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CVE-2022-20947

HIGHCVSS 7.5/10EPSS 0.87%

Last modified

CVE-2022-20947 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A vulnerability in dynamic access policies (DAP) functionality of Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. This vulnerability is due to improper processing of HostScan data received from the Posture (HostScan) module. An attacker could exploit this vulnerability by sending crafted HostScan data to an affected device. EPSS estimates a 0.87% chance of exploitation in the next 30 days.

Description

A vulnerability in dynamic access policies (DAP) functionality of Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. This vulnerability is due to improper processing of HostScan data received from the Posture (HostScan) module. An attacker could exploit this vulnerability by sending crafted HostScan data to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ftd-dap-dos-GhYZBxDU ["https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ftd-dap-dos-GhYZBxDU"] This advisory is part of the November 2022 release of the Cisco ASA, FTD, and FMC Security Advisory Bundled publication.

Metrics

CVSS 3.1
7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability
0.87%

55.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CiscoAdaptive Security Appliance Software9.6.1
CiscoAdaptive Security Appliance Software9.6.1.3
CiscoAdaptive Security Appliance Software9.6.1.5
CiscoAdaptive Security Appliance Software9.6.1.10
CiscoAdaptive Security Appliance Software9.6.2
CiscoAdaptive Security Appliance Software9.6.2.1
CiscoAdaptive Security Appliance Software9.6.2.2
CiscoAdaptive Security Appliance Software9.6.2.3
CiscoAdaptive Security Appliance Software9.6.2.7
CiscoAdaptive Security Appliance Software9.6.2.11
CiscoAdaptive Security Appliance Software9.6.2.13
CiscoAdaptive Security Appliance Software9.6.2.22
CiscoAdaptive Security Appliance Software9.6.2.23
CiscoAdaptive Security Appliance Software9.6.3
CiscoAdaptive Security Appliance Software9.6.3.1
CiscoAdaptive Security Appliance Software9.6.3.3
CiscoAdaptive Security Appliance Software9.6.3.8
CiscoAdaptive Security Appliance Software9.6.3.9
CiscoAdaptive Security Appliance Software9.6.3.11
CiscoAdaptive Security Appliance Software9.6.3.12
CiscoAdaptive Security Appliance Software9.6.3.14
CiscoAdaptive Security Appliance Software9.6.3.17
CiscoAdaptive Security Appliance Software9.6.3.20
CiscoAdaptive Security Appliance Software9.6.4
CiscoAdaptive Security Appliance Software9.6.4.3
CiscoAdaptive Security Appliance Software9.6.4.5
CiscoAdaptive Security Appliance Software9.6.4.6
CiscoAdaptive Security Appliance Software9.6.4.8
CiscoAdaptive Security Appliance Software9.6.4.10
CiscoAdaptive Security Appliance Software9.6.4.12
CiscoAdaptive Security Appliance Software9.6.4.14
CiscoAdaptive Security Appliance Software9.6.4.17
CiscoAdaptive Security Appliance Software9.6.4.18
CiscoAdaptive Security Appliance Software9.6.4.20
CiscoAdaptive Security Appliance Software9.6.4.22
CiscoAdaptive Security Appliance Software9.6.4.23
CiscoAdaptive Security Appliance Software9.6.4.24
CiscoAdaptive Security Appliance Software9.6.4.25
CiscoAdaptive Security Appliance Software9.6.4.29
CiscoAdaptive Security Appliance Software9.6.4.30
CiscoAdaptive Security Appliance Software9.6.4.34
CiscoAdaptive Security Appliance Software9.6.4.36
CiscoAdaptive Security Appliance Software9.6.4.40
CiscoAdaptive Security Appliance Software9.6.4.41
CiscoAdaptive Security Appliance Software9.6.4.42
CiscoAdaptive Security Appliance Software9.6.4.45
CiscoAdaptive Security Appliance Software9.7.1
CiscoAdaptive Security Appliance Software9.7.1.2
CiscoAdaptive Security Appliance Software9.7.1.4
CiscoAdaptive Security Appliance Software9.7.1.8

Showing 50 of 293 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2022-20947?
A vulnerability in dynamic access policies (DAP) functionality of Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. This vulnerability is due to improper processing of HostScan data received from the Posture (HostScan) module. An attacker could exploit this vulnerability by sending crafted HostScan data to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ftd-dap-dos-GhYZBxDU ["https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-ftd-dap-dos-GhYZBxDU"] This advisory is part of the November 2022 release of the Cisco ASA, FTD, and FMC Security Advisory Bundled publication.
How severe is CVE-2022-20947?
CVE-2022-20947 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.87% probability of exploitation in the next 30 days.
How do I fix CVE-2022-20947?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST