PT-2023-11491 · China Mobile · Chinamobile Plc Wireless Router

Sergiu Sechel · Published 2023-01-25 · Updated 2025-04-01 · CVE-2020-18331

Positive Technologies (AI Summary)

CVSS v3.1

9.1

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions ChinaMobile PLC Wireless Router model GPN2.4P21-C-CN version W2000EN-01

Description The issue is related to a directory traversal vulnerability. It can be exploited via the getpage parameter to the "/cgi-bin/webproc" API endpoint.

Recommendations For ChinaMobile PLC Wireless Router model GPN2.4P21-C-CN version W2000EN-01, avoid using the getpage parameter in the "/cgi-bin/webproc" API endpoint until the issue is resolved. Restrict access to the "/cgi-bin/webproc" endpoint to minimize the risk of exploitation.

Exploit

Fix

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

CVE-2020-18331

Affected Products

Chinamobile Plc Wireless Router

References · 6

• 🔥 https://github.com/cybertoxin/CVEs/blob/main/CVE_2020_18331.md · Exploit
• 🔥 https://medium.com/@SergiuSechel/insecure-permissions-and-multiple-vulnerabilities-in-chinamobile-plc-wireless-routers-leaves-more-d3eb9ff70d24 · Exploit
• https://osv.dev/vulnerability/CVE-2020-18331 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-18331 · Security Note
• https://t.me/cvenotify/117278 · Telegram Post
• https://medium.com/%40SergiuSechel/insecure-permissions-and-multiple-vulnerabilities-in-chinamobile-plc-wireless-routers-leaves-more-d3eb9ff70d24 · Note