Vulnerability identifier: #VU54057

Vulnerability risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-21662

CWE-ID: CWE-264

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
XebiaLabs XL Deploy
Web applications / Modules and components for CMS

Vendor: Jenkins

Description

The vulnerability allows a remote attacker to gain access to sensitive information on the system.

The vulnerability exists due to the affected plugin does not perform a permission check in a method implementing form validation. A remote authenticated attacker can enumerate credentials IDs of credentials stored in Jenkins.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

XebiaLabs XL Deploy: 3.9.6 - 10.0.1

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External links
http://www.jenkins.io/security/advisory/2021-06-10/#SECURITY-1981
http://www.openwall.com/lists/oss-security/2021/06/10/14

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.