CVE-2020-15086
In TYPO3 installations with the "mediace" extension from version 7.6.2 and before version 7.6.5, it has been discovered that an internal verification mechanism can be used to generate arbitrary checksums.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.72%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In TYPO3 installations with the "mediace" extension from version 7.6.2 and before version 7.6.5, it has been discovered that an internal verification mechanism can be used to generate arbitrary checksums. The allows to inject arbitrary data having a valid cryptographic message authentication code and can lead to remote code execution. To successfully exploit this vulnerability, an attacker must have access to at least one `Extbase` plugin or module action in a TYPO3 installation. This is fixed in version 7.6.5 of the "mediace" extension for TYPO3.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.72% probability · 85th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20, CWE-200, CWE-325, CWE-502
- Affected
- typo3/mediace
- Source
- security-advisories@github.com
References
- https://github.com/FriendsOfTYPO3/mediace/commit/fa29ffd3e8b275782a8600d2406e1b1e5e16ae75Patch, Third Party Advisory
- https://github.com/FriendsOfTYPO3/mediace/pull/31Patch, Third Party Advisory
- https://github.com/FriendsOfTYPO3/mediace/security/advisories/GHSA-4h44-w6fm-548gExploit, Patch, Third Party Advisory
- https://github.com/FriendsOfTYPO3/mediace/commit/fa29ffd3e8b275782a8600d2406e1b1e5e16ae75Patch, Third Party Advisory
- https://github.com/FriendsOfTYPO3/mediace/pull/31Patch, Third Party Advisory
- https://github.com/FriendsOfTYPO3/mediace/security/advisories/GHSA-4h44-w6fm-548gExploit, Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.