(Note the similarity in numbers) A vulnerability in Cisco RV series routers that allows remote code execution. Are you referring to a specific CTF challenge GitHub repository where you saw this name? Providing the
target = "192.168.1.1" s = socket.socket() s.connect((target, 22))
Given the severity, immediate action is required to defend against SSH20Cisco125. 1. Identify Affected Devices ssh20cisco125 vulnerability exclusive
Device(config)# ip access-list standard SSH_ADMINS Device(config-std-nacl)# permit 10.100.50.0 0.0.0.255 Device(config-std-nacl)# exit Device(config)# line vty 0 4 Device(config-line)# access-class SSH_ADMINS in Device(config-line)# transport input ssh Use code with caution. 4. Implement Session Timeouts and Connection Limits
The bug triggers during the initial SSH key exchange and message-handling phase. An unauthenticated remote attacker can inject structurally malformed or out-of-order SSH protocol sequences. (Note the similarity in numbers) A vulnerability in
: It involves insufficient validation of cryptographic signatures when SSH public-key authentication is enabled.
When a standard SSH2 client connects, the following happens: Implement Session Timeouts and Connection Limits The bug
The existence of a proprietary SSH stack implies that Cisco has deviated from standard SSH implementations, potentially introducing unique vulnerabilities not found in mainstream SSH implementations. Organizations should audit whether they rely on SSH key-based authentication for ASA devices and consider implementing additional authentication factors.