PT-2020-4467 · Cisco · Cisco Ftd

Santosh Krishnamurthy · Published 2020-10-21 · Updated 2020-10-30 · CVE-2020-3533

Positive Technologies (AI Summary)

CVSS v3.1

8.6

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Cisco Firepower Threat Defense (FTD) Software (affected versions not specified)

Description The issue is related to a lack of sufficient memory management protections under heavy SNMP polling loads in the Simple Network Management Protocol (SNMP) input packet processor. An attacker could exploit this by sending a high rate of SNMP requests to the SNMP daemon through the management interface, causing the SNMP daemon process to consume a large amount of system memory over time. This could lead to an unexpected device restart, resulting in a denial of service (DoS) condition.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Resource Exhaustion

Weakness Enumeration

CWE-400

Related Identifiers

BDU:2020-05015

CVE-2020-3533

Affected Products

Cisco Ftd

References · 4

• https://osv.dev/vulnerability/CVE-2020-3533 · Vendor Advisory
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-snmp-dos-R8ENPbOs · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-3533 · Security Note
• https://bdu.fstec.ru/vul/2020-05015 · Security Note