CVE-2021-34787
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.
EPSS 1.15% · 78.9th percentile
Risk Scores
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| cisco | asa_5580_firmware | 009.012, 009.009 |
| cisco | asa_5512-x_firmware | 009.012, 009.009 |
| cisco | asa_5555-x_firmware | 009.009, 009.012 |
| cisco | asa_5505_firmware | 009.009, 009.012 |
| cisco | adaptive_security_appliance | 0 |
| cisco | asa_5525-x_firmware | 009.012, 009.009 |
| cisco | asa_5515-x_firmware | 009.009, 009.012 |
| cisco | asa_5545-x_firmware | 009.012, 009.009 |
| Cisco | Cisco Adaptive Security Appliance (ASA) Software | n/a |
| cisco | asa_5585-x_firmware | 009.012, 009.009 |
| cisco | adaptive_security_appliance_software | 9.16.0, 9.13.0, 9.9.0 |
| cisco | firepower_threat_defense | 7.0.0, 0, 6.5.0 |
Exploit Intelligence
Timeline
- Oct 27, 2021 CVE Published
- Oct 28, 2021 EPSS Score
- Dec 23, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 17, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- Apr 14, 2022 EPSS Score
- Jun 9, 2022 EPSS Score
- Sep 30, 2022 EPSS Score
- Nov 25, 2022 EPSS Score
- Jan 20, 2023 EPSS Score
- Mar 7, 2023 EPSS Score