CVE-2018-1000888 – pear/archive_tar

Package

Manager: composer
Name: pear/archive_tar
Vulnerable Version: >=0 <1.4.4

Severity

Level: High

CVSS v3.1: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

EPSS: 0.19859 pctl0.95234

Details

Archive_Tar contains Potential RCE if filename starts with phar:// PEAR Archive_Tar version 1.4.3 and earlier contains a CWE-502, CWE-915 vulnerability in the Archive_Tar class. There are several file operations with `$v_header['filename']` as parameter (such as file_exists, is_file, is_dir, etc). When extract is called without a specific prefix path, we can trigger unserialization by crafting a tar file with `phar://[path_to_malicious_phar_file]` as path. Object injection can be used to trigger destruct in the loaded PHP classes, e.g. the Archive_Tar class itself. With Archive_Tar object injection, arbitrary file deletion can occur because `@unlink($this->_temp_tarname)` is called. If another class with useful gadget is loaded, it may possible to cause remote code execution that can result in files being deleted or possibly modified. This vulnerability appears to have been fixed in 1.4.4.

Metadata

Created: 2023-07-07T13:42:43Z
Modified: 2023-07-07T13:42:43Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/07/GHSA-3q76-jq6m-573p/GHSA-3q76-jq6m-573p.json
CWE IDs: []
Alternative ID: GHSA-3q76-jq6m-573p
Finding: F096
Auto approve: 1