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Information Disclosure in Apache Tomcat

Moderate severity GitHub Reviewed Published May 13, 2021 to the GitHub Advisory Database • Updated Mar 11, 2024

Package

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

Affected versions

>= 10.0.0-M1, <= 10.0.0-M9
>= 9.0.0, < 9.0.40
>= 8.5.0, < 8.5.60
>= 7.0.0, < 7.0.107

Patched versions

10.0.0-M10
9.0.40
8.5.60
7.0.107

Description

When serving resources from a network location using the NTFS file system, Apache Tomcat versions 10.0.0-M1 to 10.0.0-M9, 9.0.0.M1 to 9.0.39, 8.5.0 to 8.5.59 and 7.0.0 to 7.0.106 were susceptible to JSP source code disclosure in some configurations. The root cause was the unexpected behaviour of the JRE API File.getCanonicalPath() which in turn was caused by the inconsistent behaviour of the Windows API (FindFirstFileW) in some circumstances.

References

Published by the National Vulnerability Database Jan 14, 2021
Reviewed Apr 6, 2021
Published to the GitHub Advisory Database May 13, 2021
Last updated Mar 11, 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
High
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
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:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS score

0.232%
(62nd percentile)

Weaknesses

CVE ID

CVE-2021-24122

GHSA ID

GHSA-2rvv-w9r2-rg7m

Source code

Credits

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