[ASA-201609-23] openssl: multiple issues

Arch Linux Security Advisory ASA-201609-23 ========================================== Severity: High Date : 2016-09-26 CVE-ID : CVE-2016-6304 CVE-2016-2178 CVE-2016-2177 CVE-2016-2183 CVE-2016-2182 CVE-2016-6303 CVE-2016-2179 CVE-2016-2180 CVE-2016-2181 CVE-2016-6302 CVE-2016-6306 Package : opens...

Internet Bug Bounty: Divide-and-conquer session key recovery in SSLv2 (CVE-2016-0703)

This is a retroactive submission of CVE-2016-0703, a.k.a. the "Extra Clear" bug, which can lead to the Special DROWN variant of the DROWN attack. After some discussion with the other DROWN authors, I'm submitting on behalf of myself David Adrian and J. Alex Halderman the vulnerability...

UBUNTU-CVE-2016-1550

An exploitable vulnerability exists in the message authentication functionality of libntp in ntp 4.2.8p4 and NTPSec a5fb34b9cc89b92a8fef2f459004865c93bb7f92. An attacker can send a series of crafted messages to attempt to recover the message digest key...

PT-2016-4857 · Ntp +8 · Ntp +10

Name of the Vulnerable Software and Affected Versions: ntp versions 4.2.8p4 NTPSec version a5fb34b9cc89b92a8fef2f459004865c93bb7f92 Description: An issue exists in the message authentication functionality of libntp, allowing an attacker to send crafted messages in an attempt to recover the messag...

WiFi Key Recovery (needs root) - Possible privilege escalation, Runtime command execution, Runtime privilege escalation vulnerabilities

HackApp vulnerability scanner discovered that application WiFi Key Recovery needs root published at the 'play' market has multiple vulnerabilities...

OpenSSL Modulo Power Arithmetic Bypass Attack Vulnerability

OpenSSL is an open source capable of implementing the Secure Sockets Layer SSL v2/v3 and Secure Transport Layer TLS v1 protocols developed by the OpenSSL team as a general-purpose cryptographic library that supports a wide range of cryptographic algorithms including symmetric ciphers, hash...

openssl: Divide-and-conquer session key recovery in SSLv2

It was discovered that the SSLv2 servers using OpenSSL accepted SSLv2 connection handshakes that indicated non-zero clear key length for non-export cipher suites. An attacker could use this flaw to decrypt recorded SSLv2 sessions with the server by using it as a decryption oracle...

openssl: Divide-and-conquer session key recovery in SSLv2

It was discovered that the SSLv2 servers using OpenSSL accepted SSLv2 connection handshakes that indicated non-zero clear key length for non-export cipher suites. An attacker could use this flaw to decrypt recorded SSLv2 sessions with the server by using it as a decryption oracle...

UBUNTU-CVE-2016-0702

The MODEXPCTIMECOPYFROMPREBUF function in crypto/bn/bnexp.c in OpenSSL 1.0.1 before 1.0.1s and 1.0.2 before 1.0.2g does not properly consider cache-bank access times during modular exponentiation, which makes it easier for local users to discover RSA keys by running a crafted application on the...

PT-2016-1335 · Openssl +9 · Openssl +12

Name of the Vulnerable Software and Affected Versions: OpenSSL versions 1.0.1 through 1.0.1s OpenSSL versions 1.0.2 through 1.0.2g Description: The issue is related to the fmtstr function in crypto/bio/b print.c, which improperly calculates string lengths. This allows remote attackers to cause a...

Vulnerability in OpenSSL - Divide-and-conquer session key recovery in SSLv2

This issue only affected versions of OpenSSL prior to March 19th 2015 at which time the code was refactored to address vulnerability CVE-2015-0293. s2srvr.c did not enforce that clear-key-length is 0 for non-export ciphers. If clear-key bytes are present for these ciphers, they displace...

OpenSSL CVE-2 0 1 6-0 7 0 1 Private Key Recovery attack vulnerability analysis-vulnerability warning-the black bar safety net

by: au2o3t @3 6 0 Cloud Security Team 0x01 Foreword 2 0 1 6 1 2 8, OpenSSL official published number for the CVE-2 0 1 6-0 7 0 1 vulnerabilities. The vulnerability occurs in the OpenSSL 1.0.2 versionOpenSSL 1.0.2 f and later versions not affected, when using the DH algorithm to a different client...

OpenSSL Key Recovery Attack on DH small subgroups (CVE-2016-0701)

Usual Mandatory Disclaimer: IANAC I am not a cryptographer so I might likely end up writing a bunch of mistakes in this blog post... tl;dr The OpenSSL 1.0.2 releases suffer from a Key Recovery Attack on DH small subgroups. This issue got assigned CVE-2016-0701 with a severity of High and OpenSSL...

Internet Bug Bounty: OpenSSL Key Recovery Attack on DH small subgroups (CVE-2016-0701)

Full write up: http://intothesymmetry.blogspot.ch/2016/01/openssl-key-recovery-attack-on-dh-small.html DH small subgroups CVE-2016-0701 ================================== Severity: High Historically OpenSSL usually only ever generated DH parameters based on "safe" primes. More recently in version...

DEBIAN-CVE-2015-7744

wolfSSL formerly CyaSSL before 3.6.8 does not properly handle faults associated with the Chinese Remainder Theorem CRT process when allowing ephemeral key exchange without low memory optimizations on a server, which makes it easier for remote attackers to obtain private RSA keys by capturing TLS...

UBUNTU-CVE-2015-7940

The Bouncy Castle Java library before 1.51 does not validate a point is withing the elliptic curve, which makes it easier for remote attackers to obtain private keys via a series of crafted elliptic curve Diffie Hellman ECDH key exchanges, aka an "invalid curve attack."...

ESPCMS的最新版后台登入绕过

简要描述： 8.25 V6.4.15.08.25 捡漏 详细说明： 在加密算法那 ，一般情况下我们是不能再还原出key了。 他加了这么一段代码 function eccode$string, $operation = 'DECODE', $key = '@LFK24s224%@safS3s%1f%', $mcrype = true $result = null; if $operation == 'ENCODE' if extensionloaded'mcrypt' && $mcrype $result = $this-encryptCookie$string, $key; else...

crypto++: private key recovery

Evgeny Sidorov discovered that it is possible to recover the private key when using Rabin-Williams signatures due to a bad interaction with the blinding value used to mask private key operations. The bad interaction had to do with the random value not meeting certain Jacobi requirements, which...

wss4j: Apache WSS4J is vulnerable to Bleichenbacher's attack (incomplete fix for CVE-2011-2487)

It was found that a prior countermeasure in Apache WSS4J for Bleichenbacher's attack on XML Encryption CVE-2011-2487 threw an exception that permitted an attacker to determine the failure of the attempted attack, thereby leaving WSS4J vulnerable to the attack. The original flaw allowed a remote...

wss4j: Apache WSS4J is vulnerable to Bleichenbacher's attack (incomplete fix for CVE-2011-2487)

It was found that a prior countermeasure in Apache WSS4J for Bleichenbacher's attack on XML Encryption CVE-2011-2487 threw an exception that permitted an attacker to determine the failure of the attempted attack, thereby leaving WSS4J vulnerable to the attack. The original flaw allowed a remote...