CVE-2017-2599 : Exploit Details and Defense Strategies

Jenkins versions prior to 2.44 and 2.32.2 have a security flaw (SECURITY-321) due to inadequate permission checks, allowing users to overwrite items they lack access to.

Understanding CVE-2017-2599

This CVE involves a vulnerability in Jenkins versions before 2.44 and 2.32.2, impacting user permissions and item access.

What is CVE-2017-2599?

Jenkins versions pre-2.44 and 2.32.2 have a security flaw (SECURITY-321) related to inadequate permission checks.
Users with item creation permissions can unintentionally replace items they lack access to.

The Impact of CVE-2017-2599

CVSS Base Score: 5.4 (Medium Severity)
Attack Vector: Network
Attack Complexity: Low
Confidentiality and Integrity Impact: Low
Privileges Required: Low
No user interaction required

Technical Details of CVE-2017-2599

This section provides in-depth technical insights into the vulnerability.

Vulnerability Description

Jenkins versions before 2.44 and 2.32.2 are susceptible to insufficient permission checks.

Affected Systems and Versions

Affected Product: Jenkins
Vulnerable Versions: 2.44, 2.32.2

Exploitation Mechanism

Users with item creation permissions can exploit the flaw to overwrite existing items they lack access to.

Mitigation and Prevention

Protect your systems from CVE-2017-2599 with these security measures.

Immediate Steps to Take

Upgrade Jenkins to version 2.44 or newer to mitigate the vulnerability.
Restrict user permissions to minimize the risk of unauthorized item overwriting.

Long-Term Security Practices

Regularly review and update user permissions to ensure proper access control.
Monitor Jenkins security advisories for future vulnerabilities.

Patching and Updates

Apply security patches promptly to address known vulnerabilities.