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Insufficient Verification of Data Authenticity in Apache Tomcat

Moderate severity GitHub Reviewed Published May 14, 2022 to the GitHub Advisory Database • Updated Feb 22, 2024

Package

maven org.apache.tomcat:tomcat (Maven)

Affected versions

>= 9.0.0.M1, <= 9.0.0.M21
>= 8.5.0, <= 8.5.15
>= 8.0.0.RC1, <= 8.0.44
>= 7.0.41, <= 7.0.78

Patched versions

9.0.0.M22
8.5.16
8.0.45
7.0.79

Description

The CORS Filter in Apache Tomcat 9.0.0.M1 to 9.0.0.M21, 8.5.0 to 8.5.15, 8.0.0.RC1 to 8.0.44 and 7.0.41 to 7.0.78 did not add an HTTP Vary header indicating that the response varies depending on Origin. This permitted client and server side cache poisoning in some circumstances.

References

Published by the National Vulnerability Database Aug 11, 2017
Published to the GitHub Advisory Database May 14, 2022
Reviewed Jun 30, 2022
Last updated Feb 22, 2024

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

EPSS score

0.276%
(68th percentile)

Weaknesses

CVE ID

CVE-2017-7674

GHSA ID

GHSA-73rx-3f9r-x949

Source code

Credits

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