GHSA-954j-f27r-cj52
Cleartext storage of session identifier
Quick fix
GHSA-954j-f27r-cj52 — typo3/cms-core: upgrade to the fixed version with the command below.
composer require typo3/cms-core:^9.5.23Details
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.
Are you affected?
Enter the version of the package you're using.
Affected packages
9.0.0Fixed in: 9.5.23composer require typo3/cms-core:^9.5.2310.0.0Fixed in: 10.4.10composer require typo3/cms-core:^10.4.108.7.0Fixed in: 8.7.38composer require typo3/cms-core:^8.7.38References
- https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-954j-f27r-cj52[WEB]
- https://nvd.nist.gov/vuln/detail/CVE-2020-26228[ADVISORY]
- https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms-core/CVE-2020-26228.yaml[WEB]
- https://github.com/FriendsOfPHP/security-advisories/blob/master/typo3/cms/CVE-2020-26228.yaml[WEB]
- https://typo3.org/security/advisory/typo3-core-sa-2020-011[WEB]