CVE-2017-18046 Memory corruption in n/a
Remote attackers can execute arbitrary code on Dasan GPON ONT WiFi Routers via a buffer overflow in the login CGI script.
- 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-2017-18046?
CVE-2017-18046 is a critical memory corruption vulnerability in n/a, published on 21 Jan 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Buffer overflow on Dasan GPON ONT WiFi Router H640X 12.02-01121 2.77p1-1124 and 3.03p2-1146 devices allows remote attackers to execute arbitrary code via a long POST request to the login_action function in /cgi-bin/login_action.cgi (aka cgipage.cgi).
Weakness: CWE-119
Which versions are affected by CVE-2017-18046?
It affects 1 product.
Products include Dasannetworks H640x Firmware.
How do I fix CVE-2017-18046?
No fix has been published for CVE-2017-18046 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2017-18046 being exploited?
There is no known exploitation of CVE-2017-18046 in the wild and no public exploit code.
Sources
Also known as GHSA-grjw-qj2p-c4f5.