CVE-2022-20743

Secure Firewall Management Center vulnerability

CVSS

6.5

EPSS

3.8%

EPSS pct

89th

Exploited

No known

A vulnerability in the web management interface of Cisco Firepower Management Center (FMC) Software could allow an authenticated, remote attacker to bypass security protections and upload malicious files to the affected system. This vulnerability is due to improper validation of files uploaded to the web management interface of Cisco FMC Software. An attacker could exploit this vulnerability by uploading a maliciously crafted file to a device running affected software. A successful exploit could allow the attacker to store malicious files on the device, which they could access later to conduct additional attacks, including executing arbitrary code on the affected device with root privileges.

Affected vendor

Cisco

Affected product

Secure Firewall Management Center

CVSS vector

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

Weakness type (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

Published

2022-05-03

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring low privileges, no user interaction. Successful exploitation leads to high impact to integrity.

Its EPSS score of 3.8% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 89% of all scored CVEs.

Check your external exposure to CVE-2022-20743

Confirm whether Cisco Secure Firewall Management Center is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2022-20743.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2022-20743

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2022-20743 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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