CVE-2021-1423
Medium
Description
A vulnerability in the implementation of a CLI command in Cisco Aironet Access Points (AP) could allow an authenticated, local attacker to overwrite files in the flash memory of the device. This vulnerability is due to insufficient input validation for a specific command. An attacker could exploit this vulnerability by issuing a command with crafted arguments. A successful exploit could allow the attacker to overwrite or create files with data that is already present in other files that are hosted on the affected device.
SeverityMedium
CVSS4.4
Exploit probability—
Product
Cisco Aironet Access Point Software
PublishedMar 24, 2021
First seenMar 24, 2021
Weakness typeCWE-668CWE-668
How to fix
Update
- cisco catalyst_9800_firmware16.12.5 or later
- cisco wireless_lan_controller_software8.5.171.0, 8.10.130.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| cisco aironet_access_point_software | No range specified | — |
| cisco catalyst_9800_firmware | v < 16.12.5, 17.1 ≤ v ≤ 17.2 | 16.12.5 |
| cisco wireless_lan_controller_software | v < 8.5.171.0, 8.6 ≤ v < 8.10.130.0 | 8.5.171.0, 8.10.130.0 |
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