SB2020102723 - Multiple vulnerabilities in Cisco Firepower Threat Defense Software

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Main Vulnerability Database SB2020102723

SB2020102723 - Multiple vulnerabilities in Cisco Firepower Threat Defense Software

Published: October 27, 2020

Security Bulletin ID SB2020102723
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities 3
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

Medium 67% Low 33%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 3 vulnerabilities.


1) Resource exhaustion (CVE-ID: CVE-2020-3533)

CWE-ID: CWE-400 - Resource exhaustion

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green


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)

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


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)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green


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