RSS ze světa hackingu


New Microsoft Exchange 'ProxyToken' Flaw Lets Attackers Reconfigure Mailboxes

Details have emerged about a now-patched security vulnerability impacting Microsoft Exchange Server that could be weaponized by an unauthenticated attacker to modify server configurations, thus leading to the disclosure of Personally Identifiable Information (PII). The issue, tracked as CVE-2021-33766 (CVSS score: 7.3) and coined "ProxyToken," was discovered by Le Xuan Tuyen, a researcher at the…

Datum: 31. 8. 2021

How Does MTA-STS Improve Your Email Security?

Simple Mail Transfer Protocol or SMTP has easily exploitable security loopholes. Email routing protocols were designed in a time when cryptographic technology was at a nascent stage (e.g., the de-facto protocol for email transfer, SMTP, is nearly 40 years old now), and therefore security was not an important consideration.  As a result, in most email systems encryption is still opportunistic,…

Datum: 30. 8. 2021

Get Lifetime Access to 24 Professional Cybersecurity Certification Prep Courses

Not all heroes wear capes. Cybersecurity professionals are digital warriors who use their knowledge and skill to battle malicious hackers.  Sounds like an exciting career, right?  If the comic-book comparisons aren’t working for you, perhaps some figures will. According to ZipRecruiter, the average salary of a cybersecurity professional is just over $100,000 a year. The Complete 2021…

Datum: 29. 8. 2021

LockFile Ransomware Bypasses Protection Using Intermittent File Encryption

A new ransomware family that emerged last month comes with its own bag of tricks to bypass ransomware protection by leveraging a novel technique called "intermittent encryption." Called LockFile, the operators of the ransomware has been found exploiting recently disclosed flaws such as ProxyShell and PetitPotam to compromise Windows servers and deploy file-encrypting malware that scrambles only…

Datum: 28. 8. 2021

Microsoft Warns of Widespread Phishing Attacks Using Open Redirects

Microsoft is warning of a widespread credential phishing campaign that leverages open redirector links in email communications as a vector to trick users into visiting malicious websites while effectively bypassing security software. "Attackers combine these links with social engineering baits that impersonate well-known productivity tools and services to lure users into clicking," Microsoft 365…

Datum: 28. 8. 2021

Microsoft, Google to Invest $30 Billion in Cybersecurity Over Next 5 Years

Google and Microsoft said they are pledging to invest a total of $30 billion in cybersecurity advancements over the next five years, as the U.S. government partners with private sector companies to address threats facing the country in the wake of a string of sophisticated malicious cyber activity targeting critical infrastructure, laying bare the risks to data, organizations, and governments…

Datum: 27. 8. 2021

Kaseya Issues Patches for Two New 0-Day Flaws Affecting Unitrends Servers

U.S. technology firm Kaseya has released security patches to address two zero-day vulnerabilities affecting its Unitrends enterprise backup and continuity solution that could result in privilege escalation and authenticated remote code execution. The two weaknesses are part of a trio of vulnerabilities discovered and reported by researchers at the Dutch Institute for Vulnerability Disclosure (…

Datum: 27. 8. 2021

Critical Cosmos Database Flaw Affected Thousands of Microsoft Azure Customers

Cloud infrastructure security company Wiz on Thursday revealed details of a now-fixed Azure Cosmos database vulnerability that could have been potentially exploited to grant any Azure user full admin access to other customers' database instances without any authorization. The flaw, which grants read, write, and delete privileges, has been dubbed "ChaosDB," with Wiz researchers noting that "the…

Datum: 27. 8. 2021

The Increased Liability of Local In-home Propagation

Today I discuss an attack vector conducive to cross-organizational spread, in-home local propagation. Though often overlooked, this vector is especially relevant today, as many corporate employees remain working from home. In this post, I contrast in-home local propagation with traditional vectors through which a threat (ransomware in particular) spreads throughout an organization. I discuss the…

Datum: 26. 8. 2021

F5 Releases Critical Security Patches for BIG-IP and BIG-IQ Devices

Enterprise security and network appliance vendor F5 has released patches for more than two dozen security vulnerabilities affecting multiple versions of BIG-IP and BIG-IQ devices that could potentially allow an attacker to perform a wide range of malicious actions, including accessing arbitrary files, escalating privileges, and executing JavaScript code. Of the 29 bugs addressed, 13 are…

Datum: 26. 8. 2021

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