Strix
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CVE-2022-20843

MEDIUMCVSS 4.8/10EPSS 0.45%

Last modified

CVE-2022-20843 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. Multiple vulnerabilities in the web-based management interface of Cisco Firepower Management Center (FMC) Software could allow an authenticated, remote attacker to conduct a stored cross-site scripting (XSS) attack against a user of the interface of an affected device. These vulnerabilities are due to insufficient validation of user-supplied input by the web-based management interface. An attacker could exploit these vulnerabilities by inserting crafted input into various data fields in an affected interface. EPSS estimates a 0.45% chance of exploitation in the next 30 days.

Description

Multiple vulnerabilities in the web-based management interface of Cisco Firepower Management Center (FMC) Software could allow an authenticated, remote attacker to conduct a stored cross-site scripting (XSS) attack against a user of the interface of an affected device. These vulnerabilities are due to insufficient validation of user-supplied input by the web-based management interface. An attacker could exploit these vulnerabilities by inserting crafted input into various data fields in an affected interface. A successful exploit could allow the attacker to execute arbitrary script code in the context of the interface, or access sensitive, browser-based information. In some cases, it is also possible to cause a temporary availability impact to portions of the FMC Dashboard.

Metrics

CVSS 3.1
4.8/10

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

EPSS Probability
0.45%

35.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CiscoSecure Firewall Management Center6.1.0
CiscoSecure Firewall Management Center6.1.0.1
CiscoSecure Firewall Management Center6.1.0.2
CiscoSecure Firewall Management Center6.1.0.3
CiscoSecure Firewall Management Center6.1.0.4
CiscoSecure Firewall Management Center6.1.0.5
CiscoSecure Firewall Management Center6.1.0.6
CiscoSecure Firewall Management Center6.1.0.7
CiscoSecure Firewall Management Center6.2.0
CiscoSecure Firewall Management Center6.2.0.1
CiscoSecure Firewall Management Center6.2.0.2
CiscoSecure Firewall Management Center6.2.0.3
CiscoSecure Firewall Management Center6.2.0.4
CiscoSecure Firewall Management Center6.2.0.5
CiscoSecure Firewall Management Center6.2.0.6
CiscoSecure Firewall Management Center6.2.1
CiscoSecure Firewall Management Center6.2.2
CiscoSecure Firewall Management Center6.2.2.1
CiscoSecure Firewall Management Center6.2.2.2
CiscoSecure Firewall Management Center6.2.2.3
CiscoSecure Firewall Management Center6.2.2.4
CiscoSecure Firewall Management Center6.2.2.5
CiscoSecure Firewall Management Center6.2.3
CiscoSecure Firewall Management Center6.2.3.1
CiscoSecure Firewall Management Center6.2.3.2
CiscoSecure Firewall Management Center6.2.3.3
CiscoSecure Firewall Management Center6.2.3.4
CiscoSecure Firewall Management Center6.2.3.5
CiscoSecure Firewall Management Center6.2.3.6
CiscoSecure Firewall Management Center6.2.3.7
CiscoSecure Firewall Management Center6.2.3.9
CiscoSecure Firewall Management Center6.2.3.10
CiscoSecure Firewall Management Center6.2.3.11
CiscoSecure Firewall Management Center6.2.3.12
CiscoSecure Firewall Management Center6.2.3.13
CiscoSecure Firewall Management Center6.2.3.14
CiscoSecure Firewall Management Center6.2.3.15
CiscoSecure Firewall Management Center6.2.3.16
CiscoSecure Firewall Management Center6.2.3.17
CiscoSecure Firewall Management Center6.2.3.18
CiscoSecure Firewall Management Center6.3.0
CiscoSecure Firewall Management Center6.3.0.1
CiscoSecure Firewall Management Center6.3.0.2
CiscoSecure Firewall Management Center6.3.0.3
CiscoSecure Firewall Management Center6.3.0.4
CiscoSecure Firewall Management Center6.3.0.5
CiscoSecure Firewall Management Center6.4.0
CiscoSecure Firewall Management Center6.4.0.1
CiscoSecure Firewall Management Center6.4.0.2
CiscoSecure Firewall Management Center6.4.0.3

Showing 50 of 92 affected configurations. See NVD for the full list.

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2022-20843?
Multiple vulnerabilities in the web-based management interface of Cisco Firepower Management Center (FMC) Software could allow an authenticated, remote attacker to conduct a stored cross-site scripting (XSS) attack against a user of the interface of an affected device. These vulnerabilities are due to insufficient validation of user-supplied input by the web-based management interface. An attacker could exploit these vulnerabilities by inserting crafted input into various data fields in an affected interface. A successful exploit could allow the attacker to execute arbitrary script code in the context of the interface, or access sensitive, browser-based information. In some cases, it is also possible to cause a temporary availability impact to portions of the FMC Dashboard.
How severe is CVE-2022-20843?
CVE-2022-20843 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 0.45% probability of exploitation in the next 30 days.
How do I fix CVE-2022-20843?
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-2022-20843?

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

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Source: NVD / NIST