PT-2022-11891 · Totolink · Totolink Ex200

Published 2022-01-04 · Updated 2022-01-12 · CVE-2021-43711

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 TOTOLINK EX200 version 4.0.3c.7646 B20201211

Description The downloadFlile.cgi binary file has a command injection vulnerability when receiving GET parameters. The parameter name can be constructed for unauthenticated command execution.

Recommendations For TOTOLINK EX200 version 4.0.3c.7646 B20201211, as a temporary workaround, consider restricting access to the downloadFlile.cgi binary file until a patch is available. Avoid using constructed parameter names in GET requests to the affected binary file.

Exploit

Fix

Command Injection

Weakness Enumeration

CWE-77

Related Identifiers

CVE-2021-43711

Affected Products

Totolink Ex200

References · 5

• 🔥 https://github.com/doudoudedi/ToTolink_EX200_Cmmand_Execute/blob/main/ToTolink%20EX200%20Comand%20Injection2.md · Exploit
• https://osv.dev/vulnerability/CVE-2021-43711 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-43711 · Security Note
• https://t.me/cibsecurity/34918 · Telegram Post
• https://t.me/cvenotify/25300 · Telegram Post