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Apache Struts Improper Input Validation vulnerability

Moderate severity GitHub Reviewed Published Oct 16, 2018 to the GitHub Advisory Database • Updated Jan 4, 2024

Package

maven org.apache.struts:struts2-core (Maven)

Affected versions

>= 2.5.0, < 2.5.12

Patched versions

2.5.12

Description

If an application allows enter an URL in a form field and built-in URLValidator is used, it is possible to prepare a special URL which will be used to overload server process when performing validation of the URL. Solution is to upgrade to Apache Struts version 2.5.12.

References

Published to the GitHub Advisory Database Oct 16, 2018
Reviewed Jun 16, 2020
Last updated Jan 4, 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
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:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS score

2.340%
(89th percentile)

Weaknesses

CVE ID

CVE-2017-7672

GHSA ID

GHSA-9gp7-jvm2-r4mx

Source code

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