CVE-2020-15099 — Improper Input Validation in Typo3

CWE-20 — Improper Input ValidationCWE-200 — Sensitive Information ExposureCWE-325 — Missing Cryptographic StepCWE-327 — Use of a Broken or Risky Cryptographic AlgorithmCWE-502 — Deserialization of Untrusted Data6 documents4 sources
Severity
8.1HIGHNVD
EPSS
1.2%
top 21.17%
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, in a case where an attacker manages to generate a valid cryptographic message authentication code (HMAC-SHA1) - either by using a different existing vulnerability or in case the internal encryptionKey was exposed - it is possible to retrieve arbitrary files of a TYPO3 installation. This includes the possibility to fetch typo3conf/LocalConfiguration.php, which again contains…

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HExploitability: 2.2 | 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

5
OSV
Exposure of Sensitive Information to an Unauthorized Actor in TYPO3 CMS↗2020-07-29
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CVEList
Exposure of Sensitive Information to an Unauthorized Actor in TYPO3 CMS↗2020-07-29
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GHSA
Exposure of Sensitive Information to an Unauthorized Actor in TYPO3 CMS↗2020-07-29
▶
GHSA
Missing Required Cryptographic Step Leading to Sensitive Information Disclosure in TYPO3 CMS↗2020-07-29
▶
GHSA
Potential Remote Code Execution in TYPO3 with mediace extension↗2020-07-29
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CVE-2020-15099 — Improper Input Validation in Typo3 | cvebase