CVE-2017-2598 : Security Advisory and Response

Jenkins before versions 2.44 and 2.32.2 utilized the AES ECB block cipher mode for encrypting secrets without an initialization vector, leading to vulnerabilities. Learn about the impact, technical details, and mitigation steps.

Understanding CVE-2017-2598

Versions of Jenkins prior to 2.44 and 2.32.2 employed the AES ECB block cipher mode for encrypting secrets without an initialization vector, introducing vulnerabilities to Jenkins and stored secrets.

What is CVE-2017-2598?

Jenkins versions 2.44 and 2.32.2 used AES ECB block cipher mode without an IV for secret encryption, posing risks to Jenkins and stored secrets.

The Impact of CVE-2017-2598

CVSS Base Score: 4.3 (Medium Severity)
Attack Vector: Network
Confidentiality Impact: Low
Integrity Impact: None
Privileges Required: Low
No User Interaction Required
Scope: Unchanged
No Availability Impact

Technical Details of CVE-2017-2598

Jenkins vulnerability details and affected systems.

Vulnerability Description

Jenkins versions 2.44 and 2.32.2 used AES ECB block cipher mode without an IV for secret encryption, leading to security vulnerabilities.

Affected Systems and Versions

Affected Product: Jenkins
Vulnerable Versions: 2.44, 2.32.2

Exploitation Mechanism

The lack of an IV in AES ECB mode encryption in Jenkins versions 2.44 and 2.32.2 exposed the system and stored secrets to potential exploitation.

Mitigation and Prevention

Protect your systems from CVE-2017-2598.

Immediate Steps to Take

Update Jenkins to version 2.44 or newer to mitigate the vulnerability.
Monitor security advisories for any patches or updates related to this issue.

Long-Term Security Practices

Implement secure encryption practices with proper initialization vectors.
Regularly review and update encryption mechanisms to adhere to best security practices.

Patching and Updates

Apply patches and updates provided by Jenkins to address the vulnerability.