cisco-sa-iosxr-pe-QpzCAePe: Cisco IOS XR Software for Cisco 8000 Series Routers and Network Convergence System 540 Series Routers Privilege Escalation Vulnerability
First published: Wed Feb 03 2021(Updated: )
A vulnerability in a CLI command of Cisco IOS XR Software for the Cisco 8000 Series Routers and Network Convergence System 540 Series Routers running NCS540L software images could allow an authenticated, local attacker to elevate their privilege to root. To exploit this vulnerability, an attacker would need to have a valid account on an affected device. The vulnerability is due to insufficient validation of command line arguments. An attacker could exploit this vulnerability by authenticating to the device and entering a crafted command at the prompt. A successful exploit could allow an attacker with low-level privileges to escalate their privilege level to root. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is available at the following link:https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxr-pe-QpzCAePe
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco platform | =Cisco 8000 Series Routers<7.0.127.2.1 | 7.0.127.2.1 |
| Cisco IOS XR Software | =7.1.2<NCS540L | NCS540L |
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Reference Links
Frequently Asked Questions
What is the severity of cisco-sa-iosxr-pe-QpzCAePe?
The severity of cisco-sa-iosxr-pe-QpzCAePe is 7.8 (high).
How does cisco-sa-iosxr-pe-QpzCAePe affect Cisco 8000 Series Routers and Network Convergence System 540 Series Routers?
cisco-sa-iosxr-pe-QpzCAePe affects Cisco 8000 Series Routers and Network Convergence System 540 Series Routers running NCS540L software images.
What is the vulnerability described in cisco-sa-iosxr-pe-QpzCAePe?
cisco-sa-iosxr-pe-QpzCAePe is a vulnerability in a CLI command that could allow an attacker to elevate their privilege to root.
How can an attacker exploit cisco-sa-iosxr-pe-QpzCAePe?
To exploit cisco-sa-iosxr-pe-QpzCAePe, an attacker would need to be authenticated and local on the affected device.
Is there a fix available for cisco-sa-iosxr-pe-QpzCAePe?
Yes, Cisco has provided a fix for cisco-sa-iosxr-pe-QpzCAePe. Please refer to the Cisco Security Advisory for more details.
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