Vulnerability in OpenSSL - Malformed SHA512 ticket DoS

If a server uses SHA512 for TLS session ticket HMAC it is vulnerable to a DoS attack where a malformed ticket will result in an OOB read which will ultimately crash. The use of SHA512 in TLS session tickets is comparatively rare as it requires a custom server callback and ticket lookup mechanism...

Nagios Network Analyzer 2.2.0 - Multiple Vulnerabilities

Exploit for php platform in category web applications Nagios Network Analyzer Multiple Vulnerabilities Affected versions: Nagios Network Analyzer = 2.2.0 PDF: http://www.security-assessment.com/files/documents/advisory/NagiosNetworkAnalyzerAdvisory.pdf +-----------+ |Description| +-----------+ Th...

Nagios Network Analyzer 2.2.0 - Multiple Vulnerabilities

, , . '.' '. ', . , '. , .', , / / / \ \ ==/ /\ \ / / \ / \ / / | \ \ Y Y \ / /| / \ /||| / / /.-. / /:wq x.0 '=.|w|.=' =''"''=. presents.. Nagios Network Analyzer Multiple Vulnerabilities Affected versions: Nagios Network Analyzer = 2.2.0 PDF:...

1-click IPSEC VPN in the Cloud: algo

1-click IPSEC VPN in the Cloud Algo short for “Al Gore”, the V ice P resident of N etworks everywhere for inventing the Internet is a set of Ansible scripts that simplifies the setup of an IPSEC VPN. It contains the most secure defaults available, works with common cloud providers, and does not...

Python Steganography Tool: Matroschka

Python Steganography Tool Матрёшка mɐˈtrʲɵʂkə is a command-line steganography tool written in pure Python. You can use it to hide and encrypt images or text in the least significant bits of pixels in an image. Encryption The encryption uses HMAC-SHA256 to authenticate the hidden data. Therefore t...

Android KeyStore Encryption Scheme Broken, Researchers Say

The default implementation for KeyStore, the system in Android designed to store user credentials and cryptographic keys, is broken, researchers say. In a an academic paper published this week, researchers argue that the particular encryption scheme that KeyStore uses fails to protect the integri...

OpenSSL AES-NI Padding Oracle MitM Information Disclosure

The remote host is affected by a man-in-the-middle MitM information disclosure vulnerability due to an error in the implementation of ciphersuites that use AES in CBC mode with HMAC-SHA1 or HMAC-SHA256. The implementation is specially written to use the AES acceleration available in x86/amd64...

PHP Interpreter File Read Write

The vulnerability of the PHP interpreter lies in the lack of checks for the sequence “%00” in the path name. Exploiting this vulnerability allows an attacker to read arbitrary files or write to them using specially crafted input data for an application that calls the method DOMDocument.load, the...

DEBIAN-CVE-2016-2085

The evmverifyhmac function in security/integrity/evm/evmmain.c in the Linux kernel before 4.5 does not properly copy data, which makes it easier for local users to forge MAC values via a timing side-channel attack...

CVE-2016-2085

The evmverifyhmac function in security/integrity/evm/evmmain.c in the Linux kernel before 4.5 does not properly copy data, which makes it easier for local users to forge MAC values via a timing side-channel attack...

Linux kernel 'evm_verify_hmac()' Side-Channel Information Disclosure Vulnerability

The Linux kernel is the kernel used by the operating system Linux, released by the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that can be exploited by a local attacker to perform a timing bypass attack and obtain sensitive information...

OracleVM 3.3 / 3.4 : openssh (OVMSA-2016-0038)

The remote OracleVM system is missing necessary patches to address critical security updates : - CVE-2015-5600: MaxAuthTries limit bypass via duplicates in KbdInteractiveDevices 1245969 - CVE-2016-3115: missing sanitisation of input for X11 forwarding 1317816 - SSH2MSGDISCONNECT for user initiate...

PT-2016-5009

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 4.5 Description The issue concerns a timing side-channel attack that allows local users to forge MAC values. This is due to the evm verify hmac function in security/integrity/evm/evm main.c not properly copying...

UBUNTU-CVE-2016-2085

The evmverifyhmac function in security/integrity/evm/evmmain.c in the Linux kernel before 4.5 does not properly copy data, which makes it easier for local users to forge MAC values via a timing side-channel attack...

CenoCipher - Easy-To-Use, End-To-End Encrypted Communications Tool

CenoCipher is a free, open-source, easy-to-use tool for exchanging secure encrypted communications over the internet. It uses strong cryptography to convert messages and files into encrypted cipher-data, which can then be sent to the recipient via regular email or any other channel available, suc...

openSUSE Security Update : python-PyJWT (openSUSE-2015-620)

python-PyJWT was updated to fix unsafe usage of asymmetric keys in combination with HMAC algorithm bsc935544 %NASLMINLEVEL 70300 C Tenable Network Security, Inc. The descriptive text and package checks in this plugin were extracted from openSUSE Security Update openSUSE-2015-620. The text...

WordPress 3.8.2 cookie 伪造漏洞

0x00 背景 看了WordPress 3.8.2补丁分析 HMAC timing attack，眼界大开，原来还可以利用时间差来判断HMAC。 但我总觉得这个漏洞并不是简单的修复这个问题。 查看了官方提供的资料:“该漏洞是由WordPress的安全团队成员Jon Cave发现。”。 也许漏洞还有这样利用的可能。 0x01 PHP的特性 当PHP在进行 ”==”,”!=”等非严格匹配的情况下，会按照值的实际情况，进行强制转换。 当有一个对比参数是整数的时候，会把另外一个参数强制转换为整数。 0x02 分析修复的代码 官方版的diff只在php里改动了一个位置:...

PT-2018-8854

Name of the Vulnerable Software and Affected Versions mbed TLS versions prior to 1.3.22 mbed TLS versions prior to 2.1.10 mbed TLS versions prior to 2.7.0 Description The issue allows remote attackers to execute arbitrary code or cause a denial of service, resulting in heap corruption, via a...

[SECURITY] [DSA 3293-1] pyjwt security update

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 - ------------------------------------------------------------------------- Debian Security Advisory DSA-3293-1 [email protected] https://www.debian.org/security/ Alessandro Ghedini June 20, 2015 https://www.debian.org/security/faq -...

Debian DSA-3293-1 : pyjwt - security update

Tim McLean discovered that pyjwt, a Python implementation of JSON Web Token, would try to verify an HMAC signature using an RSA or ECDSA public key as secret. This could allow remote attackers to trick applications expecting tokens signed with asymmetric keys, into accepting arbitrary tokens. For...