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CVE-2022-20759

HIGHCVSS 8.8/10EPSS 29.22%

Last modified

CVE-2022-20759 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. A vulnerability in the web services interface for remote access VPN features of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, but unprivileged, remote attacker to elevate privileges to level 15. This vulnerability is due to improper separation of authentication and authorization scopes. EPSS estimates a 29.22% chance of exploitation in the next 30 days.

Description

A vulnerability in the web services interface for remote access VPN features of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, but unprivileged, remote attacker to elevate privileges to level 15. This vulnerability is due to improper separation of authentication and authorization scopes. An attacker could exploit this vulnerability by sending crafted HTTPS messages to the web services interface of an affected device. A successful exploit could allow the attacker to gain privilege level 15 access to the web management interface of the device. This includes privilege level 15 access to the device using management tools like the Cisco Adaptive Security Device Manager (ASDM) or the Cisco Security Manager (CSM). Note: With Cisco FTD Software, the impact is lower than the CVSS score suggests because the affected web management interface allows for read access only.

Metrics

CVSS 3.1
8.8/10

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

EPSS Probability
29.22%

98.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CiscoSecure Firewall Threat Defense< 6.4.0.15
CiscoSecure Firewall Threat Defense>= 6.5.0, < 6.6.5.2
CiscoSecure Firewall Threat Defense>= 6.7.0, < 7.0.2
CiscoSecure Firewall Threat Defense7.1.0
CiscoAdaptive Security Appliance Software< 9.12.4.38
CiscoAdaptive Security Appliance Software>= 9.13.0, < 9.14.4
CiscoAdaptive Security Appliance Software>= 9.15.0, < 9.15.1.21
CiscoAdaptive Security Appliance Software>= 9.16.0, < 9.16.2.14
CiscoAdaptive Security Appliance Software>= 9.17.0, < 9.17.1.7

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2022-20759?
A vulnerability in the web services interface for remote access VPN features of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, but unprivileged, remote attacker to elevate privileges to level 15. This vulnerability is due to improper separation of authentication and authorization scopes. An attacker could exploit this vulnerability by sending crafted HTTPS messages to the web services interface of an affected device. A successful exploit could allow the attacker to gain privilege level 15 access to the web management interface of the device. This includes privilege level 15 access to the device using management tools like the Cisco Adaptive Security Device Manager (ASDM) or the Cisco Security Manager (CSM). Note: With Cisco FTD Software, the impact is lower than the CVSS score suggests because the affected web management interface allows for read access only.
How severe is CVE-2022-20759?
CVE-2022-20759 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 29.22% probability of exploitation in the next 30 days.
How do I fix CVE-2022-20759?
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