CVE-2021-1128
First published: Thu Feb 04 2021(Updated: )
A vulnerability in the CLI parser of Cisco IOS XR Software could allow an authenticated, local attacker to view more information than their privileges allow. The vulnerability is due to insufficient application of restrictions during the execution of a specific command. An attacker could exploit this vulnerability by using a specific command at the command line. A successful exploit could allow the attacker to obtain sensitive information within the configuration that otherwise might not have been accessible beyond the privileges of the invoking user.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco IOS XR | <7.1.2 | |
| Cisco IOS XR | =7.2.0 | |
| Cisco IOS XR | =7.3.0 |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID of this vulnerability?
The vulnerability ID is CVE-2021-1128.
What is the title of this vulnerability?
The title of this vulnerability is 'A vulnerability in the CLI parser of Cisco IOS XR Software could allow an authenticated local attack…'
What is the severity of CVE-2021-1128?
The severity of CVE-2021-1128 is medium.
Which software versions are affected by CVE-2021-1128?
The affected software versions are Cisco IOS XR 7.1.2, 7.2.0, and 7.3.0.
How can an attacker exploit CVE-2021-1128?
An attacker could exploit CVE-2021-1128 by executing a specific command to view more information than their privileges allow.
- collector/nvd-index
- vendor/cisco
- canonical/cisco ios xr
- version/cisco ios xr/7.2.0
- version/cisco ios xr/7.3.0