CVE-2023-32991

Description

Jenkins SAML Single Sign On(SSO) Plugin 2.0.2 and earlier does not perform permission checks in multiple HTTP endpoints. This allows attackers with Overall/Read permission to send an HTTP request to an attacker-specified URL and parse the response as XML, or parse a local file on the Jenkins controller as XML. As the plugin does not configure its XML parser to prevent XML external entity (XXE) attacks, attackers can have Jenkins parse a crafted XML response that uses external entities for extraction of secrets from the Jenkins controller or server-side request forgery. Additionally, these HTTP endpoints do not require POST requests, resulting in a cross-site request forgery (CSRF) vulnerability. SAML Single Sign On(SSO) Plugin 2.1.0 requires POST requests and Overall/Administer permission for the affected HTTP endpoints.

How to fix CVE-2023-32991

To remediate CVE-2023-32991, upgrade the affected package to a fixed version below.

• —upgrade to 2.1.0 or later

Is CVE-2023-32991 being exploited?

Low — EPSS is 0.7%, meaning exploitation activity has not been observed at scale.

Affected packages (1)

• from 0, < 2.1.0

CVSS scores

References (2)

• ADVISORYnvd.nist.gov/vuln/detail/CVE-2023-32991
• WEBwww.jenkins.io/security/advisory/2023-05-16/#SECURITY-2993