#VU29212 Improper Authorization in actionpack - CVE-2020-8185

Vulnerability identifier: #VU29212

Vulnerability risk: High

CVSSv4.0: 8.9 [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/E:P/U:Amber]

CVE-ID: CVE-2020-8185

CWE-ID: CWE-285

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
actionpack
Web applications / Modules and components for CMS

Vendor: Ruby

Description

The vulnerability allows a remote attacker to bypass authorization process.

The vulnerability exists due to improper authorization. A remote attacker can execute any migrations that are pending for a Rails app running in production mode.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

actionpack: 6.0.0 rc1 - 6.0.3.1

---

External links
https://snyk.io/vuln/SNYK-RUBY-ACTIONPACK-572498
https://github.com/rails/rails/commit/661da266b94909574426fd1121ef13b800e01b9a
https://groups.google.com/g/rubyonrails-security/c/pAe9EV8gbM0

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker 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.