Vulnerability · Published Jul 25, 2023 · Assigned by GitHub_M
CVE-2023-37460Plexus Archiver vulnerable to Arbitrary File Creation in AbstractUnArchiver
High 8.1
In plain English
A high-severity path traversal in plexus-archiver from codehaus-plexus. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 2.5% (higher than 85% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.
Official description
Plexis Archiver is a collection of Plexus components to create archives or extract archives to a directory with a unified `Archiver`/`UnArchiver` API. Prior to version 4.8.0, using AbstractUnArchiver for extracting an archive might lead to an arbitrary file creation and possibly remote code execution. When extracting an archive with an entry that already exists in the destination directory as a symbolic link whose target does not exist - the `resolveFile()` function will return the symlink's source instead of its target, which will pass the verification that ensures the file will not be extracted outside of the destination directory. Later `Files.newOutputStream()`, that follows symlinks by default, will actually write the entry's content to the symlink's target. Whoever uses plexus archiver to extract an untrusted archive is vulnerable to an arbitrary file creation and possibly remote code execution. Version 4.8.0 contains a patch for this issue.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Maven | org.codehaus.plexus:plexus-archiver | 4.8.0 | GHSA-wh3p-fphp-9h2m |
| Ubuntu:22.04:LTS | plexus-archiver | no fix listed | UBUNTU-CVE-2023-37460 |
| Ubuntu:24.04:LTS | plexus-archiver | no fix listed | UBUNTU-CVE-2023-37460 |
| Ubuntu:25.10 | plexus-archiver | no fix listed | UBUNTU-CVE-2023-37460 |
| Ubuntu:26.04:LTS | plexus-archiver | no fix listed | UBUNTU-CVE-2023-37460 |
| Ubuntu:26.10 | plexus-archiver | no fix listed | UBUNTU-CVE-2023-37460 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| codehaus-plexus | plexus-archiver | < 4.8.0 |
Weakness: CWE-22, CWE-61 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://github.com/codehaus-plexus/plexus-archiver/security/advisories/GHSA-wh3p-fphp-9h2m x_refsource_CONFIRM
- https://github.com/codehaus-plexus/plexus-archiver/commit/54759839fbdf85caf8442076f001d5fd64e0dcb2 x_refsource_MISC
- https://github.com/codehaus-plexus/plexus-archiver/releases/tag/plexus-archiver-4.8.0 x_refsource_MISC