SB2020102723 - Multiple vulnerabilities in Cisco Firepower Threat Defense Software
Published: October 27, 2020
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 secuirty vulnerabilities.
1) Resource exhaustion (CVE-ID: CVE-2020-3533)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources in the Simple Network Management Protocol (SNMP) input packet processor. A remote attacker can send a high rate of SNMP requests to the SNMP daemon through the management interface on an affected devic, trigger resource exhaustion and perform a denial of service (DoS) attack.
2) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2020-3514)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a configuration file that is used at container startup has insufficient protections in the multi-instance feature. A local administrator can modify a specific container configuration file on the underlying file system and execute commands with root privileges within the host namespace.
3) Input validation error (CVE-ID: CVE-2020-3317)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to insufficient validation of user-supplied input in the ssl_inspection component. A remote attacker can send a specially crafted TLS packet and cause a denial of service condition.
Remediation
Install update from vendor's website.
References
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-snmp-dos-R8ENPbOs
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-container-esc-FmYqFBQV
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-ssl-mf3822Z