CVE-2020-8165

Public Exploit

Description

A deserialization of untrusted data vulnernerability exists in rails < 5.2.4.3, rails < 6.0.3.1 that can allow an attacker to unmarshal user-provided objects in MemCacheStore and RedisCacheStore potentially resulting in an RCE.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 91.03% Top 5%
Vendor Advisory debian.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory rubyonrails.org
Affected: n/a https://github.com/rails/rails
Published at:
Updated at:

References

Link Tags
https://hackerone.com/reports/413388 patch third party advisory exploit
https://groups.google.com/g/rubyonrails-security/c/bv6fW4S0Y1c patch mailing list third party advisory
https://lists.debian.org/debian-lts-announce/2020/06/msg00022.html third party advisory mailing list
https://weblog.rubyonrails.org/2020/5/18/Rails-5-2-4-3-and-6-0-3-1-have-been-released/ vendor advisory
https://lists.debian.org/debian-lts-announce/2020/07/msg00013.html third party advisory mailing list
https://www.debian.org/security/2020/dsa-4766 third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00031.html vendor advisory mailing list third party advisory
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00034.html vendor advisory mailing list third party advisory
https://security.netapp.com/advisory/ntap-20250509-0002/

Frequently Asked Questions

What is the severity of CVE-2020-8165?
CVE-2020-8165 has been scored as a critical severity vulnerability.
How to fix CVE-2020-8165?
To fix CVE-2020-8165, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-8165 being actively exploited in the wild?
It is possible that CVE-2020-8165 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~91% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2020-8165?
CVE-2020-8165 affects n/a https://github.com/rails/rails.
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