SSL/TLS: Expect Certificate Transparency (Expect-CT) Detection

Checks if the remote web server has Expect-CT enabled. SPDX-FileCopyrightText: 2017 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 if description...

Fixing HPKP with Pin Revocation

Last year, almost exactly to the day, I declared HPKP effectively dead. I believed then—and I still do—that HPKP is too complex and too dangerous to be worth the effort. The biggest problem lies in the fact that there is no sufficient margin of safety; pinning failures are always catastrophic...

Design/Logic Flaw

The CMS installer in Joomla! before 3.7.4 does not verify a user's ownership of a webspace, which allows remote authenticated users to gain control of the target application by leveraging Certificate Transparency logs...

CVE-2017-11364

The CMS installer in Joomla! before 3.7.4 does not verify a user's ownership of a webspace, which allows remote authenticated users to gain control of the target application by leveraging Certificate Transparency logs...

Google becomes its own Root Certificate Authority

In an effort to expand its certificate authority capabilities and build the "foundation of a more secure web," Google has finally launched its root certificate authority. In past few years, we have seen Google taking many steps to show its strong support for sites using HTTPS, like: Giving more...

Google's Key Transparency Simplifies Public Key Lookups

Google has taken a big step toward simplifying public key lookups at Internet scale with the release to open source on Thursday of Key Transparency. Key Transparency is admittedly a prototype, Google said, but it could provide significant relief for secure messaging systems suffering from...

Facebook Releases Free Certificate Transparency Monitoring Tool

The movement toward Certificate Transparency CT has brought about a healthy improvement, not only in the way organizations monitor and audit TLS certs, but also in cutting down the number of malicious or mistakenly issued certificates. CT, a framework developed by Google, works because Certificat...

Google to Make Certificate Transparency Mandatory By 2017

Google is making Certificate Transparency mandatory for its Chrome web browser by October 2017. Google software engineer Ryan Sleevi made the announcement in conjunction with the CA/Browser Forum that took place in Redmond, Washington last week. The move is an attempt to reduce the number of doma...

Chinese Certificate Authority 'mistakenly' gave out SSL Certs for GitHub Domains

A Chinese certificate authority CA appeared to be making a significant security blunder by handing out duplicate SSL certificates for a base domain if someone just has control over its any subdomain. The certificate authority, named WoSign, issued a base certificate for the Github domains to an...

How Certificate Transparency Monitoring Tool Helped Facebook Early Detect Duplicate SSL Certs

Earlier this year, Facebook came across a bunch of duplicate SSL certificates for some of its own domains and revoked them immediately with the help of its own Certificate Transparency Monitoring Tool service. Digital certificates are the backbone of our secure Internet, which protects sensitive...

What is Certificate Transparency? How It helps Detect Fake SSL Certificates

Do you know there is a huge encryption backdoor still exists on the Internet that most people don't know about? I am talking about the traditional Digital Certificate Management System… the weakest link, which is completely based on trust, and it has already been broken several times. To ensure t...

Misissued certificates

Security Misissued certificates Share October 29th, 2015 Recently, Google found a google.com pre-certificate in a CT log, without having ordered one. This lead to a series of incidents, also involving Opera and its security team. The backstory Google promptly contacted Symantec who had issued the...

DigiCert Offers Continuous Monitoring of Digital Certificates to Defeat Fraud

It’s an interesting time for certificate authorities. On the one hand, interest has never been higher in Web encryption, privacy and transport security, thanks to Edward Snowden. But on the other hand, the last few years has seen a steady stream of compromises of CAs, mis-issued certificates and...

Venafi to Launch Certificate Transparency Log

Three weeks after the first non-Google public log for Certificate Transparency was launched by DigiCert, officials at Venafi said that the company plans to debut its own public CT log. On Jan. 1 Google approved the use of DigiCert’s log, the first CT log that is independent and not operated by...

Certificate Transparency Moves Forward With First Independent Log

The Certificate Transparency scheme proposed by Google engineers has taken a couple of significant steps forward recently, with the approval of the first independent certificate log and the passing of a deadline for all extended validation certificates to be CT-compliant or lose the green indicat...

Google Releases End-To-End Chrome Extension to Open Source

Google yesterday announced that it has released the source code for its End-to-End extension for Chrome to open source via GitHub. End-to-End enables Gmail users to encrypt, sign and verify email messages within the Chrome browser, using OpenPGP. “We’ve always believed strongly that End-To-End mu...

Mozilla to Support Certificate Transparency in Firefox

Mozilla is planning to add support for Certificate Transparency checks in Firefox in the near future, but the company says that the feature won’t be turned on by default at first. Certificate Transparency is a proposal from engineers at Google that would help resolve some of the issues with...

Yahoo to Release End-to-End Encryption for Email Users

LAS VEGAS–Yahoo plans to enable end-to-end encryption for all of its Mail users next year. The company is working with Google on the project and the encryption will be mostly transparent for users, making it as simple as possible to use. Alex Stamos, CISO at Yahoo, said that the project has been ...

SSL Black List Aims to Publicize Certificates Associated With Malware

Malware and botnet operators are always adapting their tactics, trying to stay a step or two ahead of defensive technologies and techniques. One of the methods many attackers have adopted is using SSL to communicate with the infected machines they control, and a researcher has started a new...

Google catches Indian Government Agency with Fake Digital Certificates

Google has identified and blocked unauthorized digital certificates for a number of its domains issued by the National Informatics Centre NIC of India, a unit of India’s Ministry of Communications and Information Technology. National Informatics Center NIC holds several intermediate Certification...