CVE-2021-34771: Cisco IOS XR Software Unauthorized Information Disclosure Vulnerability
First published: Thu Sep 09 2021(Updated: )
A vulnerability in the Cisco IOS XR Software CLI could allow an authenticated, local attacker to view more information than their privileges allow. This vulnerability is due to insufficient application of restrictions during the execution of a specific command. An attacker could exploit this vulnerability by running a specific command. A successful exploit could allow the attacker to view sensitive configuration information that their privileges might not otherwise allow them to access.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco IOS XR | <7.3.2 |
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Reference Links
Frequently Asked Questions
What is CVE-2021-34771?
CVE-2021-34771 is a vulnerability in the Cisco IOS XR Software CLI that could allow an authenticated local attacker to view more information than their privileges allow.
What is the severity of CVE-2021-34771?
The severity of CVE-2021-34771 is medium, with a severity value of 5.5.
Which software is affected by CVE-2021-34771?
The Cisco IOS XR Software version up to and exclusive of 7.3.2 is affected by CVE-2021-34771.
What is the CWE of CVE-2021-34771?
The CWE of CVE-2021-34771 is 200 and 201.
How do I fix CVE-2021-34771?
To fix CVE-2021-34771, it is recommended to upgrade the Cisco IOS XR Software to a version beyond 7.3.2.
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