CVE-2021-34761
published 2021-10-27CVE-2021-34761: A vulnerability in Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, local attacker to overwrite or append arbitrary data to system…
PriorityP431medium6CVSS 3.1
AVLACLPRHUINSUCNIHAH
EPSS
0.21%
10.8th percentile
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.
Affected
18 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| cisco | cisco_firepower_threat_defense_software | — | — |
| cisco | firepower_management_center_virtual_appliance | — | — |
| cisco | firepower_management_center_virtual_appliance | — | — |
| cisco | firepower_management_center_virtual_appliance | — | — |
| cisco | firepower_management_center_virtual_appliance | — | — |
| cisco | firepower_management_center_virtual_appliance | — | — |
| cisco | firepower_management_center_virtual_appliance | — | — |
| cisco | firepower_threat_defense | — | — |
| cisco | firepower_threat_defense | >= 6.4.0 < 6.4.0.13 | 6.4.0.13 |
| cisco | firepower_threat_defense | >= 6.6.0 < 6.6.5 | 6.6.5 |
| cisco | firepower_threat_defense | >= 6.7.0 < 6.7.0.3 | 6.7.0.3 |
| cisco | firepower_threat_defense | >= 7.0.0 < 7.0.1 | 7.0.1 |
| cisco | sourcefire_defense_center | — | — |
| cisco | sourcefire_defense_center | — | — |
| cisco | sourcefire_defense_center | — | — |
| cisco | sourcefire_defense_center | — | — |
| cisco | sourcefire_defense_center | — | — |
| cisco | sourcefire_defense_center | — | — |
CVSS provenance
nvdv3.16.0MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
nvdv2.06.6MEDIUMAV:L/AC:L/Au:N/C:N/I:C/A:C
vendor_cisco4.4MEDIUM
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Cisco
Cisco Firepower Threat Defense Software CLI Arbitrary File Write Vulnerability
vendor_cisco·2021-10-27·CVSS 4.4
CVE-2021-34761 [MEDIUM] CWE-73 Cisco Firepower Threat Defense Software CLI Arbitrary File Write Vulnerability
Cisco Firepower Threat Defense Software CLI Arbitrary File Write Vulnerability
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.
Cisco has released software updates that address this vulnerability. There
Cisco
Cisco Firepower Threat Defense Software CLI Arbitrary File Write Vulnerability
vendor_cisco·CVSS 3.1
CVE-2021-34761 Cisco Firepower Threat Defense Software CLI Arbitrary File Write Vulnerability
CVE-2021-34761: Cisco Firepower Threat Defense Software CLI Arbitrary File Write Vulnerability
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. Cisco has released software updates that address this vulne
GHSA
GHSA-3vcw-92x2-jjg4: A vulnerability in Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, local attacker to overwrite or append arbitrary data to
ghsa_unreviewed·2022-05-24
CVE-2021-34761 [MEDIUM] CWE-20 GHSA-3vcw-92x2-jjg4: A vulnerability in Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, local attacker to overwrite or append arbitrary data to
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.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2021-10-27
Published