Skip to content

Path Traversal and Improper Input Validation in Apache Commons IO

Moderate severity GitHub Reviewed Published Apr 26, 2021 to the GitHub Advisory Database • Updated Feb 14, 2024

Package

maven com.cosium.vet:vet (Maven)

Affected versions

>= 1.0, <= 3.22

Patched versions

None
maven com.diamondq.common:common-thirdparty.jcasbin (Maven)
= 1.4.0
None
maven com.liferay:com.liferay.sass.compiler.jsass (Maven)
= 1.0.1
None
maven com.virjar:ratel-api (Maven)
>= 1.0.0, <= 1.3.6
None
maven commons-io:commons-io (Maven)
< 2.7
2.7
maven net.hasor:cobble-lang (Maven)
>= 4.4.1, <= 4.6.2
None
maven org.apache.commons:commons-io (Maven)
= 1.3.2
None
maven org.apache.servicemix.bundles:org.apache.servicemix.bundles.commons-io (Maven)
>= 1.4, <= 1.5
None
maven org.checkerframework.annotatedlib:commons-io (Maven)
>= 2.6, < 2.7
2.7
maven org.smartboot.servlet:servlet-core (Maven)
>= 0.1.9, <= 0.6
None

Description

In Apache Commons IO before 2.7, When invoking the method FileNameUtils.normalize with an improper input string, like "//../foo", or "\..\foo", the result would be the same value, thus possibly providing access to files in the parent directory, but not further above (thus "limited" path traversal), if the calling code would use the result to construct a path value.

References

Published by the National Vulnerability Database Apr 13, 2021
Reviewed Apr 26, 2021
Published to the GitHub Advisory Database Apr 26, 2021
Last updated Feb 14, 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
Low
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:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/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.
(64th percentile)

Weaknesses

Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Learn more on MITRE.

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Learn more on MITRE.

CVE ID

CVE-2021-29425

GHSA ID

GHSA-gwrp-pvrq-jmwv

Source code

No known source code

Credits

Loading Checking history
See something to contribute? Suggest improvements for this vulnerability.