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CVE-2023-20269 is an unauthorized access vulnerability in the remote access VPN feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software. The flaw is caused by improper separation of authentication, authorization, and accounting (AAA) between the remote access VPN feature and the HTTPS management and site-to-site VPN features. By specifying a default connection profile or tunnel group during authentication attempts, an unauthenticated remote attacker can conduct brute-force attempts to identify valid username and password combinations against local accounts while bypassing the configured maximum login-attempt restrictions associated with the affected VPN workflow. In addition, an authenticated remote attacker using valid credentials can establish a clientless SSL VPN session as an unauthorized user. Cisco noted that the clientless SSL VPN session impact applies to Cisco ASA Software Release 9.16 and earlier. The vulnerability does not itself bypass authentication; successful session establishment still requires valid credentials, including a valid second factor where multi-factor authentication is configured.
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26 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A vulnerability identified as CVE-2023-20269 referenced as an MFA exploitation vector used for initial access in Akira ransomware campaigns.
A Cisco ASA/FTD vulnerability described as a zero-day that allows brute-force attacks against AAA functions without rate limiting, enabling Akira initial access against VPN endpoints lacking MFA.
A Cisco ASA/FTD zero-day vulnerability cited as exploited by Akira for initial access via exposed VPN or remote access services.
A vulnerability in Cisco ASA VPN infrastructure that Akira actors likely exploited to gain unauthorized remote access VPN access for initial intrusion.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.