Privilege escalation in Jenkins Health Advisor by CloudBees plugin

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU46883

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-2020-2258

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists due to the affected plugin does not correctly perform a permission check in an HTTP endpoint. A remote authenticated attacker with Overall/Read permission can view an administrative configuration page.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Health Advisor by CloudBees: 1.0 - 3.2.0

External links

http://www.openwall.com/lists/oss-security/2020/09/16/3
http://www.jenkins.io/security/advisory/2020-09-16/#SECURITY-1998

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.