CVE-2020-15098 — Improper Input Validation in Typo3

CWE-20 — Improper Input ValidationCWE-200 — Sensitive Information ExposureCWE-325 — Missing Cryptographic StepCWE-502 — Deserialization of Untrusted DataCWE-327 — Use of a Broken or Risky Cryptographic Algorithm4 documents4 sources
Severity
8.8HIGHNVD
GHSA8.1OSV8.1
EPSS
2.4%
top 15.06%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
Typo3Typo3 CMSTypo3 Cms-core+1 more
Timeline
PublishedJul 29

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 vul…

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 2.8 | Impact: 5.9

Affected Packages4 packages

▶Packagisttypo3/cms10.0.0 — 10.4.6+1
▶NVDtypo3/typo39.0.0 — 9.5.20+1
▶Packagisttypo3/cms-core9.0.0 — 9.5.20+1
▶CVEListV5typo3/typo3_cms>= 10.0.0, 10.4.6, >= 9.0.0, < 9.5.20+1

🔴Vulnerability Details

3
OSV
Missing Required Cryptographic Step Leading to Sensitive Information Disclosure in TYPO3 CMS↗2020-07-29
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GHSA
Missing Required Cryptographic Step Leading to Sensitive Information Disclosure in TYPO3 CMS↗2020-07-29
▶
CVEList
Missing Required Cryptographic Step Leading to Sensitive Information Disclosure in TYPO3 CMS↗2020-07-29
▶
CVE-2020-15098 — Improper Input Validation in Typo3 | cvebase