[SECURITY] [DSA 3773-1] openssl security update

------------------------------------------------------------------------- Debian Security Advisory DSA-3773-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff January 27, 2017 https://www.debian.org/security/faq -...

Weak Diffie-Hellman Handshake Due To Truncated Secret Length

libssh2 is vulnerable to weak handshakes. The vulnerability happens because diffiehellmansha256 function in kex.c in libssh2 generates secret key of length 128 or 256 bits instead of 1023 or 2047 bits, allowing the attackers to intercept or decrypt SSH sessions using bits/bytes confusion bug...

Debian Security Advisory DSA 3773-1 (openssl - security update)

Several vulnerabilities were discovered in OpenSSL: CVE-2016-7056 A local timing attack was discovered against ECDSA P-256. CVE-2016-8610 It was discovered that no limit was imposed on alert packets during an SSL handshake. CVE-2017-3731 Robert Swiecki discovered that the RC4-MD5 cipher when...

Denial Of Service (DoS)

OpenSSL is vulnerable to denial of service attacks. The attacks are due to a flaw in the way OpenSSL does the SSLv2 handshake messages. Therefore, when it has SSLv2 and EXPORT-grade cipher suites enabled, attackers can send malicious SSLv2 CLIENT-MASTER-Key messages to cause server failures...

Weapon of Mass Destruction: WMD

Weapon of Mass Destruction This is a python tool with a collection of IT security software. The software is incapsulated in “modules”. The modules does consist of pure python code and/or external third programs. Main functions 1 To use a module, run the command “use modulecall”, e.g. “use apsniff...

LocalTapiola: OpenSSL Padding Oracle Attack (CVE-2016-2107) on viestinta.lahitapiola.fi

Hello Lahitapiola Security Team, I would like to make two reports: 1. Subdomain viestinta.lahitapiola.fi is vulnerable to CVE-2016-2107 . 2. All the Lahitapiola domains/subdomains in scope of bug bounty have weak cipher suites and are susceptible to various SSL related attacks. Subdomain...

Fluxion 0.23 - WPA/WPA2 Security Hacked Without Brute Force

Fluxion is a remake of linset by vk496 with hopefully less bugs and more functionality. It's compatible with the latest release of Kali rolling. Latest builds stable and beta can be found here here . If you're new, or just don't understand much about the project, have a look at the wiki . The...

Hijacker - Aircrack, Airodump, Aireplay, MDK3 and Reaver GUI Application for Android

Hijacker is a Graphical User Interface for the wireless auditing tools airodump-ng, aireplay-ng and mdk3. It offers a simple and easy UI to use these tools without typing commands in a console and copy&pasting MAC addresses. This application requires an android device with a wireless adapter that...

Java Debug Wire Protocol (JDWP) - Remote Code Execution

Java Debug Wire Protocol JDWP - Remote Code Execution !/usr/bin/python Universal JDWP shellifier @hugsy And special cheers to @lanjelot import socket import time import sys import struct import urllib import argparse JDWP protocol variables HANDSHAKE = "JDWP-Handshake" REQUESTPACKETTYPE = 0x00...

CVE-2016-8610: to cause a denial of service“SSL-Death Alert”vulnerability patch analysis-vulnerability warning-the black bar safety net

Recently, one for OpenSSL Red AlertSSL Death Alertvulnerability security patch caught our attention. Other serious security vulnerabilities, this vulnerability also caught our attention, because according to the vulnerability discoverer said, there is this vulnerability of OpenSSL Web servermay b...

Apple macOS Denial of Service Vulnerability

Apple macOS is a specialized operating system developed by Apple for Mac computers. A denial of service vulnerability exists in Apple macOS version 10.12.2, which is caused by a man-in-the-middle attack on the Safari SSL "handshake" process that results in memory exhaustion, and can be exploited ...

OpenSSL: Invalid free in DTLS

An invalid-free flaw was found in the way OpenSSL handled certain DTLS handshake messages. A malicious DTLS client or server could send a specially crafted message to the peer, which could cause the application to crash or potentially result in arbitrary code execution...

CVE-2016-9574

nss before version 3.30 is vulnerable to a remote denial of service during the session handshake when using SessionTicket extension and ECDHE-ECDSA...

Updated libssh2 packages fix security vulnerability

Andreas Schneider reported that libssh2 passes the number of bytes to a function that expects number of bits during the SSHv2 handshake when libssh2 is to get a suitable value for 'group order' in the Diffie-Hellman negotiation. This weakens significantly the handshake security, potentially...

MGASA-2016-0392 Updated libssh2 packages fix security vulnerability

Andreas Schneider reported that libssh2 passes the number of bytes to a function that expects number of bits during the SSHv2 handshake when libssh2 is to get a suitable value for 'group order' in the Diffie-Hellman negotiation. This weakens significantly the handshake security, potentially...

FreeBSD-SA-16:33.openssh

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-SA-16:33.openssh Security Advisory The FreeBSD Project Topic: OpenSSH Remote Denial of Service vulnerability Category: contrib Module: OpenSSH Announced: 2016-11-0...

IBM WebSphere Application Server 7.0 < 7.0.0.33 Multiple Vulnerabilities

Binary data 9699.prm...

Remote Anonymous Denial of Service Vulnerability in OpenSSL (SSL Death Alert)

OpenSSL is an open source implementation of SSL used to implement strong encryption for network communications. OpenSSL is vulnerable to a remote anonymous denial of service vulnerability in that OpenSSL's implementation of the SSL/TLS protocol handshake allows a client to repeatedly send packets...

Apple macOS 10.12.1 / iOS 10 SecureTransport SSL Handshake MitM / DoS

Apple macOS 10.12.1/iOS 10 SecureTransport SSL handshake OCSP MiTM and DoS Credit: Maksymilian Arciemowicz https://cxsecurity.com/ URL: https://cxsecurity.com/issue/WLB-2016100213 --- 0. Description ---- The latest macOS and iOS have weak OCSP validation process which allow attacker to send OCSP...

UBUNTU-CVE-2016-8610

A denial of service flaw was found in OpenSSL 0.9.8, 1.0.1, 1.0.2 through 1.0.2h, and 1.1.0 in the way the TLS/SSL protocol defined processing of ALERT packets during a connection handshake. A remote attacker could use this flaw to make a TLS/SSL server consume an excessive amount of CPU and fail...