5
New Today
 
Russian Information Security Company Positive Technologies also Fell Under th...
 
Barracuda Networks Recommends Customers to Replace Hacked ESGs despite Patches
 
CrowdStrike Introduces Charlotte AI, the World’s First Cyber Security A...
 
New White Phoenix Tool Helps Recover Files Partially Encrypted by Ransomware
 
Google Authenticator Will Have End-to-End Encryption
Top Nav
Posts Tagged ‘Exchange’
Sort
         
 
Read More
Global Cybersecurity Crisis: 60,000 Organizations Hacked Due to Microsoft Exchange Vulnerability
According to Bloomberg, more than 60 thousand organizations worldwide have been hacked due to exploitation of vulnerabilities in Microsoft Exchange (CVE-2021-26855, CVE-2021-26857, CVE-2021-26858 and CVE-2021-27065).

Microsoft discovered a hacker group known as Hafnium that carried out attacks using zero-day vulnerabilities in Microsoft Exchange servers.

To carry out the attack, the cybercriminals needed access to the local Microsoft Exchange server through port 443. If access was obtained, the attackers exploited the following vulnerabilities to gain remote access:

CVE-2021-26855 is a Server Side Request Forgery (SSRF) vulnerability in Exchange that allows an attacker to [...]
Norton Antivirus
8.4
Bitdefender
8.5
McAfee Antivirus
8.3
Kaspersky Internet Security
7.8
Avira Antivirus
7.1
BullGuard
7.8
Compare
Go