Skip to content

Class destructors causing side-effects when being unserialized in TYPO3 CMS

High severity GitHub Reviewed Published May 12, 2020 in TYPO3/typo3 • Updated Feb 7, 2024

Package

composer typo3/cms (Composer)

Affected versions

>= 10.0.0, < 10.4.2
>= 9.0.0, < 9.5.17

Patched versions

10.4.2
9.5.17
composer typo3/cms-core (Composer)
>= 9.0.0, < 9.5.17
>= 10.0.0, < 10.4.2
9.5.17
10.4.2

Description

Calling unserialize() on malicious user-submitted content can result in the following scenarios:

  • trigger deletion of arbitrary directory in file system (if writable for web server)
  • trigger message submission via email using identity of web site (mail relay)

Another insecure deserialization vulnerability is required to actually exploit mentioned aspects.

Update to TYPO3 versions 9.5.17 or 10.4.2 that fix the problem described.

References

References

@ohader ohader published to TYPO3/typo3 May 12, 2020
Reviewed May 13, 2020
Published to the GitHub Advisory Database May 13, 2020
Published by the National Vulnerability Database May 14, 2020
Last updated Feb 7, 2024

Severity

High
8.7
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
High
Privileges required
None
User interaction
None
Scope
Changed
Confidentiality
None
Integrity
High
Availability
High
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:H

Weaknesses

CVE ID

CVE-2020-11066

GHSA ID

GHSA-2rxh-h6h9-qrqc

Source code

No known source code

Credits

Checking history
See something to contribute? Suggest improvements for this vulnerability.