Vulnerability identifier: #VU16572

Vulnerability risk: Low

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-1000864

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Jenkins
Server applications / Application servers

Vendor: Jenkins

Description

The vulnerability allows a remote authenticated attacker to cause DoS condition.

The vulnerability exists due to improper form validation for cron expressions. A remote attacker can send a specially crafted request that submits malicious input and block request handling threads, resulting in a DoS condition.

Mitigation
The vulnerability has been fixed in the versions 2.154, 2.138.4, and 2.150.1.

Vulnerable software versions

Jenkins: 2.19.2 - 2.153

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External links
http://jenkins.io/security/advisory/2018-12-05/

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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.