Tag: outlook web access
4 articles
Russian Spies Expand Email Attacks to Outlook
Russian spies have set their sights on Microsoft Outlook Web Access, exploiting a cross-site scripting flaw to launch targeted email attacks, just days after being called out for their abuse of a zero-day vulnerability in Zimbra Collaboration Suite. The notorious group, tracked as TA488 or Laundry Bear, has adapted their sneaky half-click technique to compromise on-premises Exchange Servers.
Russia-Aligned TA488 Exploits Outlook Web Access With Persistent Implant
A Russia-aligned espionage group, known as TA488, has launched a sophisticated attack using a half-click backdoor, exploiting a flaw in Outlook Web Access to deploy a persistent implant. This new implant, dubbed OWAReaper, allows the group to maintain server-side access, marking a significant escalation in their cyber operations.
Microsoft Fixes Zero-Day Flaw in Exchange Server Exploited in Attacks
Microsoft has patched a high-severity flaw in Exchange Server, known as CVE-2026-42897, which allowed hackers to execute malicious JavaScript in victims' browsers simply by sending a specially crafted email. This zero-day vulnerability was actively exploited in attacks, putting Outlook Web Access users at risk.
Microsoft Exchange Servers Targeted by Active CVE-2026-42897 Exploit
Microsoft warns of a high-severity vulnerability, CVE-2026-42897, in its Exchange Servers, allowing attackers to spoof network communications via a cleverly crafted email. This cross-site scripting flaw has been actively exploited, earning a concerning CVSS score of 8.1.