Vulnerability CVE-2021-21623
Published: 2021-03-18

Description:
An incorrect permission check in Jenkins Matrix Authorization Strategy Plugin 2.6.5 and earlier allows attackers with Item/Read permission on nested items to access them, even if they lack Item/Read permission for parent folders.

Type:

CWE-863

 (Incorrect Authorization)

CVSS2 => (AV:N/AC:L/Au:S/C:P/I:N/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4/10
2.9/10
8/10
Exploit range
Attack complexity
Authentication
Remote
Low
Single time
Confidentiality impact
Integrity impact
Availability impact
Partial
None
None
Affected software
Jenkins -> Matrix authorization strategy 

 References:
http://www.openwall.com/lists/oss-security/2021/03/18/5
https://www.jenkins.io/security/advisory/2021-03-18/#SECURITY-2180
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