Command injection in Cisco Web Security Appliance - CVE-2017-6748
Published: May 16, 2018
Vulnerability identifier: #VU12766
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2017-6748
CWE-ID: CWE-77
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local authenticated attacker to execute arbitrary commands with elevated privileges on the target system.
The weakness exists in the CLI parser due to insufficient validation of user-supplied input in the CLI parser. A local attacker can authenticate to the target device and perform command injection over the CLI, escape from the CLI subshell and execute system-level commands on the underlying operating system as root.
The weakness exists in the CLI parser due to insufficient validation of user-supplied input in the CLI parser. A local attacker can authenticate to the target device and perform command injection over the CLI, escape from the CLI subshell and execute system-level commands on the underlying operating system as root.
Affected software
Cisco Web Security Appliance
How to mitigate CVE-2017-6748
Update to versions 10.5.1-296, 10.5.1-270 or 10.1.1-234.