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Hackers Reveal How Code Injection Attack Works in Signal Messaging App

Hackers Reveal How Code Injection Attack Works in Signal Messaging App

May 14, 2018
After the revelation of the eFail attack details, it's time to reveal how the recently reported code injection vulnerability in the popular end-to-end encrypted Signal messaging app works. As we reported last weekend, Signal has patched its messaging app for Windows and Linux that suffered a code injection vulnerability discovered and reported by a team of white-hat hackers from Argentina. The vulnerability could have been exploited by remote attackers to inject a malicious payload inside the Signal desktop app running on the recipients' system just by sending them a specially crafted link—without requiring any user interaction. According to a blog post published today, the vulnerability was accidentally discovered while researchers–Iván Ariel Barrera Oro, Alfredo Ortega and Juliano Rizzo–were chatting on Signal messenger and one of them shared a link of a vulnerable site with an XSS payload in its URL. However, the XSS payload unexpectedly got executed on the Sig
Signal — Open Source iPhone App to Make Free End-to-End Encrypted Voice Calls

Signal — Open Source iPhone App to Make Free End-to-End Encrypted Voice Calls

Jul 30, 2014
Good News for Privacy Lovers!! An open source software group Open Whisper Systems has released the first free and Open Source phone call application for iPhone users, which is specifically designed to make secure and encrypted calls. When we talk about the privacy of our messages and voice calls, Open Whisper Systems has usually a very strong track record. Whisper is the company behind the development of RedPhone and TextSecure for Android, providing encrypted calls and texts respectively to users. Moving on to iOS devices , the company decided to produce simplest and easiest interfaces yet. Better known as Signal , a free iOS app designed to enable easy and strongly encrypted voice calls . The Signal application for iPhone is completely compatible with OWS's time-tested and well-known RedPhone . Eventually, Signal will be a combination of both RedPhone and TextSecure in a single Android application , according to a blog post . Signal makes use of end-to-end encrypt
Midnight Blizzard and Cloudflare-Atlassian Cybersecurity Incidents: What to Know

Midnight Blizzard and Cloudflare-Atlassian Cybersecurity Incidents: What to Know

Feb 13, 2024SaaS Security / Data Breach
The Midnight Blizzard and Cloudflare-Atlassian cybersecurity incidents raised alarms about the vulnerabilities inherent in major SaaS platforms. These incidents illustrate the stakes involved in SaaS breaches — safeguarding the integrity of SaaS apps and their sensitive data is critical but is not easy. Common threat vectors such as sophisticated spear-phishing, misconfigurations and vulnerabilities in third-party app integrations demonstrate the complex security challenges facing IT systems. In the case of Midnight Blizzard, password spraying against a test environment was the initial attack vector. For Cloudflare-Atlassian, threat actors initiated the attack via compromised  OAuth tokens  from a prior breach at Okta, a SaaS identity security provider.  What Exactly Happened? Microsoft Midnight Blizzard Breach Microsoft was targeted by the Russian "Midnight Blizzard" hackers (also known as Nobelium, APT29, or Cozy Bear) who are linked to the SVR, the Kremlin's forei
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