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: 4%CPEs: 16EXPL: 0CVE-2002-1360
https://notcve.org/view.php?id=CVE-2002-1360
Multiple SSH2 servers and clients do not properly handle strings with null characters in them when the string length is specified by a length field, which could allow remote attackers to cause a denial of service or possibly execute arbitrary code due to interactions with the use of null-terminated strings as implemented using languages such as C, as demonstrated by the SSHredder SSH protocol test suite. • http://archives.neohapsis.com/archives/vulnwatch/2002-q4/0110.html http://securitytracker.com/id?1005812 http://securitytracker.com/id?1005813 http://www.cert.org/advisories/CA-2002-36.html https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5797 • CWE-20: Improper Input Validation •
CVSS: 10.0EPSS: 19%CPEs: 16EXPL: 0CVE-2002-1357
https://notcve.org/view.php?id=CVE-2002-1357
Multiple SSH2 servers and clients do not properly handle packets or data elements with incorrect length specifiers, which may allow remote attackers to cause a denial of service or possibly execute arbitrary code, as demonstrated by the SSHredder SSH protocol test suite. • http://archives.neohapsis.com/archives/vulnwatch/2002-q4/0110.html http://securitytracker.com/id?1005812 http://securitytracker.com/id?1005813 http://www.cert.org/advisories/CA-2002-36.html http://www.kb.cert.org/vuls/id/389665 http://www.securityfocus.com/bid/6405 https://exchange.xforce.ibmcloud.com/vulnerabilities/10868 https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5849 • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer •
CVSS: 10.0EPSS: 97%CPEs: 16EXPL: 2CVE-2002-1359 – PuTTy.exe 0.53 - Remote Buffer Overflow
https://notcve.org/view.php?id=CVE-2002-1359
Multiple SSH2 servers and clients do not properly handle large packets or large fields, which may allow remote attackers to cause a denial of service or possibly execute arbitrary code via buffer overflow attacks, as demonstrated by the SSHredder SSH protocol test suite. • https://www.exploit-db.com/exploits/16463 https://www.exploit-db.com/exploits/1788 http://archives.neohapsis.com/archives/vulnwatch/2002-q4/0110.html http://securitytracker.com/id?1005812 http://securitytracker.com/id?1005813 http://www.cert.org/advisories/CA-2002-36.html http://www.securityfocus.com/bid/6407 https://exchange.xforce.ibmcloud.com/vulnerabilities/10870 https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5848 • CWE-20: Improper Input Validation •
CVSS: 10.0EPSS: 4%CPEs: 16EXPL: 0CVE-2002-1358
https://notcve.org/view.php?id=CVE-2002-1358
Multiple SSH2 servers and clients do not properly handle lists with empty elements or strings, which may allow remote attackers to cause a denial of service or possibly execute arbitrary code, as demonstrated by the SSHredder SSH protocol test suite. • http://archives.neohapsis.com/archives/vulnwatch/2002-q4/0110.html http://securitytracker.com/id?1005812 http://securitytracker.com/id?1005813 http://www.cert.org/advisories/CA-2002-36.html https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5721 • CWE-20: Improper Input Validation •