CVE-2023-42445: Possible local file exfiltration by XML External entity injection
First published: Fri Oct 06 2023(Updated: )
Gradle is a build tool with a focus on build automation and support for multi-language development. In some cases, when Gradle parses XML files, resolving XML external entities is not disabled. Combined with an Out Of Band XXE attack (OOB-XXE), just parsing XML can lead to exfiltration of local text files to a remote server. Gradle parses XML files for several purposes. Most of the time, Gradle parses XML files it generated or were already present locally. Only Ivy XML descriptors and Maven POM files can be fetched from remote repositories and parsed by Gradle. In Gradle 7.6.3 and 8.4, resolving XML external entities has been disabled for all use cases to protect against this vulnerability. Gradle will now refuse to parse XML files that have XML external entities.
Credit: security-advisories@github.com security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Gradle Gradle | <7.6.3 | |
| Gradle Gradle | >=8.0<8.4 | |
| redhat/gradle | <7.6.3 | 7.6.3 |
| redhat/gradle | <8.4 | 8.4 |
| Gradle Gradle | >=8.0.0<8.4.0 |
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Reference Links
- https://github.com/gradle/gradle/releases/tag/v7.6.3
- https://github.com/gradle/gradle/releases/tag/v8.4.0
- https://github.com/gradle/gradle/security/advisories/GHSA-mrff-q8qj-xvg8
- https://security.netapp.com/advisory/ntap-20231110-0006/
- https://access.redhat.com/errata/RHSA-2023:7678
- https://bugzilla.redhat.com/show_bug.cgi?id=2242538
Frequently Asked Questions
What is CVE-2023-42445?
CVE-2023-42445 is a vulnerability in Gradle, a build tool for build automation and multi-language development.
How does CVE-2023-42445 impact Gradle?
CVE-2023-42445 allows for an Out Of Band XXE attack (OOB-XXE) when parsing XML files, which can lead to the exfiltration of local text.
Which versions of Gradle are affected by CVE-2023-42445?
Gradle versions up to and including 7.6.3 and versions between 8.0 and 8.4 (exclusive) are affected by CVE-2023-42445.
How severe is the vulnerability CVE-2023-42445?
The severity of CVE-2023-42445 is medium with a CVSS score of 5.3.
How can I fix CVE-2023-42445 in Gradle?
To fix CVE-2023-42445, you should update Gradle to version 7.6.4 or version 8.4.1 or later.
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