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.

CVSS v3.0 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3.0 : CRITICAL

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

V2 Legend

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://groups.google.com/g/rubyonrails-security/c/bv6fW4S0Y1c	Mailing List Patch Third Party Advisory
https://hackerone.com/reports/413388	Exploit Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/06/msg00022.html	Mailing 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://lists.debian.org/debian-lts-announce/2020/07/msg00013.html	Mailing List Third Party Advisory
https://www.debian.org/security/2020/dsa-4766	Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00031.html	Mailing List Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00034.html	Mailing List Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:rubyonrails:rails::::::::
	cpe:2.3:a:rubyonrails:rails::::::::

Configuration 2 (hide)

OR	cpe:2.3:o:debian:debian_linux:8.0:::::::*
	cpe:2.3:o:debian:debian_linux:9.0:::::::*
	cpe:2.3:o:debian:debian_linux:10.0:::::::*

Configuration 3 (hide)

OR	cpe:2.3:o:opensuse:leap:15.1:::::::*
	cpe:2.3:o:opensuse:leap:15.2:::::::*

Information

Published : 2020-06-19 11:15

Updated : 2022-05-24 09:45

NVD link : CVE-2020-8165

Mitre link : CVE-2020-8165

JSON object : View

CWE

CWE-502

Deserialization of Untrusted Data

Products Affected

debian

debian_linux

rubyonrails

rails

opensuse

leap

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9.8 /10