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Improper Input Validation in Spring Framework

Moderate severity GitHub Reviewed Published Apr 30, 2021 to the GitHub Advisory Database • Updated Aug 13, 2023

Package

maven org.springframework:spring-framework-bom (Maven)

Affected versions

>= 5.2.0, <= 5.2.8
>= 5.1.0, <= 5.1.17
>= 5.0.0, <= 5.0.18
< 4.3.29

Patched versions

5.2.9
5.1.18
5.0.19
4.3.29

Description

In Spring Framework versions 5.2.0 - 5.2.8, 5.1.0 - 5.1.17, 5.0.0 - 5.0.18, 4.3.0 - 4.3.28, and older unsupported versions, the protections against RFD attacks from CVE-2015-5211 may be bypassed depending on the browser used through the use of a jsessionid path parameter.

References

Published by the National Vulnerability Database Sep 19, 2020
Reviewed Apr 27, 2021
Published to the GitHub Advisory Database Apr 30, 2021
Last updated Aug 13, 2023

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
Low
User interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
High
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:L/UI:R/S:C/C:L/I:H/A:N

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(98th percentile)

Weaknesses

Path Traversal: '.../...//'

The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize '.../...//' (doubled triple dot slash) sequences that can resolve to a location that is outside of that directory. Learn more on MITRE.

CVE ID

CVE-2020-5421

GHSA ID

GHSA-rv39-3qh7-9v7w

Source code

No known source code

Credits

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