medium4.7
CVE-2021-34791
Multiple vulnerabilities in the Application Level Gateway (ALG) for the Network Address Translation (NAT) feature of Cisco Adaptive Security Appliance (ASA) So…
Impact
Multiple vulnerabilities in the Application Level Gateway (ALG) for the Network Address Translation (NAT) feature of Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass the ALG and open unauthorized connections with a host located behind the ALG. For more information about these vulnerabilities, see the Details section of this advisory. Note: These vulnerabilities have been publicly discussed as NAT Slipstreaming.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Cisco | Adaptive Security Appliance | before 9.8.4.40 |
| Cisco | Secure Firewall Threat Defense | before 6.4.0.12 from 6.5.0 before 6.6.5 from 6.7.0 before 6.7.0.2 |
| Cisco | Adaptive Security Appliance Software | from 9.12.0 before 9.12.4.18 from 9.13.0 before 9.14.2.15 from 9.15.0 before 9.15.1.15 |
| Cisco | Asa 5512-X Firmware | Versions 009.008, 009.015 |
| Cisco | Asa 5505 Firmware | Versions 009.008, 009.015 |
| Cisco | Asa 5515-X Firmware | Versions 009.008, 009.015 |
| Cisco | Asa 5525-X Firmware | Versions 009.008, 009.015 |
| Cisco | Asa 5545-X Firmware | Versions 009.008, 009.015 |
| Cisco | Asa 5555-X Firmware | Versions 009.008, 009.015 |
| Cisco | Asa 5580 Firmware | Versions 009.008, 009.015 |
| Cisco | Asa 5585-X Firmware | Versions 009.008, 009.015 |