CVE-2019-20489 Auth bypass in n/a

Critical 9.8 Published Updated

Attackers can bypass authentication on NETGEAR routers via a cookie manipulation flaw, leading to remote device compromise.

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-2019-20489?

CVE-2019-20489 is a critical authentication bypass vulnerability in n/a, published on 2 Mar 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue was discovered on NETGEAR WNR1000V4 1.1.0.54 devices. The web management interface (setup.cgi) has an authentication bypass and other problems that ultimately allow an attacker to remotely compromise the device from a malicious webpage. The attacker sends an FW_remote.htm&todo=cfg_init request without a cookie, reads the Set-Cookie header in the 401 Unauthorized response, and then repeats the FW_remote.htm&todo=cfg_init request with the specified cookie.

Weakness: CWE-287

Which versions are affected by CVE-2019-20489?

It affects 1 product.

Products include Netgear Wnr1000 Firmware.

How do I fix CVE-2019-20489?

No fix has been published for CVE-2019-20489 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2019-20489 being exploited?

There is no known exploitation of CVE-2019-20489 in the wild and no public exploit code.

Sources

Also known as GHSA-rr49-pwf2-62mg.

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