#VU17398 Improper access control in DIR-823G - CVE-2019-7389

Vulnerability identifier: #VU17398

Vulnerability risk: Low

CVSSv4.0: 5.5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2019-7389

CWE-ID: CWE-284

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
DIR-823G
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor: D-Link

Description

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The vulnerability exists in /bin/goahead due to incorrect access control. A remote unauthenticated attacker can reset the router without authentication via the SetFactoryDefault HNAP API without authentication.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

DIR-823G: 1.02B03

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External links
https://github.com/leonW7/D-Link/blob/master/Vul_4.md

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker 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.