CVE-2019-19941 Cross-site scripting in n/a

Medium 5.4 Published 16 Mar 2020 Updated 5 Aug 2024

Remote attackers can inject malicious hostnames via DHCP requests to trigger Cross-Site Scripting in the router's DNS service interface.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2019-19941?

CVE-2019-19941 is a medium-severity cross-site scripting vulnerability in n/a, published on 16 Mar 2020. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

Official description

Missing hostname validation in Swisscom Centro Grande before 6.16.12 allows a remote attacker to inject its local IP address as a domain entry in the DNS service of the router via crafted hostnames in DHCP requests, causing XSS.

Weakness: CWE-79

Which versions are affected by CVE-2019-19941?

It affects 1 product.

Products include Swisscom Centro Grande Firmware.

How do I fix CVE-2019-19941?

No fix has been published for CVE-2019-19941 yet. Limit exposure of the affected software until one is available.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2019-19941 being exploited?

There is no known exploitation of CVE-2019-19941 in the wild and no public exploit code.

Sources

Also known as GHSA-pc2g-7fx7-8p9p.