SB2021032413 - Privilege escalation in Cisco IOS XE Software Plug-and-Play
Published: March 24, 2021
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Inclusion of Sensitive Information in Log Files (CVE-ID: CVE-2021-1442)
CWE-ID: CWE-532 - Information Exposure Through Log Files
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists in a diagnostic command for the Plug-and-Play (PnP) subsystem of Cisco IOS XE Software. A local low-privileged user can run the diagnostic CLI show pnp profile when a specific PnP listener is enabled on the device and obtain a privileged authentication token. This token can be used to send crafted PnP messages and execute privileged commands on the targeted system.
Remediation
Install update from vendor's website.