CVE-2017-18368 Zyxel P660HN-T1A Routers Command Injection

Exploited in the wild Critical 9.8 Published Updated

Unauthenticated attackers can execute arbitrary commands via the remote_host parameter in the ViewLog.asp page of ZyXEL P660HN-T1A routers.

Exploited in the wild
Since 7 Aug 2023
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2017-18368?

CVE-2017-18368 is a critical command injection vulnerability in n/a, published on 2 May 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The ZyXEL P660HN-T1A v1 TCLinux Fw $7.3.15.0 v001 / 3.40(ULM.0)b31 router distributed by TrueOnline has a command injection vulnerability in the Remote System Log forwarding function, which is accessible by an unauthenticated user. The vulnerability is in the ViewLog.asp page and can be exploited through the remote_host parameter.

Weakness: CWE-78

Which versions are affected by CVE-2017-18368?

It affects 3 products.

Products include Billion 5200w-T Firmware, Zyxel P660hn-T1a V1 Firmware, Zyxel P660hn-T1a V2 Firmware.

How do I fix CVE-2017-18368?

No fix has been published for CVE-2017-18368 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 28 Aug 2023.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2017-18368 being exploited?

Yes. Attackers have exploited CVE-2017-18368 in the wild since at least 7 Aug 2023.

Public exploit code: 1 Metasploit module.

Sources

Also known as GHSA-8hjr-66w2-mg84.

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