CVE-2021-34761
Description
A vulnerability in Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, local attacker to overwrite or append arbitrary data to system files using root-level privileges. The attacker must have administrative credentials on the device. This vulnerability is due to incomplete validation of user input for a specific CLI command. An attacker could exploit this vulnerability by authenticating to the device with administrative privileges and issuing a CLI command with crafted user parameters. A successful exploit could allow the attacker to overwrite or append arbitrary data to system files using root-level privileges.
How to fix
- cisco secure_firewall_threat_defense6.4.0.13, 6.6.5, 6.7.0.3, 7.0.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| cisco firepower_management_center_virtual_appliance | 6.2.3, 6.4.0, 6.6.1, 6.7.0, 7.0.0, 7.1.0 | — |
| cisco secure_firewall_threat_defense | 6.4.0 ≤ v < 6.4.0.13, 6.6.0 ≤ v < 6.6.5, 6.7.0 ≤ v < 6.7.0.3, 7.0.0 ≤ v < 7.0.1 | 6.4.0.13, 6.6.5, 6.7.0.3, 7.0.1 |
| cisco sourcefire_defense_center | 6.2.3, 6.4.0, 6.6.1, 6.7.0, 7.0.0, 7.1.0 | — |
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