Candidate: CVE-2020-15098 PublicDate: 2020-07-29 17:15:00 UTC References: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15098 https://github.com/TYPO3/TYPO3.CMS/commit/85d3e70dff35a99ef53f4b561114acfa9e5c47e1 https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-m5vr-3m74-jwxp https://typo3.org/security/advisory/typo3-core-sa-2016-013 https://typo3.org/security/advisory/typo3-core-sa-2020-008 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. Ubuntu-Description: Notes: Mitigation: Bugs: Priority: untriaged Discovered-by: Assigned-to: CVSS: nvd: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H [8.8 HIGH] Patches_typo3-src: upstream_typo3-src: needs-triage precise_typo3-src: ignored (out of standard support) precise/esm_typo3-src: DNE trusty_typo3-src: ignored (out of standard support) trusty/esm_typo3-src: DNE xenial_typo3-src: DNE bionic_typo3-src: DNE focal_typo3-src: DNE devel_typo3-src: DNE