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CVE-2022-20713

MEDIUMCVSS 6.1/10EPSS 1.30%

Last modified

CVE-2022-20713 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. A vulnerability in the VPN web client services component of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to conduct browser-based attacks against users of an affected device. This vulnerability is due to improper validation of input that is passed to the VPN web client services component before being returned to the browser that is in use. EPSS estimates a 1.30% chance of exploitation in the next 30 days.

Description

A vulnerability in the VPN web client services component of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to conduct browser-based attacks against users of an affected device. This vulnerability is due to improper validation of input that is passed to the VPN web client services component before being returned to the browser that is in use. An attacker could exploit this vulnerability by persuading a user to visit a website that is designed to pass malicious requests to a device that is running Cisco ASA Software or Cisco FTD Software and has web services endpoints supporting VPN features enabled. A successful exploit could allow the attacker to reflect malicious input from the affected device to the browser that is in use and conduct browser-based attacks, including cross-site scripting attacks. The attacker could not directly impact the affected device.

Metrics

CVSS 3.1
6.1/10

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

EPSS Probability
1.30%

66.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CiscoFirepower Threat Defense6.2.3
CiscoFirepower Threat Defense6.2.3.1
CiscoFirepower Threat Defense6.2.3.2
CiscoFirepower Threat Defense6.2.3.3
CiscoFirepower Threat Defense6.2.3.4
CiscoFirepower Threat Defense6.2.3.5
CiscoFirepower Threat Defense6.2.3.6
CiscoFirepower Threat Defense6.2.3.7
CiscoFirepower Threat Defense6.2.3.8
CiscoFirepower Threat Defense6.2.3.9
CiscoFirepower Threat Defense6.2.3.10
CiscoFirepower Threat Defense6.2.3.11
CiscoFirepower Threat Defense6.2.3.12
CiscoFirepower Threat Defense6.2.3.13
CiscoFirepower Threat Defense6.2.3.14
CiscoFirepower Threat Defense6.2.3.15
CiscoFirepower Threat Defense6.2.3.16
CiscoFirepower Threat Defense6.2.3.17
CiscoFirepower Threat Defense6.2.3.18
CiscoFirepower Threat Defense6.4.0
CiscoFirepower Threat Defense6.4.0.1
CiscoFirepower Threat Defense6.4.0.2
CiscoFirepower Threat Defense6.4.0.3
CiscoFirepower Threat Defense6.4.0.4
CiscoFirepower Threat Defense6.4.0.5
CiscoFirepower Threat Defense6.4.0.6
CiscoFirepower Threat Defense6.4.0.7
CiscoFirepower Threat Defense6.4.0.8
CiscoFirepower Threat Defense6.4.0.9
CiscoFirepower Threat Defense6.4.0.10
CiscoFirepower Threat Defense6.4.0.11
CiscoFirepower Threat Defense6.4.0.12
CiscoFirepower Threat Defense6.4.0.13
CiscoFirepower Threat Defense6.4.0.14
CiscoFirepower Threat Defense6.4.0.15
CiscoFirepower Threat Defense6.4.0.16
CiscoFirepower Threat Defense6.6.0
CiscoFirepower Threat Defense6.6.0.1
CiscoFirepower Threat Defense6.6.1
CiscoFirepower Threat Defense6.6.3
CiscoFirepower Threat Defense6.6.4
CiscoFirepower Threat Defense6.6.5
CiscoFirepower Threat Defense6.6.5.1
CiscoFirepower Threat Defense6.6.5.2
CiscoFirepower Threat Defense6.6.7
CiscoFirepower Threat Defense6.6.7.1
CiscoFirepower Threat Defense6.7.0
CiscoFirepower Threat Defense6.7.0.1
CiscoFirepower Threat Defense6.7.0.2
CiscoFirepower Threat Defense6.7.0.3

Showing 50 of 221 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2022-20713?
A vulnerability in the VPN web client services component of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to conduct browser-based attacks against users of an affected device. This vulnerability is due to improper validation of input that is passed to the VPN web client services component before being returned to the browser that is in use. An attacker could exploit this vulnerability by persuading a user to visit a website that is designed to pass malicious requests to a device that is running Cisco ASA Software or Cisco FTD Software and has web services endpoints supporting VPN features enabled. A successful exploit could allow the attacker to reflect malicious input from the affected device to the browser that is in use and conduct browser-based attacks, including cross-site scripting attacks. The attacker could not directly impact the affected device.
How severe is CVE-2022-20713?
CVE-2022-20713 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 1.30% probability of exploitation in the next 30 days.
How do I fix CVE-2022-20713?
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.

Are you affected by CVE-2022-20713?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST