Code Injection in ActionView - CVE-2020-8163
Published: May 26, 2020 / Updated: July 1, 2021
Vulnerability identifier: #VU28242
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-8163
CWE-ID: CWE-94
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to improper input validation. A remote attacker can control the "locals" argument of a "render" call and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
ActionView
How to mitigate CVE-2020-8163
Install updates from vendor's website.
ActionView - update to 5.0.1
Links to Public Exploits and PoC-codes
- Exploit #6502 - CVE-2020-8163 (CVE-2020-8163 - Remote code execution of user-provided local names in Rails) (July 1, 2021)
- Exploit #5690 - Rails 5.0.1 - Remote Code Execution (June 17, 2021)
- Exploit #3532 - CVE-2020-8163 (Enviroment and exploit to rce test) (July 20, 2020)
- Exploit #3465 - CVE-2020-8163 (CVE-2020-8163 - Remote code execution of user-provided local names in Rails) (July 15, 2020)