4.3
CVSSv2

CVE-2021-34787

Published: 27/10/2021 Updated: 07/11/2023
CVSS v2 Base Score: 4.3 | Impact Score: 2.9 | Exploitability Score: 8.6
CVSS v3 Base Score: 5.3 | Impact Score: 1.4 | Exploitability Score: 3.9
VMScore: 383
Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N

Vulnerability Summary

A vulnerability in the identity-based firewall (IDFW) rule processing feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote malicious user to bypass security protections. This vulnerability is due to improper handling of network requests by affected devices configured to use object group search. An attacker could exploit this vulnerability by sending a specially crafted network request to an affected device. A successful exploit could allow the malicious user to bypass access control list (ACL) rules on the device, bypass security protections, and send network traffic to unauthorized hosts.

Vulnerability Trend

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cisco firepower threat defense

cisco adaptive security appliance

cisco adaptive security appliance software

cisco asa_5512-x_firmware 009.009

cisco asa_5512-x_firmware 009.012

cisco asa_5505_firmware 009.009

cisco asa_5505_firmware 009.012

cisco asa_5515-x_firmware 009.009

cisco asa_5515-x_firmware 009.012

cisco asa_5525-x_firmware 009.009

cisco asa_5525-x_firmware 009.012

cisco asa_5545-x_firmware 009.009

cisco asa_5545-x_firmware 009.012

cisco asa_5555-x_firmware 009.009

cisco asa_5555-x_firmware 009.012

cisco asa_5580_firmware 009.009

cisco asa_5580_firmware 009.012

cisco asa_5585-x_firmware 009.009

cisco asa_5585-x_firmware 009.012

Vendor Advisories

A vulnerability in the identity-based firewall (IDFW) rule processing feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass security protections This vulnerability is due to improper handling of network requests by affected devices con ...