Vulnerabilities > Asyncssh Project
| Improper Validation of Integrity Check Value vulnerability in multiple products
The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows remote attackers to bypass integrity checks such that some packets are omitted (from the extension negotiation message), and a client and server may consequently end up with a connection for which some security features have been downgraded or disabled, aka a Terrapin attack.
high complexityopenbsd putty filezilla-project microsoft panic roumenpetrov winscp bitvise lancom-systems vandyke libssh net-ssh ssh2-project proftpd freebsd crates tera-term-project oryx-embedded crushftp netsarang paramiko redhat golang russh-project sftpgo-project erlang matez libssh2 asyncssh-project dropbear-ssh-project jadaptive ssh thorntech netgate connectbot apache tinyssh trilead kitty-project gentoo CWE-354
| Insufficient Verification of Data Authenticity vulnerability in Asyncssh Project Asyncssh
An issue in AsyncSSH before 2.14.1 allows attackers to control the extension info message (RFC 8308) via a man-in-the-middle attack, aka a "Rogue Extension Negotiation."
| Authorization Bypass Through User-Controlled Key vulnerability in Asyncssh Project Asyncssh
An issue in AsyncSSH before 2.14.1 allows attackers to control the remote end of an SSH client session via packet injection/removal and shell emulation, aka a "Rogue Session Attack."
| Improper Authentication vulnerability in Asyncssh Project Asyncssh
The SSH server implementation of AsyncSSH before 1.12.1 does not properly check whether authentication is completed before processing other requests.