VulnerabilityModified
CVE-2020-8165
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.
CRITICAL 9.8EPSS 45.7%
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 45.7%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
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 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 45.73% probability · 99th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-502
- Affected
- rubyonrails/rails · debian/debian linux · opensuse/leap
- Source
- support@hackerone.com
References
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00031.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00034.htmlMailing List, Third Party Advisory
- https://groups.google.com/g/rubyonrails-security/c/bv6fW4S0Y1cMailing List, Patch, Third Party Advisory
- https://hackerone.com/reports/413388Exploit, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/06/msg00022.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/07/msg00013.htmlMailing List, Third Party Advisory
- https://weblog.rubyonrails.org/2020/5/18/Rails-5-2-4-3-and-6-0-3-1-have-been-released/Vendor Advisory
- https://www.debian.org/security/2020/dsa-4766Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00031.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00034.htmlMailing List, Third Party Advisory
- https://groups.google.com/g/rubyonrails-security/c/bv6fW4S0Y1cMailing List, Patch, Third Party Advisory
- https://hackerone.com/reports/413388Exploit, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/06/msg00022.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/07/msg00013.htmlMailing List, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20250509-0002/
- https://weblog.rubyonrails.org/2020/5/18/Rails-5-2-4-3-and-6-0-3-1-have-been-released/Vendor Advisory
- https://www.debian.org/security/2020/dsa-4766Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.