SSH Terrapin Prefix Truncation Weakness (CVE-2023-48795) in cisco Catalyst 9300
We have run vulnerability cisco Catalyst 9300 and we find the above vulnerability. All software is up to date.
#show ip ssh
SSH Enabled - version 2.0
Authentication methods:publickey,keyboard-interactive,password
Authentication Publickey Algorithms:ssh-rsa,ecdsa-sha2-nistp256,ecdsa-sha2-nistp384,ecdsa-sha2-nistp521,ssh-ed25519,x509v3-ecdsa-sha2-nistp256,x509v3-ecdsa-sha2-nistp384,x509v3-ecdsa-sha2-nistp521,rsa-sha2-256,rsa-sha2-512,x509v3-rsa2048-sha256
Hostkey Algorithms:rsa-sha2-512,rsa-sha2-256,ssh-rsa
Encryption Algorithms:chacha20-poly1305@openssh.com,aes128-gcm@openssh.com,aes256-gcm@openssh.com,aes128-gcm,aes256-gcm,aes128-ctr,aes192-ctr,aes256-ctr
MAC Algorithms:hmac-sha2-256-etm@openssh.com,hmac-sha2-512-etm@openssh.com
KEX Algorithms:curve25519-sha256,curve25519-sha256@libssh.org,ecdh-sha2-nistp256,ecdh-sha2-nistp384,ecdh-sha2-nistp521,diffie-hellman-group14-sha256,diffie-hellman-group16-sha512
Authentication timeout: 60 secs; Authentication retries: 2
Minimum expected Diffie Hellman key size : 2048 bits
IOS Keys in SECSH format(ssh-rsa, base64 encoded): TP-self-signed-1724981029
Modulus Size : 2048 bits
ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQC9AhvuJYMMw390tNL30RGLuDac6Sic5NgxwBbJYgUA
FXfh1P6UVSIpGD9QSgJolIDcyAXiB8k0YA6YkC/pyuaFE7Fi61o7xtpMmtRWa/WC4FwdX647GC23adLr
KL5NR38+GOKcNHPTDgsKmXyuTytfsGJ3a+15DF7fb2iF4L8neo3WzhQ/1yokkcNGolcFJwLsm4RLx1nY
yU/68VOSHsD2NEJjZMIlzSkkRYNjaz9RLNtzjDFpg5/DaqJ3X2rWoGskaQaszlaw+OrI3T5bbB+R2OuN
umK3Bc16KZd1/zSGg2SCzDGODp0oVP4JIYG+iOjZX0+BoGcqftbxKUQnh50t
Thanks in advances
