Ecosyste.ms: Advisories

Security Advisories: GSA_kwCzR0hTQS1jODljLXB2bTctMzN3as4AAkns

Lack of SSL/TLS certificate and hostname validation in Amazon EC2 Plugin

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.

Permalink: https://github.com/advisories/GHSA-c89c-pvm7-33wj
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS1jODljLXB2bTctMzN3as4AAkns
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: almost 2 years ago
Updated: 4 months ago

CVSS Score: 5.6
CVSS vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

Identifiers: GHSA-c89c-pvm7-33wj, CVE-2020-2187
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

Repository: https://github.com/jenkinsci/ec2-plugin
Blast Radius: 1.0

Affected Packages