We need to talk about Session Tickets

More specifically, TLS 1.2 Session Tickets. Session Tickets, specified in RFC 5077, are a technique to resume TLS sessions by storing key material encrypted on the clients. In TLS 1.2 they speed up the handshake from two to one round-trips. Unfortunately, a combination of deployment realities and...

Encrypted Exploit Delivery For The Masses: Ironsquirrel

This project aims at delivering browser exploits to the victim browser in an encrypted fashion. Ellyptic-curve Diffie-Hellman secp256k1 is used for key agreement and AES is used for encryption. By delivering the exploit code and shellcode to the victim in an encrypted way, the attack can not be...

Posh-SSH - PowerShell Module for automating tasks on remote systems using SSH

Windows Powershell module that leverages a custom version of the SSH.NET Library http://sshnet.codeplex.com/ to provide basic SSH functionality in Powershell. The main purpose of the module is to facilitate automating actions against one or multiple SSH enabled servers. This module is for Windows...

SSH Diffie-Hellman Key Exchange Detection

Binary data 700172.prm...

golang: Elliptic curves carry propagation issue in x86-64 P-256

A carry propagation flaw was found in the implementation of the P-256 elliptic curve in golang. An attacker could possibly use this flaw to extract private keys when static ECDH was used...

IBM Domino TLS Server Diffie-Hellman Key Validation Vulnerability

A vulnerability in the IBM Domino TLS server SPDX-FileCopyrightText: 2017 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 CPE = "cpe:/a:ibm:lotusdomino"; if description...

IBM Domino 8.5.x / 9.0.x < 9.0.1 Fix Pack 8 TLS Server Diffie-Hellman Key Validation MitM

According to its banner, the version of IBM Domino formerly IBM Lotus Domino running on the remote host is 8.5.x or 9.0.x prior to 9.0.1 Fix Pack 8. It is, therefore, affected by a flaw in the TLS server due to improper validation of Diffie-Hellman parameters. A man-in-the-middle MitM attacker ca...

DEBIAN-CVE-2017-8855

wolfSSL before 3.11.0 does not prevent wcDhAgree from accepting a malformed DH key...

DEBIAN-CVE-2017-8854

wolfSSL before 3.10.2 has an out-of-bounds memory access with loading crafted DH parameters, aka a buffer overflow triggered by a malformed temporary DH file...

UBUNTU-CVE-2017-8854

wolfSSL before 3.10.2 has an out-of-bounds memory access with loading crafted DH parameters, aka a buffer overflow triggered by a malformed temporary DH file...

UBUNTU-CVE-2017-8855

wolfSSL before 3.11.0 does not prevent wcDhAgree from accepting a malformed DH key...

DEBIAN-CVE-2016-7055

There is a carry propagating bug in the Broadwell-specific Montgomery multiplication procedure in OpenSSL 1.0.2 and 1.1.0 before 1.1.0c that handles input lengths divisible by, but longer than 256 bits. Analysis suggests that attacks against RSA, DSA and DH private keys are impossible. This is...

DEBIAN-CVE-2017-3730

In OpenSSL 1.1.0 before 1.1.0d, if a malicious server supplies bad parameters for a DHE or ECDHE key exchange then this can result in the client attempting to dereference a NULL pointer leading to a client crash. This could be exploited in a Denial of Service attack...

ALPINE-CVE-2017-3732

There is a carry propagating bug in the x8664 Montgomery squaring procedure in OpenSSL 1.0.2 before 1.0.2k and 1.1.0 before 1.1.0d. No EC algorithms are affected. Analysis suggests that attacks against RSA and DSA as a result of this defect would be very difficult to perform and are not believed...

DEBIAN-CVE-2017-3732

There is a carry propagating bug in the x8664 Montgomery squaring procedure in OpenSSL 1.0.2 before 1.0.2k and 1.1.0 before 1.1.0d. No EC algorithms are affected. Analysis suggests that attacks against RSA and DSA as a result of this defect would be very difficult to perform and are not believed...

HPESBHF03736 rev.1 - HPE Aruba and HPE ProVision network switches using Diffie Hellman Group1 Sha1 Exchange Algorithm, Remote Disclosure of Information

Potential Security Impact: Remote: Disclosure of Information SUPPORTED SOFTWARE VERSIONS: ONLY impacted versions are listed. HPE Provision Network Switches xx.16.01.0006, xx.15.18.0007, xx.15.16.0012m and previous versions HPE Aruba Network Switches xx.16.01.0006, xx.15.18.0007, xx.15.16.0012m an...

EulerOS 2.0 SP1 : libssh2 (EulerOS-SA-2016-1005)

According to the version of the libssh2 package installed, the EulerOS installation on the remote host is affected by the following vulnerability : - A type confusion issue was found in the way libssh2 generated ephemeral secrets for the diffie-hellman-group1 and diffie-hellman-group14 key exchan...

EulerOS 2.0 SP1 : nss, nss-util (EulerOS-SA-2016-1084)

According to the versions of the nss, nss-util packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : - Multiple buffer handling flaws were found in the way NSS handled cryptographic data from the network. A remote attacker could use these...

Invalid Curve Attack

github.com/square/go-jose is vulnerable to invalid curve attacks. These attacks are possible when using key agreement with Elliptic Curve Diffie-Hellman Ephemeral Static ECDH-ES, allowing attackers to recover the private secret key...

Invalid Curve Attack

github.com/dvsekhvalnov/jose2go is vulnerable to invalid curve attacks. These attacks are possible when using key agreement with Elliptic Curve Diffie-Hellman Ephemeral Static ECDH-ES, allowing attackers to recover the private secret key...