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2023-09-06
Cisco ASA and FTD Remote Access VPN Unauthorized Access and Brute Force Vulnerability (CVE-2023-20269) Security Advisory
[Affected Scope] Remote access VPN feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software.
[Impact] Improper AAA separation allows unauthenticated remote attackers to conduct brute-force attacks to identify valid credentials or establish unauthorized clientless SSL VPN sessions.
[Mitigation] Apply official software updates from Cisco, or implement workarounds by redirecting default connection profile authentication to a loopback address and enforcing MFA.