CVE-2015-6383

Name of the Vulnerable Software and Affected Versions Cisco IOS XE versions 15.4(3)S and 3S

Description A local user can bypass license restrictions and obtain certain root privileges by using the CLI to enter crafted filenames. The vulnerability occurs because parameters to diagnostic commands at the command-line interface (CLI) are not properly validated. An attacker could exploit this by authenticating to the affected device at privileged level 15 and providing crafted parameters to the diagnostic commands, potentially allowing further compromise.

Recommendations For Cisco IOS XE version 15.4(3)S, update to a version that includes the fix for this issue. For Cisco IOS XE version 3S, apply the software updates released by Cisco that address this vulnerability. As a temporary workaround, consider restricting access to the diagnostic commands at the CLI to minimize the risk of exploitation.