CVE-2019-1923 Cisco Small Business SPA500 Series IP Phones Local Command Execution Vulnerability
A physically proximate attacker can execute arbitrary commands with elevated privileges on Cisco SPA500 IP phones via the configuration interface and USB insertion.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2019-1923?
CVE-2019-1923 is a medium-severity command injection vulnerability in Cisco SPA525G2 5-line IP Phone, published on 17 Jul 2019. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability in Cisco Small Business SPA500 Series IP Phones could allow a physically proximate attacker to execute arbitrary commands on the device. The vulnerability is due to improper input validation in the device configuration interface. An attacker could exploit this vulnerability by accessing the configuration interface, which may require a password, and then accessing the device's physical interface and inserting a USB storage device. A successful exploit could allow the attacker to execute arbitrary commands on the device in an elevated security context. At the time of publication, this vulnerability affected Cisco Small Business SPA500 Series IP Phones firmware releases 7.6.2SR5 and prior.
Which versions are affected by CVE-2019-1923?
It affects 10 products.
Products include Cisco Spa500ds Firmware, Cisco Spa500s Firmware, Cisco Spa501g Firmware, Cisco Spa502g Firmware, Cisco Spa504g Firmware, Cisco Spa508g Firmware and 4 more.
How do I fix CVE-2019-1923?
No fix has been published for CVE-2019-1923 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-2019-1923 being exploited?
There is no known exploitation of CVE-2019-1923 in the wild and no public exploit code.
Other vulnerabilities in Cisco SPA525G2 5-line IP Phone
Sources
Also known as GHSA-pcwq-7vcg-g735.