CVE-2019-1679 Server-side request forgery in Cisco Expressway Series

Medium 5.0 Published Updated

Authenticated attackers can trigger SSRF via the REST API, allowing requests to arbitrary hosts from the server.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2019-1679?

CVE-2019-1679 is a medium-severity server-side request forgery vulnerability in Cisco Expressway Series, published on 7 Feb 2019. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability in the web interface of Cisco TelePresence Conductor, Cisco Expressway Series, and Cisco TelePresence Video Communication Server (VCS) Software could allow an authenticated, remote attacker to trigger an HTTP request from an affected server to an arbitrary host. This type of attack is commonly referred to as server-side request forgery (SSRF). The vulnerability is due to insufficient access controls for the REST API of Cisco Expressway Series and Cisco TelePresence VCS. An attacker could exploit this vulnerability by submitting a crafted HTTP request to the affected server. Versions prior to XC4.3.4 are affected.

Weakness: CWE-918

Which versions are affected by CVE-2019-1679?

It affects 2 products.

Products include Cisco Telepresence Conductor, Cisco Telepresence Video Communication Server.

How do I fix CVE-2019-1679?

No fix has been published for CVE-2019-1679 yet. Limit exposure of the affected software until one is available.

Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.

Is CVE-2019-1679 being exploited?

There is no known exploitation of CVE-2019-1679 in the wild and no public exploit code.

Sources

Also known as GHSA-f4vr-c276-c5cm.

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