CVE-2021-21339
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.92%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
TYPO3 is an open source PHP based web content management system. In TYPO3 before versions 6.2.57, 7.6.51, 8.7.40, 9.5.25, 10.4.14, 11.1.1 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. This is fixed in versions 6.2.57, 7.6.51, 8.7.40, 9.5.25, 10.4.14, 11.1.1.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 0.92% probability · 58th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-312
- Affected
- typo3/typo3
- Source
- security-advisories@github.com
References
- https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-qx3w-4864-94chThird Party Advisory
- https://packagist.org/packages/typo3/cms-coreRelease Notes, Third Party Advisory
- https://typo3.org/security/advisory/typo3-core-sa-2021-006Vendor Advisory
- https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-qx3w-4864-94chThird Party Advisory
- https://packagist.org/packages/typo3/cms-coreRelease Notes, Third Party Advisory
- https://typo3.org/security/advisory/typo3-core-sa-2021-006Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.