CVE-2020-8165 — Deserialization of Untrusted Data in Rails

CWE-502 — Deserialization of Untrusted DataCWE-20 — Improper Input Validation10 documents7 sources
Severity
9.8CRITICALNVD
EPSS
90.1%
top 0.41%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
Rubyonrails RailsHttps Github.com Rails RailsDebian Linux+1 more
Timeline
PublishedJun 19

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 vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 3.9 | Impact: 5.9

Affected Packages4 packages

▶NVDrubyonrails/rails6.0.0 — 6.0.3.1+1
▶Debianrubyonrails/rails< 2:5.2.4.3+dfsg-1+3
▶CVEListV5https/github.com_rails_railsFixed in 5.2.4.3, 6.0.3.1
▶NVDopensuse/leap15.1, 15.2+1

Also affects: Debian Linux 10.0, 8.0, 9.0

Patches

Patch: groups.google.com ↗Patch: hackerone.com ↗Patch: groups.google.com ↗

🔴Vulnerability Details

4
CVEList
CVE-2020-8165: A deserialization of untrusted data vulnernerability exists in rails < 5↗2020-06-19
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OSV
CVE-2020-8165: A deserialization of untrusted data vulnernerability exists in rails < 5↗2020-06-19
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OSV
ActiveSupport potentially unintended unmarshalling of user-provided objects in MemCacheStore and RedisCacheStore↗2020-05-26
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GHSA
ActiveSupport potentially unintended unmarshalling of user-provided objects in MemCacheStore and RedisCacheStore↗2020-05-26
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📋Vendor Advisories

2
Red Hat
rubygem-activesupport: potentially unintended unmarshalling of user-provided objects in MemCacheStore and RedisCacheStore↗2020-05-18
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Debian
CVE-2020-8165: rails - A deserialization of untrusted data vulnernerability exists in rails < 5.2.4.3, ...↗2020
▶

💬Community

3
Bugzilla
CVE-2020-8165 rubygem-activesupport: potentially unintended unmarshalling of user-provided objects in MemCacheStore and RedisCacheStore↗2020-06-02
▶
Bugzilla
CVE-2020-8165 rubygem-activesupport: potentially unintended unmarshalling of user-provided objects in MemCacheStore and RedisCacheStore [fedora-all]↗2020-06-02
▶
Bugzilla
CVE-2020-8165 rubygem-activesupport: potentially unintended unmarshalling of user-provided objects in MemCacheStore and RedisCacheStore [epel-7]↗2020-06-02
▶
CVE-2020-8165 — Deserialization of Untrusted Data | cvebase