CVE-2021-34787
published 2021-10-27CVE-2021-34787: A vulnerability in the identity-based firewall (IDFW) rule processing feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat…
PriorityP431medium5.3CVSS 3.1
AVNACLPRNUINSUCNILAN
EPSS
1.00%
59.0th percentile
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.
Affected
27 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| cisco | adaptive_security_appliance | < 9.8.4.40 | 9.8.4.40 |
| cisco | adaptive_security_appliance | — | — |
| cisco | adaptive_security_appliance_software | >= 9.13.0 < 9.14.3.1 | 9.14.3.1 |
| cisco | adaptive_security_appliance_software | >= 9.15.0 < 9.15.1.17 | 9.15.1.17 |
| cisco | adaptive_security_appliance_software | >= 9.16.0 < 9.16.1.28 | 9.16.1.28 |
| cisco | adaptive_security_appliance_software | >= 9.9.0 < 9.12.4.25 | 9.12.4.25 |
| cisco | asa_5505_firmware | — | — |
| cisco | asa_5505_firmware | — | — |
| cisco | asa_5512-x_firmware | — | — |
| cisco | asa_5512-x_firmware | — | — |
| cisco | asa_5515-x_firmware | — | — |
| cisco | asa_5515-x_firmware | — | — |
| cisco | asa_5525-x_firmware | — | — |
| cisco | asa_5525-x_firmware | — | — |
| cisco | asa_5545-x_firmware | — | — |
| cisco | asa_5545-x_firmware | — | — |
| cisco | asa_5555-x_firmware | — | — |
| cisco | asa_5555-x_firmware | — | — |
| cisco | asa_5580_firmware | — | — |
| cisco | asa_5580_firmware | — | — |
| cisco | asa_5585-x_firmware | — | — |
| cisco | asa_5585-x_firmware | — | — |
| cisco | cisco_adaptive_security_appliance_software | — | — |
| cisco | firepower_threat_defense | < 6.4.0.13 | 6.4.0.13 |
| cisco | firepower_threat_defense | >= 6.5.0 < 6.6.5 | 6.6.5 |
CVSS provenance
nvdv3.15.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
nvdv2.04.3MEDIUMAV:N/AC:M/Au:N/C:N/I:P/A:N
vendor_cisco5.3MEDIUM
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GHSA
GHSA-9jgg-4q8x-859v: A vulnerability in the identity-based firewall (IDFW) rule processing feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower
ghsa_unreviewed·2022-05-24
CVE-2021-34787 [MEDIUM] CWE-183 GHSA-9jgg-4q8x-859v: A vulnerability in the identity-based firewall (IDFW) rule processing feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower
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
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Identity-Based Rule Bypass Vulnerability
vendor_cisco·2021-10-27·CVSS 5.3
CVE-2021-34787 [MEDIUM] CWE-183 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Identity-Based Rule Bypass Vulnerability
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Identity-Based Rule Bypass Vulnerability
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 ho
Cisco
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Identity-Based Rule Bypass Vulnerability
vendor_cisco·CVSS 3.1
CVE-2021-34787 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Identity-Based Rule Bypass Vulnerability
CVE-2021-34787: Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Identity-Based Rule Bypass Vulnerability
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 u
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2021-10-27
Published