Remote code execution in Jenkins Pipeline: AWS Steps plugin
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2020-2166 |
| CWE-ID | CWE-20 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
Pipeline: AWS Steps 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: #VU26396
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-2020-2166
CWE-ID:
CWE-20 - Improper input validation
Exploit availability: No
DescriptionThe 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.
MitigationInstall updates from vendor's website.
Vulnerable software versionsPipeline: AWS Steps: 1.0 - 1.40
External linkshttp://www.openwall.com/lists/oss-security/2020/03/25/2
http://jenkins.io/security/advisory/2020-03-25/#SECURITY-1741
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.
