RSS ze světa hackingu


New Stealthy Rootkit Infiltrated Networks of High-Profile Organizations

An unknown threat actor with the capabilities to evolve and tailor its toolset to target environments infiltrated high-profile organizations in Asia and Africa with an evasive Windows rootkit since at least 2018. Called 'Moriya,' the malware is a "passive backdoor which allows attackers to inspect all incoming traffic to the infected machine, filter out packets that are marked as designated for…

Datum: 7. 5. 2021

CISO Challenge: Check Your Cybersecurity Skills On This New Competition Site

InfoSec leaders tend to be a specific type. Their jobs require them to think of possible threats, take actions that may not pay immediate results, plan for unknown security risks, and react quickly when emergencies arise, often before the morning's first coffee. The high-stakes position also means that CISOs need to keep their knowledge and skills sharp – you can never really know what's around…

Datum: 6. 5. 2021

Critical Flaws Hit Cisco SD-WAN vManage and HyperFlex Software

Networking equipment major Cisco has rolled out software updates to address multiple critical vulnerabilities impacting HyperFlex HX and SD-WAN vManage Software that could allow an attacker to perform command injection attacks, execute arbitrary code, and gain access to sensitive information. In a series of advisories published on May 5, the company said there are no workarounds that remediate…

Datum: 6. 5. 2021

New Qualcomm Chip Bug Could Let Hackers Spy On Android Devices

Cybersecurity researchers have disclosed a new security vulnerability in Qualcomm's mobile station modems (MSM) that could potentially allow an attacker to leverage the underlying Android operating system to slip malicious code into mobile phones, undetected. "If exploited, the vulnerability would have allowed an attacker to use Android OS itself as an entry point to inject malicious and…

Datum: 6. 5. 2021

New Spectre Flaws in Intel and AMD CPUs Affect Billion of Computers

When Spectre, a class of critical vulnerabilities impacting modern processors, was publicly revealed in January 2018, the researchers behind the discovery said, "As it is not easy to fix, it will haunt us for quite some time," explaining the inspiration behind naming the speculative execution attacks. Indeed, it's been more than three years, and there is no end to Spectre in sight. A team of…

Datum: 6. 5. 2021

New Study Warns of Security Threats Linked to Recycled Phone Numbers

A new academic study has highlighted a number of privacy and security pitfalls associated with recycling mobile phone numbers that could be abused to stage a variety of exploits, including account takeovers, conduct phishing and spam attacks, and even prevent victims from signing up for online services. Nearly 66% of the recycled numbers that were sampled were found to be tied to previous owners…

Datum: 5. 5. 2021

BIOS PrivEsc Bugs Affect Hundreds of Millions of Dell PCs Worldwide

PC maker Dell has issued an update to fix multiple critical privilege escalation vulnerabilities that went undetected since 2009, potentially allowing attackers to gain kernel-mode privileges and cause a denial-of-service condition. The issues, reported to Dell by researchers from SentinelOne on Dec. 1, 2020, reside in a firmware update driver named "dbutil_2_3.sys" that comes pre-installed on…

Datum: 5. 5. 2021

ALERT — New 21Nails Exim Bugs Expose Millions of Email Servers to Hacking

The maintainers of Exim have released patches to remediate as many as 21 security vulnerabilities in its software that could enable unauthenticated attackers to achieve complete remote code execution and gain root privileges. Collectively named '21Nails,' the flaws include 11 vulnerabilities that require local access to the server and 10 other weaknesses that could be exploited remotely. The…

Datum: 5. 5. 2021

New Pingback Malware Using ICMP Tunneling to Evade C&C Detection

Researchers on Tuesday disclosed a novel malware that uses a variety of tricks to stay under the radar and evade detection, while stealthily capable of executing arbitrary commands on infected systems. Called 'Pingback,' the Windows malware leverages Internet Control Message Protocol (ICMP) tunneling for covert bot communications, allowing the adversary to utilize ICMP packets to piggyback…

Datum: 4. 5. 2021

How Should the Service Desk Reset Passwords?

Ask the average helpdesk technician what they do all day, and they will probably answer by saying that they reset passwords. Sure, helpdesk technicians do plenty of other things too, but in many organizations, a disproportionate number of helpdesk calls are tied to password resets. On the surface, having a helpdesk technician reset a user’s password probably doesn’t seem like a big deal. After…

Datum: 4. 5. 2021

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