CVE-2025-60687: lr1200gb Command Injection — Exploit

Description

An unauthenticated command injection vulnerability exists in the ToToLink LR1200GB Router firmware V9.1.0u.6619_B20230130 within the cstecgi.cgi binary (sub_41EC68 function). The binary reads the "imei" parameter from a web request and verifies only that it is 15 characters long. The parameter is then directly inserted into a system command using sprintf() and executed with system(). Maliciously crafted IMEI input can execute arbitrary commands on the router without authentication.

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CVSS v3.1 Score

6.5

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Weakness Type (CWE)

CWE-77 CWE-77

Affected Products

Vendor	Product	Versions
totolink	lr1200gb_firmware	All
totolink	lr1200gb	All

References

Exploits

https://github.com/yifan20020708/SGTaint-0-day/blob/main/ToToLink/ToToLink-LR1200GB/CVE-2025-60687.md

Other References

http://totolink.com https://www.totolink.net/

Frequently Asked Questions

What is CVE-2025-60687? +

An unauthenticated command injection vulnerability exists in the ToToLink LR1200GB Router firmware V9.1.0u.6619_B20230130 within the cstecgi.cgi binary (sub_41EC68 function). The binary reads the "imei" parameter from a web request and verifies only that it is 15 characters long. The parameter is then directly inserted into a system command using sprintf() and executed with system(). Maliciously crafted IMEI input can execute arbitrary commands on the router without authentication. It has a CVSS v3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2025-60687? +

CVE-2025-60687 has a CVSS v3.1 score of 6.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-60687? +

CVE-2025-60687 affects products from totolink, specifically: lr1200gb, lr1200gb_firmware. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-60687? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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