26 matches found
Microsoft Exchange vulnerabilities exploited once again for ransomware, this time with Babuk
By Chetan Raghuprasad and Vanja Svajcer, with contributions from Caitlin Huey. Cisco Talos recently discovered a malicious campaign deploying variants of the Babuk ransomware predominantly affecting users in the U.S. with smaller number of infections in U.K., Germany, Ukraine, Finland, Brazil,...
Have you patched the vulnerabilities in Microsoft Exchange Server?
THREAT LEVEL: Red. For a detailed advisory, download the pdf file here. Microsoft Exchange Server vulnerabilities have been officially patched for five months now. These vulnerabilities are actively exploited by multiple threat actors named DeadRinger. DeadRinger has been affecting the...
Microsoft Issues Security Patches for 89 Flaws — IE 0-Day Under Active Attacks
Microsoft plugged as many as 89 security flaws as part of its monthly Patch Tuesday updates released today, including fixes for an actively exploited zero-day in Internet Explorer that could permit an attacker to run arbitrary code on target machines. Of these flaws, 14 are listed as Critical, an...
CISA Issues Emergency Directive and Alert on Microsoft Exchange Vulnerabilities
CISA has issued Emergency Directive ED 21-02 and Alert AA21-062A addressing critical vulnerabilities in Microsoft Exchange products. Successful exploitation of these vulnerabilities allows an attacker to access on-premises Exchange servers, enabling them to gain persistent system access and contr...
CVE-2003-0904
Microsoft Exchange 2003 and Outlook Web Access OWA, when configured to use NTLM authentication, does not properly reuse HTTP connections, which can cause OWA users to view mailboxes of other users when Kerberos has been disabled as an authentication method for IIS 6.0, e.g. when SharePoint Servic...
