Buffer overflow in Cisco FXOS - CVE-2018-0302

 

Buffer overflow in Cisco FXOS - CVE-2018-0302

Published: June 20, 2018 / Updated: June 25, 2018


Vulnerability identifier: #VU13438
CSH Severity: Low
CVSS v4.0: 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/E:U/U:Clear
CVE-ID: CVE-2018-0302
CWE-ID: CWE-120
Exploitation vector: Local access
Exploit availability: No public exploit available
Vendor: Cisco Systems, Inc
Affected software:
Cisco FXOS

Detailed vulnerability description

The vulnerability allows a local attacker to gain elevated privileges on the target system.

The vulnerability exists in the CLI parser due to boundary error when incorrect input validation in the CLI parser subsystem. A local attacker can exceed the expected length of user input, trigger memory corruption and execute arbitrary code with root privileges.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


How to mitigate CVE-2018-0302

Install update from vendor's website.

Sources