CVE-2018-1000888
mediumPriorität · beachten · 52EPSS 0.191 · 97. PerzentilExploit · PoCEURUUSEPSS · bewertet 2026-10-27
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.
cvss
Technischer Schweregrad, 0–10. Eine Zeile je Quelle.
Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · medium–high · 6.8–8.8
schwächen
Die CWE-Schwächeklassen, zu denen dies gehört.
Exploits (1)
Öffentlicher Proof-of-Concept- und Exploit-Code.
- EDB-46108PEAR Archive_Tar < 1.4.4 - PHP Object InjectionPoC · exploit_db
betroffene Produkte (12)
Betroffene Produkte und Versionsbereiche.
Advisories (1)
Hersteller- und Ökosystem-Meldungen dazu.
- GHSA-3q76-jq6m-573pArchive_Tar contains Potential RCE if filename starts with phar://2023-07-07ghsa · osvUS
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.
auch bekannt als (4)
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Referenzen (31)
Externe Belege — Patches, Meldungen, Analysen.
- https://blog.ripstech.com/2018/new-php-exploitation-technique/cnnvd
- https://cdn2.hubspot.net/hubfs/3853213/us-18-Thomas-It%27s-A-PHP-Unserialization-Vulnerability-Jim-But-Not-As-We-....pdfcnnvd
- https://lists.debian.org/debian-lts-announce/2019/02/msg00020.htmlcnnvd
- https://lists.debian.org/debian-lts-announce/2019/02/msg00032.htmlcnnvd
- https://packetstormsecurity.com/files/158086/Gentoo-Linux-Security-Advisory-202006-14.htmlcnnvd
- https://pear.php.net/bugs/bug.php?id=23782cnnvd
- https://pear.php.net/package/Archive_Tar/download/cnnvd
- https://security.gentoo.org/glsa/202006-14cnnvd
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