Vulnerability Monitor

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CVE-2021-21639

Jenkins 2.286 and earlier, LTS 2.277.1 and earlier does not validate the type of object created after loading the data submitted to the `config.xml` REST API endpoint of a node, allowing attackers with Computer/Configure permission to replace a node with one of a different type.

Published

2021-04-07T14:15:16.890

Last Modified

2024-11-21T05:48:44.890

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 4.3 (MEDIUM)

CVSSv2 Vector

AV:N/AC:L/Au:S/C:N/I:P/A:N

Access Vector: NETWORK
Access Complexity: LOW
Authentication: SINGLE
Confidentiality Impact: NONE
Integrity Impact: PARTIAL
Availability Impact: NONE

Exploitability Score

8.0

Impact Score

2.9

Weaknesses

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	jenkins	jenkins	≤ 2.277.1	Yes
Application	jenkins	jenkins	≤ 2.286	Yes

References

http://www.openwall.com/lists/oss-security/2021/04/07/2 Mailing List, Third Party Advisory ([email protected])
https://www.jenkins.io/security/advisory/2021-04-07/#SECURITY-1721 Vendor Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2021/04/07/2 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.jenkins.io/security/advisory/2021-04-07/#SECURITY-1721 Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)