CVE-2017-9479 Command injection in n/a

Critical 9.8 Published 31 Jul 2017 Updated 5 Aug 2024

Remote attackers with local network access can execute arbitrary commands as root on Cisco DPC3939 cable modems via the syseventd server.

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-2017-9479?

CVE-2017-9479 is a critical command injection 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 execute arbitrary commands as root by leveraging local network access and connecting to the syseventd server, as demonstrated by copying configuration data into a readable filesystem.

Weakness: CWE-732

Which versions are affected by CVE-2017-9479?

It affects 1 product.

Products include Cisco Dpc3939 Firmware.

How do I fix CVE-2017-9479?

No fix has been published for CVE-2017-9479 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2017-9479 being exploited?

There is no known exploitation of CVE-2017-9479 in the wild and no public exploit code.

Sources

Also known as GHSA-v2m5-q8w7-pr85.