#ssh

Artificial intelligence (AI) workloads are revolutionizing the industry, impacting healthcare, finance services, national security and autonomous systems. As part of this revolution, organizations are increasingly moving their AI workloads to the cloud, taking advantage of its scalability, flexibility and cost-effectiveness. Of course this transition to the cloud brings new challenges around data privacy, intellectual property and regulation compliance. Existing virtual machines (VMs) provide isolation between workloads, but they cannot protect workloads from privileged users and software com

### Impact Versions of OpenPubkey library prior to 0.10.0 contained a vulnerability that would allow a specially crafted JWS to bypass signature verification. As OPKSSH depends on the OpenPubkey library for authentication, this vulnerability in OpenPubkey also applies to OPKSSH versions prior to 0.5.0 and would allow an attacker to bypass OPKSSH authentication. ### Patches The vulnerability does not exist in more recent versions of OPKSSH. his only impacts OPKSSH when used to verify ssh keys on a server, the OPKSSH client is unaffected. To remediate upgrade to a version of OPKSSH v0.5.0 or greater. To determine if you are vulnerable run on your server: ```bash opkssh --version ``` If the version is less than 0.5.0 you should upgrade. To upgrade to the latest version run: ```bash wget -qO- "https://raw.githubusercontent.com/openpubkey/opkssh/main/scripts/install-linux.sh" | sudo bash ``` ### References [CVE-2025-4658](https://www.cve.org/CVERecord?id=CVE-2025-4658) The upst...

How do you profile actors and defend your systems when multiple threat actors are working together? In Part 2, Cisco Talos proposes an extended Diamond Model to analyze complex relationships between attackers.

About Remote Code Execution – Erlang/OTP (CVE-2025-32433) vulnerability. Erlang is a programming language used to build massively scalable soft real-time systems with requirements for high availability. Used in telecom, banking, e-commerce, telephony, and messaging. OTP is a set of Erlang libraries and design principles providing middle-ware to develop these systems. A message handling vulnerability in […]

View CSAF 1. EXECUTIVE SUMMARY CVSS v4 8.5 ATTENTION: Exploitable remotely/low attack complexity Vendor: BrightSign Equipment: Brightsign Players Vulnerabilities: Execution with Unnecessary Privileges 2. RISK EVALUATION Successful exploitation of this vulnerability could allow for privilege escalation on the device, easily guessed passwords, or for arbitrary code to be executed on the underlying operating system. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS Products using the following versions of BrightSign OS are affected: BrightSign OS series 4 players: Versions prior to v8.5.53.1 BrightSign OS series 5 players: Versions prior to v9.0.166 3.2 VULNERABILITY OVERVIEW 3.2.1 EXECUTION WITH UNNECESSARY PRIVILEGES CWE-250 BrightSign players running BrightSign OS series 4 prior to v8.5.53.1 or series 5 prior to v9.0.166 contain an execution with unnecessary privileges vulnerability, allowing for privilege escalation on the device once code execution has been obtained. CVE-2025-3925 has been ...

View CSAF 1. EXECUTIVE SUMMARY CVSS v4 9.3 ATTENTION: Exploitable remotely/low attack complexity Vendor: Optigo Networks Equipment: ONS NC600 Vulnerability: Use of Hard-coded Credentials 2. RISK EVALUATION Successful exploitation of this vulnerability could allow an attacker to establish an authenticated connection with the hard-coded credentials and perform OS command executions. 3. TECHNICAL DETAILS 3.1 AFFECTED PRODUCTS The following versions of Optigo Networks ONS NC600 are affected: ONS NC600: Versions 4.2.1-084 through 4.7.2-330 3.2 VULNERABILITY OVERVIEW 3.2.1 USE OF HARD-CODED CREDENTIALS CWE-798 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 has been assigned to this vulnerability. A CVSS v3.1 base score of 9.8 has been calculated; the CVSS vector string is (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H). A CVSS v4 score has also ...

### Impact A vulnerability has been identified within Fleet where, by default, Fleet will automatically trust a remote server’s certificate when connecting through SSH if the certificate isn’t set in the `known_hosts` file. This could allow the execution of a man-in-the-middle (MitM) attack against Fleet. In case the server that is being connected to has a trusted entry in the known_hosts file, then Fleet will correctly check the authenticity of the presented certificate. Please consult the associated [MITRE ATT&CK - Technique - Adversary-in-the-Middle](https://attack.mitre.org/techniques/T1557/) for further information about this category of attack. ### Patches Patched versions include releases `v0.10.12`, `v0.11.7` and `v0.12.2`. The fix involves some key areas with the following changes: - Git latest commit fetcher sources `known_hosts` entries from the following locations, in decreasing order of priority: 1. Secret referenced in a `GitRepo`’s `clientSecretName` field; 2. ...

In this edition, Bill explores how intellectual curiosity drives success in cybersecurity, shares insights on the IAB ToyMaker’s tactics, and covers the top security headlines you need to know.

Cisco Talos discovered a sophisticated attack on critical infrastructure by ToyMaker and Cactus, using the LAGTOY backdoor to orchestrate a relentless double extortion scheme.

Government-backed hacking groups from North Korea (TA427), Iran (TA450), and Russia (UNK_RemoteRogue, TA422) are now using the ClickFix…