CVE-2020-26228: Cleartext storage of session identifier
TYPO3 is an open source PHP based web content management system. In TYPO3 before versions 9.5.23 and 10.4.10 user session identifiers were stored in cleartext - without processing with additional cryptographic hashing algorithms. This vulnerability cannot be exploited directly and occurs in combination with a chained attack - like for instance SQL injection in any other component of the system. Update to TYPO3 versions 9.5.23 or 10.4.10 that fix the problem described.
Other sources
TYPO3-CORE-SA-2020-011: Cleartext storage of session identifier
User session identifiers were stored in cleartext - without processing of additional cryptographic hashing algorithms. This vulnerability cannot be exploited directly and occurs in combination with a chained attack - like for instance SQL injection in any other component of the system.
Solution Update to TYPO3 versions 9.5.23 or 10.4.10 that fix the problem described.
Credits Thanks to TYPO3 security team member Helmut Hummel who reported this issue and to TYPO3 core & security team members Benni Mack & Oliver Hader as well as TYPO3 contributor Markus Klein who fixed the issue.
— GitHub
Affected Software
Event History
Frequently Asked Questions
What is TYPO3-CORE-SA-2020-011?
TYPO3-CORE-SA-2020-011 is a vulnerability that allows for cleartext storage of session identifiers in TYPO3 CMS.
How does TYPO3-CORE-SA-2020-011 impact my website?
TYPO3-CORE-SA-2020-011 can lead to an attacker being able to intercept and use session identifiers, potentially compromising user sessions.
Which versions of TYPO3 are affected by TYPO3-CORE-SA-2020-011?
TYPO3 versions 8.7.0 to 8.7.38, 9.0.0 to 9.5.23, and 10.0.0 to 10.4.10 are affected by TYPO3-CORE-SA-2020-011.
How do I fix TYPO3-CORE-SA-2020-011?
To fix TYPO3-CORE-SA-2020-011, update TYPO3 to a version that includes the security fix.
Where can I find more information about TYPO3-CORE-SA-2020-011?
More information about TYPO3-CORE-SA-2020-011 can be found on the TYPO3 website at https://typo3.org/security/advisory/typo3-core-sa-2020-011.