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CVE-2019-11831: Deserialization of Untrusted Data

September 30, 2021

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.

References

  • www.securityfocus.com/bid/108302
  • github.com/TYPO3/phar-stream-wrapper/releases/tag/v2.1.1
  • github.com/TYPO3/phar-stream-wrapper/releases/tag/v3.1.1
  • github.com/advisories/GHSA-xv7v-rf6g-xwrc
  • lists.debian.org/debian-lts-announce/2019/05/msg00029.html
  • lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/65ODQHDHWR74L6TCAPAQR5FQHG6MCXAW/
  • lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6QDJVUJPUW3RZ4746SC6BX4F4T6ZXNBH/
  • lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AUEXS4HRI4XZ2DTZMWAVQBYBTFSJ34AR/
  • lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/E3NUKPG7V4QEM6QXRMHYR4ABFMW5MM2P/
  • lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/U6JX7WR6DPMKCZQP7EYFACYXSGJ3K523/
  • lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/Z246UWBXBEKTQUDTLRJTC7XYBIO4IBE4/
  • nvd.nist.gov/vuln/detail/CVE-2019-11831
  • seclists.org/bugtraq/2019/May/36
  • typo3.org/security/advisory/typo3-psa-2019-007/
  • www.debian.org/security/2019/dsa-4445
  • www.drupal.org/sa-core-2019-007
  • www.synology.com/security/advisory/Synology_SA_19_22

Code Behaviors & Features

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Affected versions

All versions starting from 2.0.0 before 2.1.1, all versions starting from 3.0.0 before 3.1.1

Fixed versions

  • 2.1.1
  • 3.1.1

Solution

Upgrade to versions 2.1.1, 3.1.1 or above.

Impact 9.8 CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Learn more about CVSS

Weakness

  • CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
  • CWE-502: Deserialization of Untrusted Data

Source file

packagist/typo3/phar-stream-wrapper/CVE-2019-11831.yml

Spotted a mistake? Edit the file on GitLab.

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