Use Padding Oracle attacks to obtain the encrypted key-vulnerability warning-the black bar safety net

0×0 0 Preface In this article I want to share some of the use of the padding oracle vulnerability practical tips, this type of vulnerability allows an attacker to decrypt the ciphertext and the encrypted plaintext. About the padding oracle attack concept and the working principle of the more...

[SECURITY] Fedora 22 Update: nss-3.20.1-1.0.fc22

Network Security Services NSS is a set of libraries designed to support cross-platform development of security-enabled client and server applications. Applications built with NSS can support SSL v2 and v3, TLS, PKCS 5, PKCS 7, PKCS 11, PKCS 12, S/MIME, X.509 v3 certificates, and other security...

SUSE: Security Advisory for wpa_supplicant (SUSE-SU-2014:1356-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2015 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 ifdescription...

FreeBSD : mbedTLS/PolarSSL -- multiple vulnerabilities (5d280761-6bcf-11e5-9909-002590263bf5)

ARM Limited reports : Florian Weimar from Red Hat published on Lenstra's RSA-CRT attach for PKCS1 v1.5 signatures. These releases include countermeasures against that attack. Fabian Foerg of Gotham Digital Science found a possible client-side NULL pointer dereference, using the AFL Fuzzer. This...

F5 BIG-IP - GnuTLS RSA PKCS signature vulnerability CVE-2015-0282

The remote host is missing a security patch. SPDX-FileCopyrightText: 2015 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:/h:f5:big-ip"; if description...

F5 Networks BIG-IP : GnuTLS RSA PKCS signature vulnerability (K17327)

GnuTLS before 3.1.0 does not verify that the RSA PKCS 1 signature algorithm matches the signature algorithm in the certificate, which allows remote attackers to conduct downgrade attacks via unspecified vectors. CVE-2015-0282 C Tenable Network Security, Inc. The descriptive text and package check...

SOL17327 - GnuTLS RSA PKCS signature vulnerability CVE-2015-0282

Vulnerability Recommended Actions If you are running a version listed in the Versions known to be vulnerable column, you can eliminate this vulnerability by upgrading to a version listed in the Versions known to be not vulnerable column. If the table lists only an older version than what you are...

F5 BIG-IP - PKCS #7 vulnerability CVE-2015-1790

The remote host is missing a security patch. SPDX-FileCopyrightText: 2015 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:/h:f5:big-ip"; if description...

[SECURITY] Fedora 21 Update: gnutls-3.3.17-1.fc21

GnuTLS is a secure communications library implementing the SSL, TLS and DTLS protocols and technologies around them. It provides a simple C language application programming interface API to access the secure communications protocols as well as APIs to parse and write X.509, PKCS 12, OpenPGP and...

The vulnerability of the OpenSSL library, which allows a hacker to trigger a service failure

The vulnerability of the PKCS7dataDecode function in the OpenSSL library is related to pointer swapping errors. Exploiting this vulnerability could allow a malicious actor to cause service failures when using the PKCS7 specification...

openSUSE Security Update : libressl (openSUSE-2015-507) (Logjam)

libressl was updated to version 2.2.1 to fix 16 security issues. LibreSSL is a fork of OpenSSL. Because of that CVEs affecting OpenSSL often also affect LibreSSL. These security issues were fixed : - CVE-2014-3570: The BNsqr implementation in OpenSSL before 0.9.8zd, 1.0.0 before 1.0.0p, and 1.0.1...

Puppet Enterprise 3.x < 3.8.1 Multiple Vulnerabilities (Logjam)

According to its self-reported version number, the Puppet Enterprise application running on the remote host is 3.x prior to 3.8.1. It is, therefore, affected by the following vulnerabilities : - An XML external entity injection XXE flaw exists in the Apache ActiveMQ component due to a faulty...

Multiple Security vulnerabilities in AIX OpenSSL

IBM SECURITY ADVISORY First Issued: Wed Jul 15 00:20:05 CDT 2015 | Updated: Wed Aug 12 05:13:23 CDT 2015 | Update: A new ifix for Power8 machines having OpenSSL v1.0.1.514 has been added | Update: "A. FIXES" section. The most recent version of this document is available here:...

CentOS 5 : openssl (CESA-2015:1197) (Logjam)

Updated openssl packages that fix three security issues are now available for Red Hat Enterprise Linux 5. Red Hat Product Security has rated this update as having Moderate security impact. Common Vulnerability Scoring System CVSS base scores, which give detailed severity ratings, are available fo...

RedHat Update for openssl RHSA-2015:1197-01

The remote host is missing an update for the SPDX-FileCopyrightText: 2015 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 ifdescription...

OpenSSL: PKCS7 crash with missing EnvelopedContent

A NULL pointer dereference was found in the way OpenSSL handled certain PKCS7 inputs. An attacker able to make an application using OpenSSL verify, decrypt, or parse a specially crafted PKCS7 input could cause that application to crash. TLS/SSL clients and servers using OpenSSL were not affected ...

RHEL 5 : openssl (RHSA-2015:1197) (Logjam)

Updated openssl packages that fix three security issues are now available for Red Hat Enterprise Linux 5. Red Hat Product Security has rated this update as having Moderate security impact. Common Vulnerability Scoring System CVSS base scores, which give detailed severity ratings, are available fo...

OpenSSL 0.9.8 < 0.9.8zg / 1.0.0 < 1.0.0s Multiple Vulnerabilities

Binary data 8791.prm...

OpenSSL 1.0.1 < 1.0.1n / 1.0.2 < 1.0.2b Multiple Vulnerabilities (Logjam)

Binary data 8790.prm...

Updated openssl package fixes security vulnerabilities

A vulnerability in the TLS protocol allows a man-in-the-middle attacker to downgrade vulnerable TLS connections using ephemeral Diffie-Hellman key exchange to 512-bit export-grade cryptography. This vulnerability is known as Logjam CVE-2015-4000. When processing an ECParameters structure OpenSSL...