Vulnerabilities (CVE)

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Total 46 CVE
CVE Vendors Products Updated CVSS v2 CVSS v3
CVE-2023-48795 43 9bis, Apache, Apple and 40 more 69 Kitty, Sshd, Sshj and 66 more 2024-05-01 N/A 5.9 MEDIUM
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. This occurs because the SSH Binary Packet Protocol (BPP), implemented by these extensions, mishandles the handshake phase and mishandles use of sequence numbers. For example, there is an effective attack against SSH's use of ChaCha20-Poly1305 (and CBC with Encrypt-then-MAC). The bypass occurs in chacha20-poly1305@openssh.com and (if CBC is used) the -etm@openssh.com MAC algorithms. This also affects Maverick Synergy Java SSH API before 3.1.0-SNAPSHOT, Dropbear through 2022.83, Ssh before 5.1.1 in Erlang/OTP, PuTTY before 0.80, AsyncSSH before 2.14.2, golang.org/x/crypto before 0.17.0, libssh before 0.10.6, libssh2 through 1.11.0, Thorn Tech SFTP Gateway before 3.4.6, Tera Term before 5.1, Paramiko before 3.4.0, jsch before 0.2.15, SFTPGo before 2.5.6, Netgate pfSense Plus through 23.09.1, Netgate pfSense CE through 2.7.2, HPN-SSH through 18.2.0, ProFTPD before 1.3.8b (and before 1.3.9rc2), ORYX CycloneSSH before 2.3.4, NetSarang XShell 7 before Build 0144, CrushFTP before 10.6.0, ConnectBot SSH library before 2.2.22, Apache MINA sshd through 2.11.0, sshj through 0.37.0, TinySSH through 20230101, trilead-ssh2 6401, LANCOM LCOS and LANconfig, FileZilla before 3.66.4, Nova before 11.8, PKIX-SSH before 14.4, SecureCRT before 9.4.3, Transmit5 before 5.10.4, Win32-OpenSSH before 9.5.0.0p1-Beta, WinSCP before 6.2.2, Bitvise SSH Server before 9.32, Bitvise SSH Client before 9.33, KiTTY through 0.76.1.13, the net-ssh gem 7.2.0 for Ruby, the mscdex ssh2 module before 1.15.0 for Node.js, the thrussh library before 0.35.1 for Rust, and the Russh crate before 0.40.2 for Rust.
CVE-2011-0766 2 Erlang, Ssh 3 Crypto, Erlang\/otp, Ssh 2023-09-25 7.8 HIGH N/A
The random number generator in the Crypto application before 2.0.2.2, and SSH before 2.0.5, as used in the Erlang/OTP ssh library before R14B03, uses predictable seeds based on the current time, which makes it easier for remote attackers to guess DSA host and SSH session keys.
CVE-2000-0143 2 Openbsd, Ssh 2 Openssh, Ssh 2022-08-17 4.6 MEDIUM N/A
The SSH protocol server sshd allows local users without shell access to redirect a TCP connection through a service that uses the standard system password database for authentication, such as POP or FTP.
CVE-1999-0398 1 Ssh 2 Ssh, Ssh2 2022-08-17 4.6 MEDIUM N/A
In some instances of SSH 1.2.27 and 2.0.11 on Linux systems, SSH will allow users with expired accounts to login.
CVE-1999-0310 1 Ssh 1 Ssh 2022-08-17 7.5 HIGH N/A
SSH 1.2.25 on HP-UX allows access to new user accounts.
CVE-1999-0013 1 Ssh 1 Ssh 2022-08-17 7.5 HIGH N/A
Stolen credentials from SSH clients via ssh-agent program, allowing other local users to access remote accounts belonging to the ssh-agent user.
CVE-2021-27892 2 Microsoft, Ssh 4 Windows, Tectia Client, Tectia Connectsecure and 1 more 2022-07-12 4.6 MEDIUM 7.8 HIGH
SSH Tectia Client and Server before 6.4.19 on Windows allow local privilege escalation. ConnectSecure on Windows is affected.
CVE-2021-27893 2 Microsoft, Ssh 4 Windows, Tectia Client, Tectia Connectsecure and 1 more 2022-07-12 4.4 MEDIUM 7.0 HIGH
SSH Tectia Client and Server before 6.4.19 on Windows allow local privilege escalation in nonstandard conditions. ConnectSecure on Windows is affected.
