Vulnerability · Published Apr 29, 2021 · Assigned by cisco
CVE-2021-1256Cisco Firepower Threat Defense Software Command File Overwrite Vulnerability
Medium 6.0
In plain English
A medium-severity security flaw in Cisco Firepower Threat Defense Software from Cisco. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 43% of all known vulnerabilities).
Official description
A vulnerability in the CLI of Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, local attacker to overwrite files on the file system of an affected device by using directory traversal techniques. A successful exploit could cause system instability if important system files are overwritten. This vulnerability is due to insufficient validation of user input for the file path in a specific CLI command. An attacker could exploit this vulnerability by logging in to a targeted device and issuing a specific CLI command with crafted user input. A successful exploit could allow the attacker to overwrite arbitrary files on the file system of the affected device. The attacker would need valid user credentials on the device.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Cisco Firepower Threat Defense Software | n/a |
Weakness: CWE-552 · Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
References
- 20210428 Cisco Firepower Threat Defense Software Command File Overwrite Vulnerability vendor-advisory, x_refsource_CISCO
- https://kc.mcafee.com/corporate/index?page=content&id=SB10382 x_refsource_CONFIRM