Microsoft Exchange
Microsoft pulls Exchange security updates over mail delivery issues
Microsoft has pulled the November 2024 Exchange security updates released during this month’s Patch Tuesday because of email delivery issues on servers using custom mail flow rules. The company announced it pulled the updates from Windows Update and the Download Center following widespread reports from admins saying that email had stopped flowing altogether. This issue affects customers using transport rules (also known […]
Microsoft Exchange adds warning to emails abusing spoofing flaw
Microsoft has disclosed a high-severity Exchange Server vulnerability that allows attackers to forge legitimate senders on incoming emails and make malicious messages a lot more effective. The security flaw (CVE-2024-49040) impacts Exchange Server 2016 and 2019, and was discovered by Solidlab security researcher Vsevolod Kokorin, who reported it to Microsoft earlier this year. “The problem is that […]
Iranian hackers now exploit Windows flaw to elevate privileges
The Iranian state-sponsored hacking group APT34, aka OilRig, has recently escalated its activities with new campaigns targeting government and critical infrastructure entities in the United Arab Emirates and the Gulf region. In these attacks, spotted by Trend Micro researchers, OilRig deployed a novel backdoor, targeting Microsoft Exchange servers to steal credentials, and also exploited the Windows […]