CVE-2019-1897 Cisco RV110W, RV130W, and RV215W Routers Denial of Service Vulnerability

Medium 5.3 Published Updated

Unauthenticated attackers can disconnect guest network clients on Cisco RV routers by accessing a specific URL without proper authorization checks.

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-2019-1897?

CVE-2019-1897 is a medium-severity missing authorization vulnerability in Cisco Rv110w Firmware, published on 20 Jun 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability in the web-based management interface of Cisco RV110W, RV130W, and RV215W Routers could allow an unauthenticated, remote attacker to disconnect clients that are connected to the guest network on an affected router. The vulnerability is due to improper authorization of an HTTP request. An attacker could exploit this vulnerability by accessing the URL for device disconnection and providing the connected device information. A successful exploit could allow the attacker to deny service to specific clients that are connected to the guest network.

Weakness: CWE-306, CWE-285

Which versions are affected by CVE-2019-1897?

It affects 3 products.

Products include Cisco Rv110w Firmware, Cisco Rv130w Firmware, Cisco Rv215w Firmware.

How do I fix CVE-2019-1897?

No fix has been published for CVE-2019-1897 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-2019-1897 being exploited?

There is no known exploitation of CVE-2019-1897 in the wild and no public exploit code.

All Cisco Rv110w Firmware vulnerabilities

Sources

Also known as GHSA-hg39-x987-h4q6.

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