Vulnerability identifier: #VU49091

Vulnerability risk: Medium

CVSSv3.1: 7.3 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N/E:P/RL:O/RC:C]

CVE-ID: CVE-2020-24581

CWE-ID: CWE-912

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
DSL-2888A
Hardware solutions / Routers for home users

Vendor: D-Link

Description

The vulnerability allows a remote user to escalate privileges on the device.

The vulnerability exists due to presence of hidden functionality in firmware. A remote authenticated user can execute arbitrary OS commands via "cmd" parameter to "/cgi-bin/execute_cmd.cgi" script.

Example:

http://DeviceIP/cgi-bin/execute_cmd.cgi?timestamp=1589333279490&cmd=ls

Mitigation
Install updates from vendor's website.

Vulnerable software versions

DSL-2888A: 2.00 - 2.29

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External links
http://www.trustwave.com/en-us/resources/security-resources/security-advisories/?fid=28241

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.