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CVE-2020-15099

Exposure of Sensitive Information to an Unauthorized Actor in TYPO3 CMS

Published: Jul 29, 2020Updated: Nov 21, 2024 Sources: CVE List NVD GHSACWE-20
NVD MITRE
8.1CVSSHIGH
EPSS Score
1.8%
Top 24.6%
CISA KEV
Not in KEV
Exploits
2 Known
Remediation
Patch Available

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 the encryptionKey as well as credentials of the database management system being used. In case a database server is directly accessible either via internet or in a shared hosting network, this allows the ability to completely retrieve, manipulate or delete database contents. This includes creating an administration user account - which can be used to trigger remote code execution by injecting custom extensions. This has been patched in versions 9.5.20 and 10.4.6.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-20CWE-200

Affected Products

TYPO3 CMSTYPO3Web & CMS Plugins
typo3/cms-corePackagistOSS Libraries
typo3/cmsPackagistOSS Libraries
typo3typo3Web & CMS Plugins
typo3oss-projectDEWeb & CMS Pluginsaka typo3cms, typo3 cms
packagistpackage-ecosystemOSS Libraries

Attack Graph

Products CVE Techniques Tactics

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Exploitability

2 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

2 techniques
Collection
Initial Access
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References

https://github.com/TYPO3/TYPO3.CMS/security/advisories/GHSA-3x94-fv5h-5q2c
github.com
https://typo3.org/security/advisory/typo3-core-sa-2020-007
typo3.org
https://nvd.nist.gov/vuln/detail/CVE-2020-15099
nvd.nist.gov
and 3 more references View all →

Timeline

Published
Jul 29, 2020
Last Updated
Nov 21, 2024

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