CVE-2021-21663

low-risk

Published 2021-06-10

A missing permission check in Jenkins XebiaLabs XL Deploy Plugin 7.5.8 and earlier allows attackers with Overall/Read permission to connect to an attacker-specified URL using attacker-specified credentials IDs obtained through another method, capturing Username/password credentials stored in Jenkins.

Do I need to act?

0.12% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 4.3/10 Medium

NETWORK / LOW complexity

Affected Products (1)

Xebialabs Xl Deploy

Affected Vendors

Jenkins

References (4)

Mailing List http://www.openwall.com/lists/oss-security/2021/06/10/14

Third Party Advisory https://www.jenkins.io/security/advisory/2021-06-10/#SECURITY-1982

Mailing List http://www.openwall.com/lists/oss-security/2021/06/10/14

Third Party Advisory https://www.jenkins.io/security/advisory/2021-06-10/#SECURITY-1982

/ 100

low-risk

Severity 18/34 · Moderate

Exploitability 0/34 · Minimal

Exposure 5/34 · Minimal