QID 730615

Date Published: 2022-09-29

QID 730615: Jenkins Denial of Service (DoS) Vulnerability (Jenkins Security Advisory 2022-09-09)

Jenkins is an open-source automation server written in Java. Jenkins helps to automate the non-human part of the software development process, with continuous integration and facilitating technical aspects of continuous delivery.

This vulnerability allows unauthenticated attackers to make the Jenkins UI unresponsive by exploiting Jettys handling of invalid HTTP/2 requests, causing a denial of service.

Affected Versions:
Jenkins weekly up to and including 2.362
Jenkins LTS up to and including LTS 2.346.3

Fixed Versions:
Jenkins weekly should be updated to version 2.363
Jenkins LTS should be updated to version 2.361.1

QID Detection Logic(Unauthenticated):
This QID checks for vulnerable version by sending a crafted GET request to Jenkins. This QID also detects the vulnerable version from login page or HTTP header.

A successful exploit could be resulting in a denial of service (DoS).

CVSS V3 rated as High - 7.5 severity.

CVSS V2 rated as Medium - 5 severity.

Solution

Customers are advised to upgrade to latest Jenkins version
For further details refer to Jenkins Security Advisory 2022-09-09

Vendor References

Jenkins Security Advisory 2022-09-09 - www.jenkins.io/security/advisory/2022-09-09/

CVEs related to QID 730615

CVE-2022-2048 |

Software Advisories

Advisory ID	Software	Component	Link
Jenkins Security Advisory 2022-09-09			www.jenkins.io/security/advisory/2022-09-09/

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