MS KB2868725: Update for Disabling RC4

The remote host is missing KB2868725, an update for disabling the weak RC4 cipher suite. C Tenable Network Security, Inc. include"compat.inc"; if description scriptid70854; scriptversion"1.3"; scriptcvsdate"Date: 2018/11/15 20:50:28"; scriptxrefname:"MSKB", value:"2868725"; scriptnameenglish:"MS...

Microsoft Warns Customers Away From RC4, SHA-1

The RC4 and SHA-1 algorithms have taken a lot of hits in recent years, with new attacks popping up on a regular basis. Many security experts and cryptographers have been recommending that vendors begin phasing the two out, and Microsoft on Tuesday said that is now recommending to developers that...

Security Advisory 2868725: Recommendation to disable RC4

In light of recent research into practical attacks on biases in the RC4 stream cipher, Microsoft is recommending that customers enable TLS1.2 in their services and take steps to retire and deprecate RC4 as used in their TLS implementations. Microsoft recommends TLS1.2 with AES-GCM as a more secur...

WhatsApp Crypto Implementation Vulnerability Discovered

WhatsApp, a popular mobile message application, suffers from crypto implementation vulnerability that leaves messages exposed. Thijs Alkemade, a computer science student at Utrecht University in The Netherlands who works on the open source Adium instant messaging project, disclosed a serious issu...

BEAST Cryptographic Attack Mitigations Overturned

The BEAST cryptographic attack, once thought to be largely mitigated, has two things conspiring against it to make breaches potentially possible again. Not only has a server-side mitigation essentially been rendered moot by recent research into the RC4 cryptographic protocol, but Apple has yet to...

SOL14638 - TLS/SSL RC4 vulnerability CVE-2013-2566

The RC4 algorithm, as used in the TLS protocol and SSL protocol, has many single-byte biases, which makes it easier for remote attackers to conduct plaintext-recovery attacks via statistical analysis of ciphertext in a large number of sessions that use the same plaintext. CVE-2013-2566...

Oracle Linux 5 : krb5 (ELSA-2010-0029)

The remote Oracle Linux 5 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2010-0029 advisory. 1.6.1-36.el54.1 - add candidate patch to correct KDC integer overflows which could be triggered by malformed RC4 and AES ciphertexts CVE-2009-4212, 546347 Tenab...

Bifrost 1.2d - Remote Buffer Overflow

Bifrost 1.2d - Remote Buffer Overflow !/usr/bin/python2.7 By : Mohamed Clay import socket from time import sleep from itertools import izip, cycle import base64 import threading import sys def rc4cryptdata, key: x = 0 box = range256 for i in range256: x = x + boxi + ordkeyi % lenkey % 256 boxi,...

Bifrost 1.2.1 - Remote Buffer Overflow

Bifrost 1.2.1 - Remote Buffer Overflow !/usr/bin/python2.7 By : Mohamed Clay import socket from time import sleep from itertools import izip, cycle import base64 import sys def rc4cryptdata, key: x = 0 box = range256 for i in range256: x = x + boxi + ordkeyi % lenkey % 256 boxi, boxx = boxx, boxi...

Bifrost 1.2.1 - Remote Buffer Overflow

!/usr/bin/python2.7 By : Mohamed Clay import socket from time import sleep from itertools import izip, cycle import base64 import sys def rc4cryptdata, key: x = 0 box = range256 for i in range256: x = x + boxi + ordkeyi % lenkey % 256 boxi, boxx = boxx, boxi x = 0 y = 0 out = for char in data: x ...

Opera < 12.15 Multiple Vulnerabilities

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Opera < 12.15 Multiple Vulnerabilities

The version of Opera installed on the remote host is earlier than 12.15 and therefore is reportedly affected by the following vulnerabilities : - A weakness exists in the RC4 encryption protocol, allowing an attacker to derive the plaintext. 1046 - A weakness exists due to the application allowin...

Opera < 12.15 Multiple Vulnerabilities

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SSL RC4 Cipher Suites Supported (Bar Mitzvah)

The remote host supports the use of RC4 in one or more cipher suites. The RC4 cipher is flawed in its generation of a pseudo-random stream of bytes so that a wide variety of small biases are introduced into the stream, decreasing its randomness. If plaintext is repeatedly encrypted e.g., HTTP...

RC4 encryption protocol is vulnerable to certain brute force attacks

Weaknesses in the RC4 encryption protocol have been found, allowing an attacker to deduce the plaintext. If the same message is encrypted many millions of times, statistical methods can be used to extract valuable information, such as cookies. Due to the time this amount of requests takes, this i...

CVE-2013-2566

The RC4 algorithm, as used in the TLS protocol and SSL protocol, has many single-byte biases, which makes it easier for remote attackers to conduct plaintext-recovery attacks via statistical analysis of ciphertext in a large number of sessions that use the same plaintext...

Ramnit Malware Back and Better at Avoiding Detection

The Ramnit malware family has been given a facelift with new anti-detection capabilities, a troubleshooting module, as well as enhanced encryption and malicious payloads. Tim Liu of the Microsoft Malware Protection Center said Ramnet resurfaced late last year and its keepers had stripped out all ...

CVE-2013-2566

The RC4 algorithm, as used in the TLS protocol and SSL protocol, has many single-byte biases, which makes it easier for remote attackers to conduct plaintext-recovery attacks via statistical analysis of ciphertext in a large number of sessions that use the same plaintext...

CVE-2013-2566

CVE-2013-2566 involves RC4 biases in TLS/SSL allowing plaintext-recovery via large volumes of sessions with the same plaintext. Multiple connected sources confirm this issue affecting products such as F5 BIG-IP (various modules) and IBM Proventia/SiteProtector family. Affected in some BIG-IP rele...

Attack Exploits Weakness in RC4 Cipher to Decrypt User Sessions

It’s been more than 25 years since Ron Rivest invented his RC4 stream cipher, and after all that time it’s still being used widely, which is something of an achievement in the crypto world. However, for more than 15 years researchers have known about a weakness in RC4 that could enable an attacke...