CVE & CISA-KEV Catalog

CVE-2020-8162

HIGHEPSS 86th pctl
7.5
CVSS v3
NVD

Description

A client side enforcement of server side security vulnerability exists in rails < 5.2.4.2 and rails < 6.0.3.1 ActiveStorage's S3 adapter that allows the Content-Length of a direct file upload to be modified by an end user bypassing upload limits.

How to fix

Remediation Available
railsDebian
Fixed in:2:5.2.4.3+dfsg-1CVE-2020-8162
Fixed in:2:5.2.4.3+dfsg-1CVE-2020-8162
Fixed in:2:5.2.4.3+dfsg-1CVE-2020-8162
Fixed in:2:5.2.4.3+dfsg-1CVE-2020-8162

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Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityHigh
AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Exploit Intelligence

3.03%probability of exploitation in 30 days
86thpercentile

Elevated risk: more likely to be exploited than 86% of all known CVEs.

References

Third-Party Advisory1

Related Vulnerabilities

Other CWE-602 vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2024-23666High7.52.7%-Fix
CVE-2014-2374High7.51.9%--
CVE-2014-2373High7.51.8%--
CVE-2020-24683Critical9.81.5%--
CVE-2022-20658Critical9.61.4%--
CVE-2023-42787Medium6.51.4%--

Common questions

How do I fix CVE-2020-8162?

Upgrade rails on debian 11 to 2:5.2.4.3+dfsg-1 or later.

Is CVE-2020-8162 being actively exploited?

Not that we know of. CVE-2020-8162 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 3.0% is the estimated probability that it will be exploited in the next 30 days. That is higher than 86% of all scored CVEs.

How severe is CVE-2020-8162?

CVE-2020-8162 has a CVSS v3 base score of 7.5, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2020-8162 affect?

Published advisories record a fix for rails (Debian). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.