CVE-2021-27891 2 Microsoft, Ssh 4 Windows, Tectia Client, Tectia Connectsecure and 1 more 2021-03-23 6.5 MEDIUM 8.8 HIGH
SSH Tectia Client and Server before 6.4.19 on Windows have weak key generation. ConnectSecure on Windows is affected.
CVE-2007-5616 3 Linux, Opengroup, Ssh 4 Linux Kernel, Unix, Tectia Client and 1 more 2020-09-28 7.2 HIGH N/A
ssh-signer in SSH Tectia Client and Server 5.x before 5.2.4, and 5.3.x before 5.3.6, on Unix and Linux allows local users to gain privileges via unspecified vectors.
CVE-2006-5484 1 Ssh 4 Tectia Client, Tectia Connector, Tectia Manager and 1 more 2019-08-28 5.0 MEDIUM N/A
SSH Tectia Client/Server/Connector 5.1.0 and earlier, Manager 2.2.0 and earlier, and other products, when using an RSA key with exponent 3, removes PKCS-1 padding before generating a hash, which allows remote attackers to forge a PKCS #1 v1.5 signature that is signed by that RSA key and prevents Tectia from correctly verifying X.509 and other certificates that use PKCS #1, a similar issue to CVE-2006-4339.
CVE-2008-5161 2 Openbsd, Ssh 5 Openssh, Tectia Client, Tectia Connector and 2 more 2018-10-11 2.6 LOW N/A
Error handling in the SSH protocol in (1) SSH Tectia Client and Server and Connector 4.0 through 4.4.11, 5.0 through 5.2.4, and 5.3 through 5.3.8; Client and Server and ConnectSecure 6.0 through 6.0.4; Server for Linux on IBM System z 6.0.4; Server for IBM z/OS 5.5.1 and earlier, 6.0.0, and 6.0.1; and Client 4.0-J through 4.3.3-J and 4.0-K through 4.3.10-K; and (2) OpenSSH 4.7p1 and possibly other versions, when using a block cipher algorithm in Cipher Block Chaining (CBC) mode, makes it easier for remote attackers to recover certain plaintext data from an arbitrary block of ciphertext in an SSH session via unknown vectors.
CVE-2001-0361 2 Openbsd, Ssh 2 Openssh, Ssh 2018-05-03 4.0 MEDIUM N/A
Implementations of SSH version 1.5, including (1) OpenSSH up to version 2.3.0, (2) AppGate, and (3) ssh-1 up to version 1.2.31, in certain configurations, allow a remote attacker to decrypt and/or alter traffic via a "Bleichenbacher attack" on PKCS#1 version 1.5.
CVE-2001-0144 2 Openbsd, Ssh 2 Openssh, Ssh 2018-05-03 10.0 HIGH N/A
CORE SDI SSH1 CRC-32 compensation attack detector allows remote attackers to execute arbitrary commands on an SSH server or client via an integer overflow.
CVE-2000-0992 2 Openbsd, Ssh 2 Openssh, Ssh 2018-05-03 5.0 MEDIUM N/A
Directory traversal vulnerability in scp in sshd 1.2.xx allows a remote malicious scp server to overwrite arbitrary files via a .. (dot dot) attack.
CVE-1999-1231 1 Ssh 1 Ssh2 2017-12-19 5.0 MEDIUM N/A
ssh 2.0.12, and possibly other versions, allows valid user names to attempt to enter the correct password multiple times, but only prompts an invalid user name for a password once, which allows remote attackers to determine user account names on the server.
CVE-1999-1029 1 Ssh 1 Ssh2 2017-12-19 7.5 HIGH N/A
SSH server (sshd2) before 2.0.12 does not properly record login attempts if the connection is closed before the maximum number of tries, allowing a remote attacker to guess the password without showing up in the audit logs.
CVE-2001-0553 1 Ssh 1 Secure Shell 2017-10-10 7.2 HIGH N/A
SSH Secure Shell 3.0.0 on Unix systems does not properly perform password authentication to the sshd2 daemon, which allows local users to gain access to accounts with short password fields, such as locked accounts that use "NP" in the password field.
CVE-2001-0364 1 Ssh 1 Ssh2 2017-10-10 5.0 MEDIUM N/A
SSH Communications Security sshd 2.4 for Windows allows remote attackers to create a denial of service via a large number of simultaneous connections.
CVE-2001-0259 1 Ssh 1 Ssh 2017-10-10 3.6 LOW N/A
ssh-keygen in ssh 1.2.27 - 1.2.30 with Secure-RPC can allow local attackers to recover a SUN-DES-1 magic phrase generated by another user, which the attacker can use to decrypt that user's private key file.