FreeBSD : putty -- add protocol extension against 'Terrapin attack' (91955195-9ebb-11ee-bc14-a703705db3a6)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the 91955195-9ebb-11ee-bc14-a703705db3a6 advisory. - The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other...

Prefix Truncation Attack (Terrapin Attack)

libssh 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 to delete any number 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...

Slackware Linux 14.2 / 15.0 / current libssh Multiple Vulnerabilities (SSA:2023-353-01)

The version of libssh installed on the remote host is prior to 0.10.6. It is, therefore, affected by multiple vulnerabilities as referenced in the SSA:2023-353-01 advisory. - The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows remote...

FreeBSD -- Prefix Truncation Attack in the SSH protocol

Problem Description: The SSH protocol executes an initial handshake between the server and the client. This protocol handshake includes the possibility of several extensions allowing different options to be selected. Validation of the packets in the handshake is done through sequence numbers...

Authentication Bypass by Capture-replay

Overview Affected versions of this package are vulnerable to Authentication Bypass by Capture-replay during the establishment of the secure channel. An attacker can manipulate handshake sequence numbers to delete messages sent immediately after the channel is established. Note: 1 Sequence numbers...

DEBIAN-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...

CVE-2023-48795

CVE-2023-48795 is referenced across several connected advisories, detailing affected packages and required upgrades. Astra Linux/CBL-Mariner entries note: podman (<5.6.1-2) needs upgrade, erlang (<25.2-1), libssh2 (<1.11.1-1), libssh (<0.10.6-1), terraform (<1.3.2-25), kubevirt (&l...

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...

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...

CVE-2023-6534

In versions of FreeBSD 14.0-RELEASE before 14-RELEASE-p2, FreeBSD 13.2-RELEASE before 13.2-RELEASE-p7 and FreeBSD 12.4-RELEASE before 12.4-RELEASE-p9, the pf4 packet filter incorrectly validates TCP sequence numbers. This could allow a malicious actor to execute a denial-of-service attack against...

The vulnerability of the Dovecot mail server arises from improper elimination of sequence numbers of control and meta-characters, allowing attackers to gain access to confidential data and compromise its integrity.

The vulnerability of the Dovecot mail server is related to improper elimination of sequence control and meta-characters. Exploiting this vulnerability allows a remote attacker to gain access to confidential data and compromise its integrity...

CVE-2020-27634

In Contiki 4.5, TCP ISNs are improperly random...

CVE-2020-27213

An issue was discovered in Ethernut Nut/OS 5.1. The code that generates Initial Sequence Numbers ISNs for TCP connections derives the ISN from an insufficiently random source. As a result, an attacker may be able to determine the ISN of current and future TCP connections and either hijack existin...

CVE-2020-27213

An issue was discovered in Ethernut Nut/OS 5.1. The code that generates Initial Sequence Numbers ISNs for TCP connections derives the ISN from an insufficiently random source. As a result, an attacker may be able to determine the ISN of current and future TCP connections and either hijack existin...

CVE-2020-27636

In Microchip MPLAB Net 3.6.1, TCP ISNs are improperly random...

PT-2023-8395

Name of the Vulnerable Software and Affected Versions EDK2 affected versions not specified Description The EDK2's Network Package is susceptible to a predictable TCP Initial Sequence Number, which can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of...

CVE-2022-43636

This vulnerability allows network-adjacent attackers to bypass authentication on affected installations of TP-Link TL-WR940N 6211111 3.20.1US routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the httpd service, which listens on TCP port 80 by...

K16883: TCP sequence number vulnerability CVE-1999-0077

Security Advisory Description Predictable TCP sequence numbers allow spoofing. CVE-1999-0077 Impact There is no impact; F5 products are not affected by this vulnerability. Security Advisory Status To determine if your release is known to be vulnerable, the components or features that are affected...

K3126: Large TCP window sizes may make it easier to predict sequence numbers vulnerability CVE-2004-0230

Security Advisory Description Note : For information about signing up to receive security notice updates from F5, refer to K9970: Subscribing to email notifications regarding F5 products. Note : Versions that are not listed in this article have not been evaluated for vulnerability to this securit...