A vulnerability in the processing of SSH connections for multi-instance deployments of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on the affected device. This vulnerability is due to a lack of proper error handling when an SSH session fails to be established. An attacker could exploit this vulnerability by sending a high rate of crafted SSH connections to the instance. A successful exploit could allow the attacker to cause resource exhaustion, which causes a DoS condition on the affected device. The device must be manually reloaded to recover.
References
| Link | Resource |
|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-dos-rUDseW3r | Vendor Advisory |
Configurations
Configuration 1 (hide)
|
History
No history.
Information
Published : 2021-10-27 19:15
Updated : 2024-02-28 18:48
NVD link : CVE-2021-34781
Mitre link : CVE-2021-34781
CVE.ORG link : CVE-2021-34781
JSON object : View
Products Affected
cisco
- firepower_management_center_virtual_appliance
- sourcefire_defense_center
- firepower_threat_defense