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Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Identity-Based Rule Bypass Vulnerability

cisco-sa-asaftd-rule-bypass-ejjOgQEY · Medium · Published · Updated

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 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 attacker to bypass access control list (ACL) rules on the device, bypass security protections, and send network traffic to unauthorized hosts. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-rule-bypass-ejjOgQEY This advisory is part of the October 2021 release of the Cisco ASA, FTD, and FMC Security Advisory Bundled publication. For a complete list of the advisories and links to them, see Cisco Event Response: October 2021 Cisco ASA, FMC, and FTD Software Security Advisory Bundled Publication.

Cisco advisory ·CSAF JSON

Workarounds

There are no workarounds that address this vulnerability.

CVEsCVE-2021-34787
Cisco Bug IDsCSCvx47895
CVSS ScoreBase 5.3
Base 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:X/RL:X/RC:X
Product Names From Source
Cisco Adaptive Security Appliance (ASA) Software 9.8.1, Cisco Adaptive Security Appliance (ASA) Software 9.8.1.5, Cisco Adaptive Security Appliance (ASA) Software 9.8.1.7, Cisco Adaptive Security Appliance (ASA) Software 9.8.2, Cisco Adaptive Security Appliance (ASA) Software 9.8.2.8, Cisco Adaptive Security Appliance (ASA) Software 9.8.2.14, Cisco Adaptive Security Appliance (ASA) Software 9.8.2.15, Cisco Adaptive Security Appliance (ASA) Software 9.8.2.17, Cisco Adaptive Security Appliance (ASA) Software 9.8.2.20, Cisco Adaptive Security Appliance (ASA) Software 9.8.2.24, Cisco Adaptive Security Appliance (ASA) Software 9.8.2.26, Cisco Adaptive Security Appliance (ASA) Software 9.8.2.28, Cisco Adaptive Security Appliance (ASA) Software 9.8.2.33, Cisco Adaptive Security Appliance (ASA) Software 9.8.2.35, Cisco Adaptive Security Appliance (ASA) Software 9.8.2.38, Cisco Adaptive Security Appliance (ASA) Software 9.8.3.8, Cisco Adaptive Security Appliance (ASA) Software 9.8.3.11, Cisco Adaptive Security Appliance (ASA) Software 9.8.3.14, Cisco Adaptive Security Appliance (ASA) Software 9.8.3.16, Cisco Adaptive Security Appliance (ASA) Software 9.8.3.18, Cisco Adaptive Security Appliance (ASA) Software 9.8.3.21, Cisco Adaptive Security Appliance (ASA) Software 9.8.3, Cisco Adaptive Security Appliance (ASA) Software 9.8.3.26, Cisco Adaptive Security Appliance (ASA) Software 9.8.3.29, Cisco Adaptive Security Appliance (ASA) Software 9.8.4, Cisco Adaptive Security Appliance (ASA) Software 9.8.4.3, Cisco Adaptive Security Appliance (ASA) Software 9.8.4.7, Cisco Adaptive Security Appliance (ASA) Software 9.8.4.8, Cisco Adaptive Security Appliance (ASA) Software 9.8.4.10, Cisco Adaptive Security Appliance (ASA) Software 9.8.4.12, Cisco Adaptive Security Appliance (ASA) Software 9.8.4.15, Cisco Adaptive Security Appliance (ASA) Software 9.8.4.17, Cisco Adaptive Security Appliance (ASA) Software 9.8.4.25, Cisco Adaptive Security Appliance (ASA) Software 9.8.4.20, Cisco Adaptive Security Appliance (ASA) Software 9.8.4.22, Cisco Adaptive Security Appliance (ASA) Software 9.8.4.26, Cisco Adaptive Security Appliance (ASA) Software 9.8.4.29, Cisco Adaptive Security Appliance (ASA) Software 9.8.4.32, Cisco Adaptive Security Appliance (ASA) Software 9.8.4.33, Cisco Adaptive Security Appliance (ASA) Software 9.8.4.34, Cisco Adaptive Security Appliance (ASA) Software 9.8.4.35, Cisco Adaptive Security Appliance (ASA) Software 9.8.4.39, Cisco Adaptive Security Appliance (ASA) Software 9.12.1, Cisco Adaptive Security Appliance (ASA) Software 9.12.1.2, Cisco Adaptive Security Appliance (ASA) Software 9.12.1.3, Cisco Adaptive Security Appliance (ASA) Software 9.12.2, Cisco Adaptive Security Appliance (ASA) Software 9.12.2.4, Cisco Adaptive Security Appliance (ASA) Software 9.12.2.5, Cisco Adaptive Security Appliance (ASA) Software 9.12.2.9, Cisco Adaptive Security Appliance (ASA) Software 9.12.3, Cisco Adaptive Security Appliance (ASA) Software 9.12.3.2, Cisco Adaptive Security Appliance (ASA) Software 9.12.3.7, Cisco Adaptive Security Appliance (ASA) Software 9.12.4, Cisco Adaptive Security Appliance (ASA) Software 9.12.3.12, Cisco Adaptive Security Appliance (ASA) Software 9.12.3.9, Cisco Adaptive Security Appliance (ASA) Software 9.12.2.1, Cisco Adaptive Security Appliance (ASA) Software 9.12.4.2, Cisco Adaptive Security