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: 6.5EPSS: 0%CPEs: 5EXPL: 0CVE-2023-1664 – keycloak: Untrusted Certificate Validation
https://notcve.org/view.php?id=CVE-2023-1664
A flaw was found in Keycloak. This flaw depends on a non-default configuration "Revalidate Client Certificate" to be enabled and the reverse proxy is not validating the certificate before Keycloak. Using this method an attacker may choose the certificate which will be validated by the server. If this happens and the KC_SPI_TRUSTSTORE_FILE_FILE variable is missing/misconfigured, any trustfile may be accepted with the logging information of "Cannot validate client certificate trust: Truststore not available". This may not impact availability as the attacker would have no access to the server, but consumer applications Integrity or Confidentiality may be impacted considering a possible access to them. • https://bugzilla.redhat.com/show_bug.cgi?id=2182196&comment#0 https://access.redhat.com/security/cve/CVE-2023-1664 https://bugzilla.redhat.com/show_bug.cgi?id=2182196 • CWE-295: Improper Certificate Validation •
CVSS: 3.3EPSS: 0%CPEs: 4EXPL: 0CVE-2020-10734
https://notcve.org/view.php?id=CVE-2020-10734
A vulnerability was found in keycloak in the way that the OIDC logout endpoint does not have CSRF protection. Versions shipped with Red Hat Fuse 7, Red Hat Single Sign-on 7, and Red Hat Openshift Application Runtimes are believed to be vulnerable. Se encontró una vulnerabilidad en keycloak en la forma en que el endpoint de cierre de sesión OIDC no tiene protección CSRF. Se cree que las versiones enviadas con Red Hat Fuse 7, Red Hat Single Sign-on 7 y Red Hat Openshift Application Runtimes son vulnerables • https://bugzilla.redhat.com/show_bug.cgi?id=1831662 https://issues.redhat.com/browse/KEYCLOAK-13653 • CWE-352: Cross-Site Request Forgery (CSRF) •
CVSS: 4.0EPSS: 0%CPEs: 4EXPL: 0CVE-2020-1717
https://notcve.org/view.php?id=CVE-2020-1717
A flaw was found in Keycloak 7.0.1. A logged in user can do an account email enumeration attack. Se encontró un fallo en Keycloak versión 7.0.1. Un usuario que haya iniciado sesión puede llevar a cabo un ataque de enumeración de correo electrónico de la cuenta • https://bugzilla.redhat.com/show_bug.cgi?id=1796281 https://issues.jboss.org/browse/KEYCLOAK-12014 • CWE-209: Generation of Error Message Containing Sensitive Information •
CVSS: 8.8EPSS: 0%CPEs: 7EXPL: 0CVE-2020-1714 – keycloak: Lack of checks in ObjectInputStream leading to Remote Code Execution
https://notcve.org/view.php?id=CVE-2020-1714
A flaw was found in Keycloak before version 11.0.0, where the code base contains usages of ObjectInputStream without type checks. This flaw allows an attacker to inject arbitrarily serialized Java Objects, which would then get deserialized in a privileged context and potentially lead to remote code execution. Se detectó un fallo en Keycloak versiones anteriores a 11.0.0, donde la base de código contiene usos de la función ObjectInputStream sin ningún tipo de comprobaciones. Este fallo permite a un atacante inyectar Objetos Java serializados arbitrariamente, que luego se deserializarán en un contexto privilegiado y conlleva potencialmente a una ejecución de código remota. A flaw was found in Keycloak, where the code base contains usages of ObjectInputStream without type checks. • https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-1714 https://github.com/keycloak/keycloak/pull/7053 https://access.redhat.com/security/cve/CVE-2020-1714 https://bugzilla.redhat.com/show_bug.cgi?id=1705975 • CWE-20: Improper Input Validation •