CVE-2019-13263 Information disclosure in n/a

High 8.8 Published Updated

Attackers can leak data from the host network to the guest network via DHCP transaction IDs due to insufficient compartmentalization in D-Link routers.

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-2019-13263?

CVE-2019-13263 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

D-link DIR-825AC G1 devices have Insufficient Compartmentalization between a host network and a guest network that are established by the same device. A DHCP Request is sent to the router with a certain Transaction ID field. Following the DHCP protocol, the router responds with an ACK or NAK message. Studying the NAK case revealed that the router erroneously sends the NAK to both Host and Guest networks with the same Transaction ID as found in the DHCP Request. This allows encoding of data to be sent cross-router into the 32-bit Transaction ID field.

Weakness: CWE-669

Which versions are affected by CVE-2019-13263?

It affects 1 product.

Products include Dlink Dir-825\/Ac G1 Firmware.

How do I fix CVE-2019-13263?

No fix has been published for CVE-2019-13263 yet. Limit exposure of the affected software until one is available.

Is CVE-2019-13263 being exploited?

There is no known exploitation of CVE-2019-13263 in the wild and no public exploit code.

Sources

Also known as GHSA-jrgh-f66h-m27j.

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