Appliance (ASA) Software 9.12.4.4, Cisco Adaptive Security Appliance (ASA) Software 9.12.4.7, Cisco Adaptive Security Appliance (ASA) Software 9.12.4.10, Cisco Adaptive Security Appliance (ASA) Software 9.12.4.13, Cisco Adaptive Security Appliance (ASA) Software 9.12.4.8, Cisco Adaptive Security Appliance (ASA) Software 9.12.4.18, Cisco Adaptive Security Appliance (ASA) Software 9.12.4.24, Cisco Adaptive Security Appliance (ASA) Software 9.14.1, Cisco Adaptive Security Appliance (ASA) Software 9.14.1.10, Cisco Adaptive Security Appliance (ASA) Software 9.14.1.6, Cisco Adaptive Security Appliance (ASA) Software 9.14.1.15, Cisco Adaptive Security Appliance (ASA) Software 9.14.1.19, Cisco Adaptive Security Appliance (ASA) Software 9.14.1.30, Cisco Adaptive Security Appliance (ASA) Software 9.14.2, Cisco Adaptive Security Appliance (ASA) Software 9.14.2.4, Cisco Adaptive Security Appliance (ASA) Software 9.14.2.8, Cisco Adaptive Security Appliance (ASA) Software 9.14.2.13, Cisco Adaptive Security Appliance (ASA) Software 9.14.2.15, Cisco Adaptive Security Appliance (ASA) Software 9.14.3, Cisco Adaptive Security Appliance (ASA) Software 9.16.1, Cisco Adaptive Security Appliance (ASA) Software 9.16.2, Cisco Adaptive Security Appliance (ASA) Software 9.16.2.3, Cisco Firepower Threat Defense Software 6.2.3, Cisco Firepower Threat Defense Software 6.2.3.1, Cisco Firepower Threat Defense Software 6.2.3.2, Cisco Firepower Threat Defense Software 6.2.3.3, Cisco Firepower Threat Defense Software 6.2.3.4, Cisco Firepower Threat Defense Software 6.2.3.5, Cisco Firepower Threat Defense Software 6.2.3.6, Cisco Firepower Threat Defense Software 6.2.3.7, Cisco Firepower Threat Defense Software 6.2.3.8, Cisco Firepower Threat Defense Software 6.2.3.10, Cisco Firepower Threat Defense Software 6.2.3.11, Cisco Firepower Threat Defense Software 6.2.3.9, Cisco Firepower Threat Defense Software 6.2.3.12, Cisco Firepower Threat Defense Software 6.2.3.13, Cisco Firepower Threat Defense Software 6.2.3.14, Cisco Firepower Threat Defense Software 6.2.3.15, Cisco Firepower Threat Defense Software 6.2.3.16, Cisco Firepower Threat Defense Software 6.2.3.17, Cisco Firepower Threat Defense Software 6.6.0, Cisco Firepower Threat Defense Software 6.6.0.1, Cisco Firepower Threat Defense Software 6.6.1, Cisco Firepower Threat Defense Software 6.6.3, Cisco Firepower Threat Defense Software 6.6.4, Cisco Firepower Threat Defense Software 6.4.0, Cisco Firepower Threat Defense Software 6.4.0.1, Cisco Firepower Threat Defense Software 6.4.0.3, Cisco Firepower Threat Defense Software 6.4.0.2, Cisco Firepower Threat Defense Software 6.4.0.4, Cisco Firepower Threat Defense Software 6.4.0.5, Cisco Firepower Threat Defense Software 6.4.0.6, Cisco Firepower Threat Defense Software 6.4.0.7, Cisco Firepower Threat Defense Software 6.4.0.8, Cisco Firepower Threat Defense Software 6.4.0.9, Cisco Firepower Threat Defense Software 6.4.0.10, Cisco Firepower Threat Defense Software 6.4.0.11, Cisco Firepower Threat Defense Software 6.4.0.12, Cisco Firepower Threat Defense Software 7.0.0, Cisco Firepower Threat Defense Software 7.0.0.1, Cisco Secure Firewall Adaptive Security Appliance (ASA) Software, Cisco Secure Firewall Threat Defense (FTD) Software, Cisco Firepower 2100 Series, Cisco Firepower 1000 Series, Cisco ASA 5500-X Series Firewalls, Cisco 3000 Series Industrial Security Appliances (ISA), Cisco Firepower 9000 Series, Cisco Firepower 4100 Series, Cisco Adaptive Security Virtual Appliance (ASAv), Cisco Secure Firewall Threat Defense Virtual

Related Products

Product CVE Evidence
Cisco Secure Firewall Threat Defense Virtual CVE-2021-34787 Cisco OpenVuln
Cisco Secure Firewall Threat Defense (FTD) Software CVE-2021-34787 Cisco OpenVuln
Cisco Secure Firewall Adaptive Security Appliance (ASA) Software CVE-2021-34787 Cisco OpenVuln
Cisco Firepower Threat Defense Software CVE-2021-34787 Cisco OpenVuln
Cisco Firepower 9000 Series CVE-2021-34787 Cisco OpenVuln
Cisco Firepower 4100 Series CVE-2021-34787 Cisco OpenVuln
Cisco Firepower 2100 Series CVE-2021-34787 Cisco OpenVuln
Cisco Firepower 1000 Series CVE-2021-34787 Cisco OpenVuln
Cisco Adaptive Security Virtual Appliance (ASAv) CVE-2021-34787 Cisco OpenVuln
Cisco Adaptive Security Appliance (ASA) Software CVE-2021-34787 Cisco OpenVuln
Cisco ASA 5500-X Series Firewalls CVE-2021-34787 Cisco OpenVuln
Cisco 3000 Series Industrial Security Appliances (ISA) CVE-2021-34787 Cisco OpenVuln