Firepower Management Center Virtual Appliance
CVE-2021-34761
MEDIUM
Severity by source
AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
Lifecycle Timeline
1DescriptionNVD
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.
AnalysisAI
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. Rated medium severity (CVSS 6.0), this vulnerability is low attack complexity. No vendor patch available.
Technical ContextAI
This vulnerability is classified under CWE-73. 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 products include: Cisco Firepower Management Center Virtual Appliance, Cisco Firepower Threat Defense, Cisco Sourcefire Defense Center.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.
A vulnerability in the web-based management interface of Cisco Firepower Management Center could allow an unauthenticate
A vulnerability in the web-based management interface of Cisco Firepower Management Center (FMC) Software could allow an
Multiple vulnerabilities in the CLI of Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, local
Multiple vulnerabilities in the CLI of Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, local
A vulnerability in the processing of SSH connections for multi-instance deployments of Cisco Firepower Threat Defense (F
Multiple vulnerabilities in the web-based management interface of Cisco Firepower Management Center (FMC) Software could
Multiple vulnerabilities in the web-based management interface of Cisco Firepower Management Center (FMC) Software could
Same weakness CWE-73 – External Control of File Name or Path
View allSame technique Information Disclosure
View allShare
External POC / Exploit Code
Leaving vuln.today