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TYPO3 CMS vulnerable to Sensitive Information Disclosure via YAML Placeholder Expressions in Site Configuration

Moderate severity GitHub Reviewed Published Dec 13, 2022 in TYPO3/typo3 • Updated Jan 30, 2023

Package

composer typo3/cms (Composer)

Affected versions

>= 10.0.0, < 10.4.33
>= 11.0.0, < 11.5.20
>= 12.0.0, < 12.1.1

Patched versions

10.4.33
11.5.20
12.1.1
composer typo3/cms-core (Composer)
>= 9.0.0, < 9.5.38
>= 10.0.0, < 10.4.33
>= 11.0.0, < 11.5.20
>= 12.0.0, < 12.1.1
9.5.38
10.4.33
11.5.20
12.1.1

Description

Problem

Due to the lack of handling user-submitted YAML placeholder expressions in the site configuration backend module, attackers could expose sensitive internal information, such as system configuration or HTTP request messages of other website visitors.

A valid backend user account having administrator privileges is needed to exploit this vulnerability.

Solution

Update to TYPO3 versions 9.5.38 ELTS, 10.4.33, 11.5.20, 12.1.1 that fix the problem described above.

References

References

@ohader ohader published to TYPO3/typo3 Dec 13, 2022
Published to the GitHub Advisory Database Dec 13, 2022
Reviewed Dec 13, 2022
Published by the National Vulnerability Database Dec 14, 2022
Last updated Jan 30, 2023

Severity

Moderate
5.7
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
High
User interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
Low
Availability
Low
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:L/A:L

Weaknesses

CVE ID

CVE-2022-23504

GHSA ID

GHSA-8w3p-qh3x-6gjr

Source code

Credits

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