CVE-2020-15098: 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…

PriorityP259high8.8CVSS 3.1

AVNACLPRLUINSUCHIHAH

EPSS

2.23%

80.5th percentile

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.

Affected

8 ranges

Vendor	Product	Version range	Fixed in
typo3	cms	>= 10.0.0 < 10.4.6	10.4.6
typo3	cms	>= 9.0.0 < 9.5.20	9.5.20
typo3	cms-core	>= 10.0.0 < 10.4.6	10.4.6
typo3	cms-core	>= 9.0.0 < 9.5.20	9.5.20
typo3	typo3	>= 10.0.0 < 10.4.6	10.4.6
typo3	typo3	>= 9.0.0 < 9.5.20	9.5.20
typo3	typo3_cms	—	—
typo3	typo3_cms	—	—

CVSS provenance

nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

nvdv2.06.5MEDIUMAV:N/AC:L/Au:S/C:P/I:P/A:P

ghsa8.1HIGH

osv8.1HIGH

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