CVE-2019-13271 Information disclosure in n/a
Edimax routers fail to isolate guest and host networks, allowing attackers to leak data via ARP broadcast forwarding and bypass network segmentation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-13271?
CVE-2019-13271 is a high-severity vulnerability in n/a, published on 27 Aug 2019. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Edimax BR-6208AC V1 devices have Insufficient Compartmentalization between a host network and a guest network that are established by the same device. They forward ARP requests, which are sent as broadcast packets, between the host and the guest networks. To use this leakage as a direct covert channel, the sender can trivially issue an ARP request to an arbitrary computer on the network. (In general, some routers restrict ARP forwarding only to requests destined for the network's subnet mask, but these routers did not restrict this traffic in any way. Depending on this factor, one must use either the lower 8 bits of the IP address, or the entire 32 bits, as the data payload.)
Which versions are affected by CVE-2019-13271?
It affects 1 product.
Products include Edimax Br-6208ac V1 Firmware.
How do I fix CVE-2019-13271?
No fix has been published for CVE-2019-13271 yet. Limit exposure of the affected software until one is available.
Is CVE-2019-13271 being exploited?
There is no known exploitation of CVE-2019-13271 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-2m6v-xpgq-6gwv.