Remote code execution in Jenkins Azure Container Service plugin



Published: 2020-03-26
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2020-2168
CWE-ID CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Azure Container Service
Web applications / Modules and components for CMS

Vendor Jenkins

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Input validation error

EUVDB-ID: #VU26398

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-2168

CWE-ID: CWE-20 - Improper Input Validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to the affected software does not configure its YAML parser to prevent the instantiation of arbitrary types. A remote authenticated attacker able to provide YAML input files can execute arbitrary code on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Azure Container Service: 0.1.0 - 1.0.1


CPE2.3 External links

http://www.openwall.com/lists/oss-security/2020/03/25/2
http://jenkins.io/security/advisory/2020-03-25/#SECURITY-1732

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.



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