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: 2EXPL: 0CVE-2023-36013 – PowerShell Information Disclosure Vulnerability
https://notcve.org/view.php?id=CVE-2023-36013
PowerShell Information Disclosure Vulnerability Vulnerabilidad de divulgación de información de PowerShell • https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36013 • CWE-668: Exposure of Resource to Wrong Sphere CWE-798: Use of Hard-coded Credentials •
CVSS: 7.5EPSS: 0%CPEs: 4EXPL: 0CVE-2023-21538 – .NET Denial of Service Vulnerability
https://notcve.org/view.php?id=CVE-2023-21538
.NET Denial of Service Vulnerability Vulnerabilidad de denegación de servicio de .NET A vulnerability was found in dotnet. This flaw occurs when parsing an empty HTTP response as a JSON.NET JObject that causes a stack overflow and crashes a process. • https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21538 https://access.redhat.com/security/cve/CVE-2023-21538 https://bugzilla.redhat.com/show_bug.cgi?id=2158342 • CWE-121: Stack-based Buffer Overflow CWE-502: Deserialization of Untrusted Data •
CVSS: 8.5EPSS: 1%CPEs: 22EXPL: 0CVE-2022-41076 – PowerShell Remote Code Execution Vulnerability
https://notcve.org/view.php?id=CVE-2022-41076
PowerShell Remote Code Execution Vulnerability Vulnerabilidad de ejecución remota de código de PowerShell. • https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-41076 •
CVSS: 8.8EPSS: 0%CPEs: 23EXPL: 0CVE-2022-41121 – Windows Graphics Component Elevation of Privilege Vulnerability
https://notcve.org/view.php?id=CVE-2022-41121
Windows Graphics Component Elevation of Privilege Vulnerability Vulnerabilidad de elevación de privilegios de Windows Graphics Component. This vulnerability allows local attackers to escalate privileges on affected installations of Microsoft Windows. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the implementation of the StretchBlt graphics primitive. The issue results from the lack of proper validation of a user-supplied value prior to dereferencing it as a pointer. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of SYSTEM. • https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-41121 •