CVSS: 5.9EPSS: 96%CPEs: 79EXPL: 1CVE-2023-48795 – ssh: Prefix truncation attack on Binary Packet Protocol (BPP)
https://notcve.org/view.php?id=CVE-2023-48795
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. • http://packetstormsecurity.com/files/176280/Terrapin-SSH-Connection-Weakening.html http://seclists.org/fulldisclosure/2024/Mar/21 http://www.openwall.com/lists/oss-security/2023/12/18/3 http://www.openwall.com/lists/oss-security/2023/12/19/5 http://www.openwall.com/lists/oss-security/2023/12/20/3 http://www.openwall.com/lists/oss-security/2024/03/06/3 http://www.openwall.com/lists/oss-security/2024/04/17/8 https://access.redhat.com/security/cve/cve-2023-48 • CWE-222: Truncation of Security-relevant Information CWE-354: Improper Validation of Integrity Check Value •
CVSS: 10.0EPSS: 1%CPEs: 6EXPL: 1CVE-2020-12651 – SecureCRT Memory Corruption
https://notcve.org/view.php?id=CVE-2020-12651
SecureCRT before 8.7.2 allows remote attackers to execute arbitrary code via an Integer Overflow and a Buffer Overflow because a banner can trigger a line number to CSI functions that exceeds INT_MAX. SecureCRT versiones anteriores a 8.7.2, permite a atacantes remotos ejecutar código arbitrario por medio de un Desbordamiento de Enteros y un desbordamiento del búfer porque una bandera puede activar un número de línea en las funciones CSI que exceden a INT_MAX. SecureCRT suffers from a memory corruption vulnerability in CSI functions. • https://bugs.chromium.org/p/project-zero/issues/detail?id=2033 https://twitter.com/taviso/status/1261079774190919680 https://www.vandyke.com/products/securecrt/history.txt https://www.vandyke.com/support/advisory/index.html • CWE-190: Integer Overflow or Wraparound •
CVSS: 4.6EPSS: 0%CPEs: 5EXPL: 0CVE-2003-0047
https://notcve.org/view.php?id=CVE-2003-0047
SSH2 clients for VanDyke (1) SecureCRT 4.0.2 and 3.4.7, (2) SecureFX 2.1.2 and 2.0.4, and (3) Entunnel 1.0.2 and earlier, do not clear logon credentials from memory, including plaintext passwords, which could allow attackers with access to memory to steal the SSH credentials. Los clientes SSH2 de VanDyke SecureCRT 4.0.2 y 3.4.5, SecureFX 2.1.2 y 2.0.4, y Entunnel 1.02 y anteriores, no borran los credenciales de inicio de sesión de memoria, incluyendo contraseñas en texto claro, lo que podría permitir a atacantes con acceso a memoria robar los credenciales SSH. • http://marc.info/?l=bugtraq&m=104386492422014&w=2 http://www.idefense.com/advisory/01.28.03.txt http://www.securityfocus.com/bid/6726 http://www.securityfocus.com/bid/6727 http://www.securityfocus.com/bid/6728 http://www.securitytracker.com/id?1006010 http://www.securitytracker.com/id?1006011 http://www.securitytracker.com/id?1006012 •
CVSS: 7.5EPSS: 13%CPEs: 19EXPL: 4CVE-2002-1059 – SecureCRT 2.4/3.x/4.0 - SSH1 Identifier String Buffer Overflow
https://notcve.org/view.php?id=CVE-2002-1059
Buffer overflow in Van Dyke SecureCRT SSH client before 3.4.6, and 4.x before 4.0 beta 3, allows an SSH server to execute arbitrary code via a long SSH1 protocol version string. • https://www.exploit-db.com/exploits/21634 https://www.exploit-db.com/exploits/16460 https://www.exploit-db.com/exploits/21635 http://marc.info/?l=bugtraq&m=102744150718462&w=2 http://marc.info/?l=bugtraq&m=102746007908689&w=2 http://www.iss.net/security_center/static/9650.php http://www.osvdb.org/4991 http://www.securityfocus.com/bid/5287 http://www.vandyke.com/products/securecrt/security07-25-02.html •