USN-6598-1 paramiko vulnerability

Fabian Bäumer, Marcus Brinkmann, Jörg Schwenk discovered that the SSH protocol was vulnerable to a prefix truncation attack. If a remote attacker was able to intercept SSH communications, extension negotiation messages could be truncated, possibly leading to certain algorithms and features being...

USN-6585-1 libssh2 vulnerability

Fabian Bäumer, Marcus Brinkmann, Jörg Schwenk discovered that the SSH protocol was vulnerable to a prefix truncation attack. If a remote attacker was able to intercept SSH communications, extension negotiation messages could be truncated, possibly leading to certain algorithms and features being...

New Terrapin Flaw Could Let Attackers Downgrade SSH Protocol Security

Security researchers from Ruhr University Bochum have discovered a vulnerability in the Secure Shell SSH cryptographic network protocol that could allow an attacker to downgrade the connection's security by breaking the integrity of the secure channel. Called Terrapin CVE-2023-48795, CVSS score:...

The top 4 ransomware gang failures of 2023

Ransomware gangs care about one thing: Stealing money. Over time, their craven, cybercriminal efforts have toppled businesses, destabilized hospitals, and ruined lives. Worst of all, they show no sign of slowing down, and their extortion attempts—which no longer focus on ransomware delivery...

Ubuntu: Security Advisory (USN-6560-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2023 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

USN-6561-1 libssh vulnerability

Fabian Bäumer, Marcus Brinkmann, Jörg Schwenk discovered that the SSH protocol was vulnerable to a prefix truncation attack. If a remote attacker was able to intercept SSH communications, extension negotiation messages could be truncated, possibly leading to certain algorithms and features being...

USN-6561-1: libssh vulnerability

Fabian Bäumer, Marcus Brinkmann, Jörg Schwenk discovered that the SSH protocol was vulnerable to a prefix truncation attack. If a remote attacker was able to intercept SSH communications, extension negotiation messages could be truncated, possibly leading to certain algorithms and features being...

USN-6560-1: OpenSSH vulnerabilities

Fabian Bäumer, Marcus Brinkmann, Jörg Schwenk discovered that the SSH protocol was vulnerable to a prefix truncation attack. If a remote attacker was able to intercept SSH communications, extension negotiation messages could be truncated, possibly leading to certain algorithms and features being...

Rogue Session Attack (Terrapin)

ssh is vulnerable to Terrapin attack. The vulnerability is due to mishandling of the handshake phase and sequence numbers in the SSH Binary Packet Protocol BPP with certain OpenSSH extensions. This allows an attacker to bypass integrity checks and omit packets during extension negotiation, and...

The vulnerability of the SSH protocol lies in its ability to adjust packet sequence numbers during connection negotiation and delete arbitrary amounts of SSH protocol messages. This allows attackers to bypass integrity checks, disable existing security functions, and gain unauthorized access to protected information.

The vulnerability of the SSH protocol lies in the ability to alter the sequence numbers of packets during the connection negotiation process, thereby eliminating any number of SSH protocol messages. Exploiting this vulnerability allows a malicious actor to bypass integrity checks, disable existin...

GHSA-45X7-PX36-X8W8 Prefix Truncation Attack against ChaCha20-Poly1305 and Encrypt-then-MAC aka Terrapin

Summary Terrapin is a prefix truncation attack targeting the SSH protocol. More precisely, Terrapin breaks the integrity of SSH's secure channel. By carefully adjusting the sequence numbers during the handshake, an attacker can remove an arbitrary amount of messages sent by the client or server a...

AZL-36983 CVE-2023-48795 affecting package python-paramiko 2.12.0-2

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 connecti...

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 connecti...

ALPHV ransomware gang returns, sorta

The ALPHV ransomware gang, arguably the second most dangerous "big game" ransomware operator, appears to be back in business after its infrastructure went down for five days. But all does not appear to be going well for group. ALPHVs dark web leak site may be back but it is only showing a single...

HTTP NTLM Information Disclosure

Windows New Technology LAN Manager NTLM is a suite of Microsoft security protocols designed to offer authentication, integrity and confidentiality to users. In Windows environments, NTLM authentication is often supported over HTTP in order to protect access to specific resources. During the...

keystonenegotiation.com Improper Access Control vulnerability OBB-3802628

Following the coordinated and responsible vulnerability disclosure guidelines of the ISO 29147 standard, Open Bug Bounty has: a. verified the vulnerability and confirmed its existence; b. notified the website operator about its existence. Technical details of the vulnerability are currently hidde...

CVE-2023-46445

A flaw was found in python-asyncssh before 2.14.1 versions, where the rogue extension negotiation process is unauthenticated and allows injecting an info message. This flaw allows an attacker to replace the original message, downgrading the algorithm used for client authentication, which affects...

In-Depth Analysis of NoEscape Ransomware

Threat Level Attack Report For a detailed threat advisory, download the pdf file here Summary The NoEscape ransomware, suspected to be a rebrand of Avaddon, targets enterprises globally through multi-extortion attacks. Operating as Ransomware-as-a-Service, it encrypts files, changes wallpapers, a...

Rockwell Automation Stratix 5900 Exposure of Sensitive Information to an Unauthorized Actor (CVE-2016-6415)

A vulnerability in Internet Key Exchange version 1 IKEv1 packet processing code in Cisco IOS, Cisco IOS XE, and Cisco IOS XR Software could allow an unauthenticated, remote attacker to retrieve memory contents, which could lead to the disclosure of confidential information. The vulnerability is d...

kernel: Linux kernel: Denial of Service via malicious MTU negotiation in TIPC

A flaw was found in the Linux kernel's Transparent Inter-Process Communication TIPC protocol. A malicious peer can exploit this by sending a specially crafted Activate message with a very small Maximum Transmission Unit MTU value during link MTU negotiation. This can lead to an integer overflow,...