Input validation error in Pipeline: AWS Steps - CVE-2020-2166
Published: March 26, 2020
Vulnerability identifier: #VU26396
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2020-2166
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Jenkins
Affected software:
Pipeline: AWS Steps
Pipeline: AWS Steps
Detailed vulnerability 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.
How to mitigate CVE-2020-2166
Install updates from vendor's website.