Remote code execution in Jenkins ElasticBox Jenkins Kubernetes CI/CD plugin
| Risk | Medium |
| Patch available | NO |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2020-2211 |
| CWE-ID | CWE-20 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software Subscribe |
ElasticBox Kubernetes CI/CD Web applications / Modules and components for CMS |
| Vendor | Jenkins |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Input validation error
EUVDB-ID: #VU29521
Risk: Medium
CVSSv3.1: 8.3 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:U/RC:C]
CVE-ID: CVE-2020-2211
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the 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 can execute arbitrary code on the target system.
MitigationCybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versionsElasticBox Kubernetes CI/CD: 0.1 - 1.3
External linkshttp://www.openwall.com/lists/oss-security/2020/07/02/7
http://jenkins.io/security/advisory/2020-07-02/#SECURITY-1738
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. However, proof of concept for this vulnerability is available.
