TYPO3 CMS up to 9.5.16/10.4.1 unserialize dynamically-determined object attributes

Summaryinfo

A vulnerability has been found in TYPO3 CMS up to 9.5.16/10.4.1 and classified as critical. This vulnerability affects the function unserialize. Performing a manipulation results in dynamically-determined object attributes. This vulnerability is known as CVE-2020-11066. Remote exploitation of the attack is possible. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, was found in TYPO3 CMS up to 9.5.16/10.4.1 (Content Management System). This affects the function unserialize. The manipulation with an unknown input leads to a dynamically-determined object attributes vulnerability. CWE is classifying the issue as CWE-915. The product receives input from an upstream component that specifies multiple attributes, properties, or fields that are to be initialized or updated in an object, but it does not properly control which attributes can be modified. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

In TYPO3 CMS greater than or equal to 9.0.0 and less than 9.5.17 and greater than or equal to 10.0.0 and less than 10.4.2, calling unserialize() on malicious user-submitted content can lead to modification of dynamically-determined object attributes and result in triggering deletion of an arbitrary directory in the file system, if it is writable for the web server. It can also trigger message submission via email using the identity of the web site (mail relay). Another insecure deserialization vulnerability is required to actually exploit mentioned aspects. This has been fixed in 9.5.17 and 10.4.2.

The weakness was published 05/14/2020 (GitHub Repository). It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2020-11066 since 03/30/2020. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 9.5.17 or 10.4.2 eliminates this vulnerability.

Similar entries are available at VDB-155236 and VDB-155237. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• Content Management System

Vendor

• TYPO3

Name

• CMS

Version

• 9.5.0
• 9.5.1
• 9.5.2
• 9.5.3
• 9.5.4
• 9.5.5
• 9.5.6
• 9.5.7
• 9.5.8
• 9.5.9
• 9.5.10
• 9.5.11
• 9.5.12
• 9.5.13
• 9.5.14
• 9.5.15
• 9.5.16
• 10.4.0
• 10.4.1

License

• open-source

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

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• 🔍
• 🔍

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Entryinfo

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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