Configure Proper MACs Algorithms for the SSH Service

In cryptography, a message authentication code MAC is an authentication mechanism used by communication entities to check message integrity. If the configured algorithms are insecure, security risks increase because weak algorithms have been or are about to be cracked in the industry. The...

Do Not Configure the Encryption Algorithm Overwriting Policy for the SSH Service

The configuration files of the SSH encryption algorithms are /etc/ssh/sshdconfig and /etc/sysconfig/sshd. When the SSH service is running, you can edit the /etc/sysconfig/sshd file to overwrite the encryption algorithm policy. If the encryption algorithm overwriting policy is configured, users ar...

Configure a Proper SSH Service Authentication Mode

A proper authentication mode helps ensure user and system data security. Typically, the user/password authentication mode is suitable for human-machine users. In non-interactive login scenarios, the public and private keys are suitable for authentication. In high-risk scenarios, only the public a...

Configure a Proper Number of Concurrent Sessions Allowed for a Single SSH Connection

SSH allows a client that supports multiplexing to establish multiple sessions based on a network connection. MaxSessions limits the number of concurrent SSH sessions that can be established for each network connection. This prevents system resources from being occupied by a single connection or a...

CVE-2025-47203

CVE-2025-47203 affects the Dropbear SSH package’s dbclient before version 2025.88. The vulnerability arises because a shell is used when processing the hostname argument, allowing an attacker to craft an untrusted hostname that can trigger command execution. Impact is described as arbitrary comma...

PT-2025-20286

Name of the Vulnerable Software and Affected Versions: Dropbear SSH versions prior to 2025.88 Description: The issue allows command injection via an untrusted hostname argument, because a shell is used. This occurs when the dbclient in Dropbear SSH is used with an untrusted hostname...

CVE-2025-4041

In Optigo Networks ONS NC600 versions 4.2.1-084 through 4.7.2-330, an attacker could connect with the device's ssh server and utilize the system's components to perform OS command executions...

CVE-2025-4041 Use of Hard-coded Credentials Optigo Networks ONS NC600

In Optigo Networks ONS NC600 versions 4.2.1-084 through 4.7.2-330, an attacker could connect with the device's ssh server and utilize the system's components to perform OS command executions...

CVE-2025-4041

Optigo Networks ONS NC600, versions 4.2.1-084 through 4.7.2-330, are affected by CVE-2025-4041. An attacker who can access the device’s SSH service could leverage system components to execute OS commands on the device. The impact is consistent with a remote command execution risk affecting availa...

CVE-2025-4041 Use of Hard-coded Credentials Optigo Networks ONS NC600

In Optigo Networks ONS NC600 versions 4.2.1-084 through 4.7.2-330, an attacker could connect with the device's ssh server and utilize the system's components to perform OS command executions...

PT-2025-19913 · Optigo Networks · Optigo Networks Ons Nc600

Name of the Vulnerable Software and Affected Versions: Optigo Networks ONS NC600 versions 4.2.1-084 through 4.7.2-330 Description: An issue exists where an attacker could connect to the device's ssh server and utilize the system's components to perform OS command executions. Recommendations: For...

ROS-20250505-01

The vulnerability in the Golang programming language SSH server is related to the fact that the application does not control internal resources consumption in the ssh packet when working with clients that are slow or do not perform key exchange at all. or do not perform key exchange at all...

GO-2025-3649 Fleet doesn’t validate a server’s certificate when connecting through SSH in github.com/rancher/fleet

Fleet doesn’t validate a server’s certificate when connecting through SSH in github.com/rancher/fleet...

Erlang OTP Pre-Auth RCE Scanner and Exploit

This module detect and exploits CVE-2025-32433, a pre-authentication vulnerability in Erlang-based SSH servers that allows remote command execution. By sending crafted SSH packets, it executes a payload to establish a reverse shell on the target system. The exploit leverages a flaw in the SSH...

Exploit for Missing Authentication for Critical Function in Erlang Erlang\/Otp

✅ Result The server responded to an SSH message ID 80 0x5...

📄 Erlang-Based SSH OTP Pre-Authentication Remote Code Execution

This Metasploit module detect and exploits CVE-2025-32433, a pre-authentication vulnerability in Erlang-based SSH servers that allows remote command execution. By sending crafted SSH packets, it executes a payload to establish a reverse shell on the target system. The exploit leverages a flaw in...

Man-In-The-Middle (MITM)

github.com/rancher/flee is vulnerable to Man-in-the-Middle MitM attack. The vulnerability is due to improper certificate validation and Fleet automatically trusting remote server SSH certificates if not listed in the knownhosts file, allowing potential spoofing by an attacker...

ROS-20250430-05

Vulnerability of Erlang programming language OTP library set is related to improper packet handling SFTP. Exploitation of the vulnerability could allow an attacker acting remotely to cause a denial of service. denial of service Vulnerability of SSH protocol implementation from Erlang/OTP library...

Exploit for Missing Authentication for Critical Function in Erlang Erlang\/Otp

CVE-2025-32433Erlang-OTP This script is a custom security too...

Exploit for Missing Authentication for Critical Function in Erlang Erlang\/Otp

CVE-2025-32433Erlang-OTP This script is a custom security too...