CVE-2022-20730
MediumCVSS 4.0Exploitation Probability (EPSS)
Elevated risk58th percentile - higher than 58% of all known CVEs
Summary
A vulnerability in the Security Intelligence feed feature of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass the Security Intelligence DNS feed. This is due to incorrect feed update processing. An attacker could send traffic through an affected device that should be blocked, to bypass device controls and send traffic to protected systems.
Risk Assessment
The risk is the potential to bypass DNS blocklists and deliver traffic to systems that should be protected, potentially leading to security compromise.
Recommendation
It is recommended to update FTD software to a patched version and verify the proper functioning of Security Intelligence feeds.
Original NVD description (English source)
A vulnerability in the Security Intelligence feed feature of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass the Security Intelligence DNS feed. This vulnerability is due to incorrect feed update processing. An attacker could exploit this vulnerability by sending traffic through an affected device that should be blocked by the affected device. A successful exploit could allow the attacker to bypass device controls and successfully send traffic to devices that are expected to be protected by the affected device.