CVE-2019-11831 Information

Description

The PharStreamWrapper (aka phar-stream-wrapper) package 2.x before 2.1.1 and 3.x before 3.1.1 for TYPO3 does not prevent directory traversal which allows attackers to bypass a deserialization protection mechanism as demonstrated by a phar:///path/bad.phar/../good.phar URL.

CVSS Vector

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

Reference

http://www.securityfocus.com/bid/108302 https://github.com/TYPO3/phar-stream-wrapper/releases/tag/v2.1.1 https://github.com/TYPO3/phar-stream-wrapper/releases/tag/v3.1.1 https://lists.debian.org/debian-lts-announce/2019/05/msg00029.html https://lists.fedoraproject.org/archives/list/[email protected]/message/65ODQHDHWR74L6TCAPAQR5FQHG6MCXAW/ https://lists.fedoraproject.org/archives/list/[email protected]/message/6QDJVUJPUW3RZ4746SC6BX4F4T6ZXNBH/ https://lists.fedoraproject.org/archives/list/[email protected]/message/AUEXS4HRI4XZ2DTZMWAVQBYBTFSJ34AR/ https://lists.fedoraproject.org/archives/list/[email protected]/message/E3NUKPG7V4QEM6QXRMHYR4ABFMW5MM2P/ https://lists.fedoraproject.org/archives/list/[email protected]/message/U6JX7WR6DPMKCZQP7EYFACYXSGJ3K523/ https://lists.fedoraproject.org/archives/list/[email protected]/message/Z246UWBXBEKTQUDTLRJTC7XYBIO4IBE4/ https://seclists.org/bugtraq/2019/May/36 https://typo3.org/security/advisory/typo3-psa-2019-007/ https://www.debian.org/security/2019/dsa-4445 https://www.drupal.org/sa-core-2019-007 https://www.synology.com/security/advisory/Synology_SA_19_22

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8