Updates
Refer to the following sources for security updates and patches: