CVE-2017-9481 Missing authorization in n/a
Remote attackers can access the internal Network Processor by adding a specific routing table entry, bypassing intended network isolation.
- 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-2017-9481?
CVE-2017-9481 is a high-severity missing authorization vulnerability in n/a, published on 31 Jul 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Comcast firmware on Cisco DPC3939 (firmware version dpc3939-P20-18-v303r20421746-170221a-CMCST) devices allows remote attackers to obtain unintended access to the Network Processor (NP) 169.254/16 IP network by adding a routing-table entry that specifies the LAN IP address as the router for that network.
Which versions are affected by CVE-2017-9481?
It affects 1 product.
Products include Cisco Dpc3939 Firmware.
How do I fix CVE-2017-9481?
No fix has been published for CVE-2017-9481 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-2017-9481 being exploited?
There is no known exploitation of CVE-2017-9481 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-jr56-p22g-v622.