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CVE-2021-20837

Published: Oct 26, 2021Updated: Nov 21, 2024 Sources: CVE List NVDCWE-78
NVD MITRE
9.8CVSSCRITICAL
EPSS Score
88.1%
Top 0.3%
CISA KEV
Not in KEV
Exploits
2 Known
Remediation
Patch Available
Am I actually vulnerable?1 Nuclei template available — see how to check your systems. How to verify

Description

Movable Type 7 r.5002 and earlier (Movable Type 7 Series), Movable Type 6.8.2 and earlier (Movable Type 6 Series), Movable Type Advanced 7 r.5002 and earlier (Movable Type Advanced 7 Series), Movable Type Advanced 6.8.2 and earlier (Movable Type Advanced 6 Series), Movable Type Premium 1.46 and earlier, and Movable Type Premium Advanced 1.46 and earlier allow remote attackers to execute arbitrary OS commands via unspecified vectors. Note that all versions of Movable Type 4.0 or later including unsupported (End-of-Life, EOL) versions are also affected by this vulnerability.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
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-78

Affected Products

Movable TypeSix Apart Ltd.
On-premWeb App
Web & CMS Plugins / cms-core
movable typesixapart
On-prem
Web & CMS Plugins / cms-core
six apart ltd.commercialUSWeb & CMS Pluginsaka movable type, movable type advanced, movable type cloud edition
sixapartcommercialWeb & CMS Pluginsaka movable type, movabletype, six apart

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

1 technique
Execution
View detailed technique mapping

References

https://movabletype.org/news/2021/10/mt-782-683-released.html
movabletype.org
https://jvn.jp/en/jp/JVN41119755/index.html
jvn.jp
http://packetstormsecurity.com/files/164705/Movable-Type-7-r.5002-XMLRPC-API-Remote-Command-Injection.html
packetstormsecurity.com
and 1 more references View all →

Timeline

Published
Oct 26, 2021
Last Updated
Nov 21, 2024

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