Improper Neutralization of Special Elements used in a Command ('Command Injection') in Cisco Small Business SPA500 Series IP Phones - CVE-2019-1923
Published: July 22, 2019
Vulnerability identifier: #VU19286
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:P/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2019-1923
CWE-ID: CWE-77
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Cisco Systems, Inc
Affected software:
Cisco Small Business SPA500 Series IP Phones
Cisco Small Business SPA500 Series IP Phones
Detailed vulnerability description
The vulnerability allows a physically proximate attacker to execute arbitrary commands on the device.
The vulnerability exists due to the due to improper input validation in the device configuration interface. An attacker with physical access to the device can access the configuration interface, which may require a password, and then access the device's physical interface and insert a USB storage device.
Successful exploitation of this vulnerability allows the attacker to execute arbitrary commands on the device in an elevated security context.
How to mitigate CVE-2019-1923
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.