CVE-2023-37460CWE-22CWE-61

Plexus Archiver vulnerable to Arbitrary File Creation in AbstractUnArchiver

High · published July 25, 2023

CVSS v3.1
8.1
EPSS
2%
Percentile
84.5
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.02482 · 84.5th percentile
Weaknesses
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'); CWE-61 · UNIX Symbolic Link (Symlink) Following
Published
2023-07-25T19:41Z
EPSS history
Timeline
  • 25 JUL 19:41Z
    Plexus Archiver vulnerable to Arbitrary File Creation in AbstractUnArchiver
    cvelistv5