CVE-2018-17786 Missing authorization in n/a

Critical 9.8 Published 2 Oct 2018 Updated 5 Aug 2024

Remote attackers can execute arbitrary code on D-Link DIR-823G routers due to missing authentication in several CGI scripts.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2018-17786?

CVE-2018-17786 is a critical missing authorization vulnerability in n/a, published on 2 Oct 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

On D-Link DIR-823G devices, ExportSettings.sh, upload_settings.cgi, GetDownLoadSyslog.sh, and upload_firmware.cgi do not require authentication, which allows remote attackers to execute arbitrary code.

Weakness: CWE-287

Which versions are affected by CVE-2018-17786?

It affects 1 product.

Products include D-Link Dir-823g Firmware.

How do I fix CVE-2018-17786?

No fix has been published for CVE-2018-17786 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2018-17786 being exploited?

There is no known exploitation of CVE-2018-17786 in the wild and no public exploit code.

Sources

Also known as GHSA-ff4r-qf8v-wjf5.