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Apache Tomcat - Fix for CVE-2023-24998 was incomplete

High severity GitHub Reviewed Published Jul 6, 2023 to the GitHub Advisory Database • Updated Apr 24, 2024

Package

maven org.apache.tomcat.embed:tomcat-embed-core (Maven)

Affected versions

>= 11.0.0-M2, < 11.0.0-M5
>= 10.1.5, < 10.1.8
>= 9.0.71, < 9.0.74

Patched versions

11.0.0-M5
10.1.8
9.0.74
maven org.apache.tomcat:tomcat-coyote (Maven)
>= 8.5.85, < 8.5.88
8.5.88

Description

The fix for CVE-2023-24998 was incomplete. If non-default HTTP connector settings were used such that the maxParameterCount could be reached using query string parameters and a request was submitted that supplied exactly maxParameterCount parameters in the query string, the limit for uploaded request parts could be bypassed with the potential for a denial of service to occur.

References

Published by the National Vulnerability Database May 22, 2023
Published to the GitHub Advisory Database Jul 6, 2023
Reviewed Jul 6, 2023
Last updated Apr 24, 2024

Severity

High

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
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

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

EPSS score

0.890%
(83rd percentile)

Weaknesses

CVE ID

CVE-2023-28709

GHSA ID

GHSA-cx6h-86xw-9x34

Source code

Credits

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