PT-2021-14281 · Unknown · Movable Type+3

Daiji Hirata · Published 2021-10-26 · Updated 2022-03-18 · CVE-2021-20837

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions: Movable Type versions 7 r.5002 and earlier Movable Type versions 6.8.2 and earlier Movable Type Advanced versions 7 r.5002 and earlier Movable Type Advanced versions 6.8.2 and earlier Movable Type Premium version 1.46 and earlier Movable Type Premium Advanced version 1.46 and earlier Movable Type versions 4.0 and later

Description: The issue allows remote attackers to execute arbitrary OS commands via unspecified vectors. All versions of Movable Type 4.0 or later, including unsupported versions, are affected.

Recommendations: For Movable Type versions 7 r.5002 and earlier, update to a version later than r.5002. For Movable Type versions 6.8.2 and earlier, update to a version later than 6.8.2. For Movable Type Advanced versions 7 r.5002 and earlier, update to a version later than r.5002. For Movable Type Advanced versions 6.8.2 and earlier, update to a version later than 6.8.2. For Movable Type Premium version 1.46 and earlier, update to a version later than 1.46. For Movable Type Premium Advanced version 1.46 and earlier, update to a version later than 1.46. For Movable Type versions 4.0 and later, ensure you are running the latest supported version.

Exploit

Fix

RCE

OS Command Injection

Weakness Enumeration

CWE-78

Related Identifiers

CVE-2021-20837

Affected Products

Movable Type

Movable Type Advanced

Movable Type Premium

Movable Type Premium Advanced

References · 21

• 🔥 https://github.com/orangmuda/CVE-2021-20837 · Exploit
• 🔥 https://github.com/byteofandri/CVE-2021-20837 · Exploit
• 🔥 https://github.com/rakhanobe/CVE-2021-20837 · Exploit
• 🔥 https://github.com/ghost-nemesis/cve-2021-20837-poc · Exploit
• 🔥 https://github.com/oxctdev/CVE-2021-20837 · Exploit
• 🔥 https://github.com/thomsdev/CVE-2021-20837 · Exploit
• 🔥 https://github.com/byteofjoshua/CVE-2021-20837 · Exploit
• 🔥 https://github.com/onsecuredev/CVE-2021-20837 · Exploit
• 🔥 https://exploit-db.com/exploits/50464 · Exploit
• 🔥 http://packetstormsecurity.com/files/164705/Movable-Type-7-r.5002-XMLRPC-API-Remote-Command-Injection.html · Exploit
• https://movabletype.org/news/2021/10/mt-782-683-released.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-20837 · Security Note
• https://osv.dev/vulnerability/CVE-2021-20837 · Vendor Advisory
• http://packetstormsecurity.com/files/164818/Movable-Type-7-r.5002-XMLRPC-API-Remote-Command-Injection.html · Note
• https://t.me/defcon_news/98132 · Telegram Post