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.
Max CVSS
5.9
EPSS Score
69.47%
Published
2023-12-18
Updated
2024-03-13
XLPD v7.0.0094 and below contains an unquoted service path vulnerability which allows local users to launch processes with elevated privileges.
Max CVSS
7.8
EPSS Score
0.04%
Published
2022-06-29
Updated
2022-07-08
Xshell v7.0.0099 and below contains a binary hijack vulnerability which allows attackers to execute arbitrary code via a crafted .exe file.
Max CVSS
6.9
EPSS Score
0.04%
Published
2022-03-31
Updated
2022-04-08
Xlpd v7.0.0094 and below contains a binary hijack vulnerability which allows attackers to execute arbitrary code via a crafted .exe file.
Max CVSS
6.9
EPSS Score
0.04%
Published
2022-03-31
Updated
2022-04-08
Xmanager v7.0.0096 and below contains a binary hijack vulnerability which allows attackers to execute arbitrary code via a crafted .exe file.
Max CVSS
6.9
EPSS Score
0.04%
Published
2022-03-31
Updated
2022-04-08
Xftp 7.0.0088p and below contains a binary hijack vulnerability which allows attackers to execute arbitrary code via a crafted .exe file.
Max CVSS
6.9
EPSS Score
0.05%
Published
2022-03-31
Updated
2022-04-08
Xshell before 7.0.0.76 allows attackers to cause a crash by triggering rapid changes to the title bar.
Max CVSS
7.5
EPSS Score
0.09%
Published
2021-10-07
Updated
2021-10-15
NetSarang Xshell 7 before Build 0077 includes unintended code strings in paste operations.
Max CVSS
5.3
EPSS Score
0.07%
Published
2021-08-15
Updated
2022-07-12
NetSarang XFTP Client 6.0149 and earlier version contains a buffer overflow vulnerability caused by improper boundary checks when copying file name from an attacker controlled FTP server. That leads attacker to execute arbitrary code by sending a crafted filename.
Max CVSS
9.8
EPSS Score
0.45%
Published
2019-10-10
Updated
2019-10-16
NetSarang Xlpd 4 Build 0100 and NetSarang Xmanager Enterprise 4 Build 0186 allow remote attackers to cause a denial of service (daemon crash) via a malformed LPD request.
Max CVSS
5.0
EPSS Score
4.85%
Published
2012-02-14
Updated
2017-08-29
NetSarang Xlpd 2.1 allows remote attackers to cause a denial of service (crash) via a large number of connections from the same IP address.
Max CVSS
5.0
EPSS Score
1.30%
Published
2006-01-09
Updated
2017-07-20
11 vulnerabilities found
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