jenkinsci/ec2-plugin · Security
Lack of SSL/TLS certificate and hostname validation in Amazon EC2 Plugin
- GHSA ID
- GHSA-c89c-pvm7-33wj
- CVE ID
- CVE-2020-2187
- Severity
- medium
- Published
- Updated
- CVSS
- 5.6 · CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
- CVSS v3
- 5.6 · CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
Description
Amazon EC2 Plugin connects to Windows agents via HTTPS.
Amazon EC2 Plugin 1.50.1 and earlier unconditionally accepts self-signed HTTPS certificates and does not perform hostname validation when connecting to Windows agents. This lack of validation could be abused using a man-in-the-middle attack to intercept these connections to build agents.
Amazon EC2 Plugin 1.50.2 by default no longer accepts self-signed HTTPS certificates and performs hostname validation. A new configuration option allows restoring the previous, unsafe behavior. For more information see the plugin documentation.
CWEs
- CWE-295 · Improper Certificate Validation
References
- https://nvd.nist.gov/vuln/detail/CVE-2020-2187 ↗
- https://jenkins.io/security/advisory/2020-05-06/#SECURITY-1528 ↗
- http://www.openwall.com/lists/oss-security/2020/05/06/3 ↗
- https://github.com/jenkinsci/ec2-plugin/commit/4c9f03ae202e4730fd54eda40771fa4d3873e358 ↗
- https://github.com/advisories/GHSA-c89c-pvm7-33wj ↗