Vulnerability Description
In TYPO3 CMS greater than or equal to 9.0.0 and less than 9.5.20, and greater than or equal to 10.0.0 and less than 10.4.6, it has been discovered that an internal verification mechanism can be used to generate arbitrary checksums. This allows to inject arbitrary data having a valid cryptographic message authentication code (HMAC-SHA1) and can lead to various attack chains including potential privilege escalation, insecure deserialization & remote code execution. The overall severity of this vulnerability is high based on mentioned attack chains and the requirement of having a valid backend user session (authenticated). This has been patched in versions 9.5.20 and 10.4.6.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Typo3 | Typo3 | >= 9.0.0, < 9.5.20 |
Related Weaknesses (CWE)
References
- https://github.com/TYPO3/TYPO3.CMS/commit/85d3e70dff35a99ef53f4b561114acfa9e5c47Broken Link
- https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-m5vr-3m74-jwxpThird Party Advisory
- https://typo3.org/security/advisory/typo3-core-sa-2016-013Vendor Advisory
- https://typo3.org/security/advisory/typo3-core-sa-2020-008Vendor Advisory
- https://github.com/TYPO3/TYPO3.CMS/commit/85d3e70dff35a99ef53f4b561114acfa9e5c47Broken Link
- https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-m5vr-3m74-jwxpThird Party Advisory
- https://typo3.org/security/advisory/typo3-core-sa-2016-013Vendor Advisory
- https://typo3.org/security/advisory/typo3-core-sa-2020-008Vendor Advisory
FAQ
What is CVE-2020-15098?
CVE-2020-15098 is a vulnerability with a CVSS score of 8.8 (HIGH). In TYPO3 CMS greater than or equal to 9.0.0 and less than 9.5.20, and greater than or equal to 10.0.0 and less than 10.4.6, it has been discovered that an internal verification mechanism can be used t...
How severe is CVE-2020-15098?
CVE-2020-15098 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-15098?
Check the references section above for vendor advisories and patch information. Affected products include: Typo3 Typo3.