#ssh

An ongoing campaign targeting FortiGate devices with management interfaces exposed on the public Internet is leading to unauthorized administrative logins and configuration changes, creating new accounts, and performing SSL VPN authentication.

View CSAF 1. EXECUTIVE SUMMARY CVSS v3 10.0 ATTENTION: Exploitable remotely/low attack complexity Vendor: Hitachi Energy Equipment: FOXMAN-UN Vulnerabilities: Authentication Bypass Using an Alternate Path or Channel, Improper Neutralization of Argument Delimiters in a Command ('Argument Injection'), Heap-based Buffer Overflow, Incorrect User Management, Improper Certificate Validation, Improper Restriction of Excessive Authentication Attempts, Use of Hard-coded Password, Cleartext Storage of Sensitive Information 2. RISK EVALUATION Successful exploitation of these vulnerabilities could allow an unauthenticated malicious user to interact with the services and the post-authentication attack surface. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS Hitachi Energy reports that the following products are affected: Hitachi Energy FOXMAN-UN: All versions prior to R15A Hitachi Energy FOXMAN-UN: R15B (CVE-2024-28020, CVE-2024-28022, CVE-2024-28024) Hitachi Energy FOXMAN-UN: R15B PC4 (CVE-2024-2013, C...

New year, same story. Despite Ivanti's commitment to secure-by-design principles, threat actors — possibly the same ones as before — are exploiting its edge devices for the nth time.

In my experience as a sysadmin, I have often found network connectivity issues challenging to troubleshoot. For those situations, tcpdump is a great ally.Take the course: Getting started with Linux fundamentalsTcpdump is a command-line utility that allows you to capture and analyze network traffic going through your system. It is often used to help troubleshoot network issues, as well as a security tool.A powerful and versatile tool that includes many options and filters, tcpdump can be used in a variety of cases. Because it's a command-line tool, it is ideal to run in remote servers or device

Critical security vulnerabilities have been found in Moxa cellular routers and network security appliances. Learn about CVE-2024-9138 &…

The southern African telco is the latest entity on the continent to have its critical infrastructure hacked, and attackers release sensitive info online when Telecom Namibia refuses to negotiate.

The `ObjectSerializationDecoder` in Apache MINA uses Java’s native deserialization protocol to process incoming serialized data but lacks the necessary security checks and defenses. This vulnerability allows attackers to exploit the deserialization process by sending specially crafted malicious serialized data, potentially leading to remote code execution (RCE) attacks. This issue affects MINA core versions 2.0.X, 2.1.X and 2.2.X, and will be fixed by the releases 2.0.27, 2.1.10 and 2.2.4. It's also important to note that an application using MINA core library will only be affected if the IoBuffer#getObject() method is called, and this specific method is potentially called when adding a ProtocolCodecFilter instance using the `ObjectSerializationCodecFactory` class in the filter chain. If your application is specifically using those classes, you have to upgrade to the latest version of MINA core library. Upgrading will  not be enough: you also need to explicitly allow the classes th...

### Impact When the built-in SSH server is enabled (`[server] START_SSH_SERVER = true`), unprivileged user accounts with at least one SSH key can execute arbitrary commands on the Gogs instance with the privileges of the user specified by `RUN_USER` in the configuration. It allows attackers to access and alter any users' code hosted on the same instance. ### Patches The `env` command sent to the internal SSH server has been changed to be a passthrough (https://github.com/gogs/gogs/pull/7868), i.e. the feature is effectively removed. Users should upgrade to 0.13.1 or the latest 0.14.0+dev. ### Workarounds [Disable the use of built-in SSH server](https://github.com/gogs/gogs/blob/7adac94f1e93cc5c3545ea31688662dcef9cd737/conf/app.ini#L76-L77) on operating systems other than Windows. ### References https://www.cve.org/CVERecord?id=CVE-2024-39930

### Impact Unprivileged user accounts with at least one SSH key can read arbitrary files on the system. For instance, they could leak the configuration files that could contain database credentials (`[database] *`) and `[security] SECRET_KEY`. Attackers could also exfiltrate TLS certificates, other users' repositories, and the Gogs database when the SQLite driver is enabled. ### Patches Unintended Git options has been ignored for creating tags (https://github.com/gogs/gogs/pull/7872). Users should upgrade to 0.13.1 or the latest 0.14.0+dev. ### Workarounds No viable workaround available, please only grant access to trusted users to your Gogs instance on affected versions. ### References https://www.cve.org/CVERecord?id=CVE-2024-39933

### Impact The malicious user is able to write a file to an arbitrary path on the server to gain SSH access to the server. ### Patches Writing files outside repository Git directory has been prohibited via the repository file update API (https://github.com/gogs/gogs/pull/7859). Users should upgrade to 0.13.1 or the latest 0.14.0+dev. ### Workarounds No viable workaround available, please only grant access to trusted users to your Gogs instance on affected versions. ### References n/a ### Proof of Concept 1. Generate a Personal Access Tokens 2. Edit any file on the server with this ```bash curl -v --path-as-is -X PUT --url "http://localhost:10880/api/v1/repos/Test/bbcc/contents/../../../../../../../../home/git/.ssh/authorized_keys" \ -H "Authorization: token eaac23cf58fc76bbaecd686ec52cd44d903db9bf" \ -H "Content-Type: application/json" \ --data '{ "message": "an", "content": "<base64encoded: your ssh pub key>" }' ``` 3. ssh connect to...