Comfast CF-E4: Unauthenticated Remote Command Injection via HTTP Request

Summary

A security flaw in Comfast CF-E4 allows an attacker to execute unauthorized commands on the device by sending a malicious request, potentially allowing them to access or manipulate sensitive data. This vulnerability is publicly known and can be exploited remotely, so it's essential to update the device to the latest version or take other necessary precautions to prevent potential exploitation. Since the vendor has not responded, it's recommended to consider alternative solutions or seek support from a security expert.

What to do

No fix is available yet. Check with your software vendor for updates.

Affected software

Vendor	Product	Affected versions	Fix available
comfast	cf-e4_firmware	2.6.0.1	–

Original title

A vulnerability was identified in Comfast CF-E4 2.6.0.1. This impacts an unknown function of the file /cgi-bin/mbox-config?method=SET&section=ntp_timezone of the component HTTP POST Request Handler...

Original description

A vulnerability was identified in Comfast CF-E4 2.6.0.1. This impacts an unknown function of the file /cgi-bin/mbox-config?method=SET&section=ntp_timezone of the component HTTP POST Request Handler. Such manipulation of the argument timestr leads to command injection. The attack may be launched remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.

nvd CVSS2.0 5.8

nvd CVSS3.1 7.2

nvd CVSS4.0 5.1

Vulnerability type

CWE-74 Injection

CWE-77 Command Injection

https://github.com/cha0yang1/COMFAST/blob/main/RCE.md Exploit Third Party Advisory
https://vuldb.com/?ctiid.346125 Permissions Required VDB Entry
https://vuldb.com/?id.346125 Third Party Advisory VDB Entry
https://vuldb.com/?submit.749196 Third Party Advisory VDB Entry