Vulnerability 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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Rubyonrails | Rails | < 5.2.4.3 |
| Debian | Debian Linux | 8.0 |
| Opensuse | Leap | 15.1 |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00031.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00034.htmlMailing ListThird Party Advisory
- https://groups.google.com/g/rubyonrails-security/c/bv6fW4S0Y1cMailing ListPatchThird Party Advisory
- https://hackerone.com/reports/413388ExploitPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/06/msg00022.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/07/msg00013.htmlMailing ListThird Party Advisory
- https://weblog.rubyonrails.org/2020/5/18/Rails-5-2-4-3-and-6-0-3-1-have-been-relVendor Advisory
- https://www.debian.org/security/2020/dsa-4766Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00031.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00034.htmlMailing ListThird Party Advisory
- https://groups.google.com/g/rubyonrails-security/c/bv6fW4S0Y1cMailing ListPatchThird Party Advisory
- https://hackerone.com/reports/413388ExploitPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/06/msg00022.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/07/msg00013.htmlMailing ListThird Party Advisory
- https://security.netapp.com/advisory/ntap-20250509-0002/
FAQ
What is CVE-2020-8165?
CVE-2020-8165 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 poten...
How severe is CVE-2020-8165?
CVE-2020-8165 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2020-8165?
Check the references section above for vendor advisories and patch information. Affected products include: Rubyonrails Rails, Debian Debian Linux, Opensuse Leap.