CVE-2021-34791

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Summary

CVECVE-2021-34791
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-10-27 19:15:00 UTC
Updated2023-11-07 03:36:00 UTC
DescriptionMultiple 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.

Risk And Classification

Problem Types: CWE-20

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Cisco Adaptive Security Appliance All All All All
Operating System Cisco Adaptive Security Appliance Software All All All All
Hardware Cisco Asa 5505 - All All All
Operating System Cisco Asa 5505 Firmware 009.008 All All All
Operating System Cisco Asa 5505 Firmware 009.015 All All All
Hardware Cisco Asa 5512-x - All All All
Operating System Cisco Asa 5512-x Firmware 009.008 All All All
Operating System Cisco Asa 5512-x Firmware 009.015 All All All
Hardware Cisco Asa 5515-x - All All All
Operating System Cisco Asa 5515-x Firmware 009.008 All All All
Operating System Cisco Asa 5515-x Firmware 009.015 All All All
Hardware Cisco Asa 5525-x - All All All
Operating System Cisco Asa 5525-x Firmware 009.008 All All All
Operating System Cisco Asa 5525-x Firmware 009.015 All All All
Hardware Cisco Asa 5545-x - All All All
Operating System Cisco Asa 5545-x Firmware 009.008 All All All
Operating System Cisco Asa 5545-x Firmware 009.015 All All All
Hardware Cisco Asa 5555-x - All All All
Operating System Cisco Asa 5555-x Firmware 009.008 All All All
Operating System Cisco Asa 5555-x Firmware 009.015 All All All
Hardware Cisco Asa 5580 - All All All
Operating System Cisco Asa 5580 Firmware 009.008 All All All
Operating System Cisco Asa 5580 Firmware 009.015 All All All
Hardware Cisco Asa 5585-x - All All All
Operating System Cisco Asa 5585-x Firmware 009.008 All All All
Operating System Cisco Asa 5585-x Firmware 009.015 All All All
Application Cisco Firepower Threat Defense All All All All

References

ReferenceSourceLinkTags
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Application Level Gateway Bypass Vulnerabilities CISCO tools.cisco.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 317094 Cisco Adaptive Security Appliance (ASA) Software Application Level Gateway v Bypass Vulnerabilities (cisco-sa-natalg-bypass-cpKGqkng)
  • 317096 Cisco Firepower Threat Defense (FTD) Software Application Level Gateway (ALG) Bypass Vulnerabilities (cisco-sa-natalg-bypass-cpKGqkng)
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