SharePoint Security Chaos: Microsoft’s Flaws Leave Servers Wide Open!
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added two Microsoft SharePoint flaws to its Known Exploited Vulnerabilities catalog. It turns out, nation-state actors aren’t just after our secrets—they’re after our SharePoint servers too! Time to patch up and keep the hackers at bay.
Hot Take:
Who would have thought that Microsoft’s SharePoint could become the latest hot spot for a cyber soap opera featuring not one but several villainous vulnerabilities? It’s like SharePoint decided to host its own reality show, “Survivor: Cyber Island,” with hackers as the contestants. The plot twist? Chinese hacking groups manage to sneak past security like a cat burglar at a jewelry store clearance sale, all while some organizations naively believe AMSI is a magic shield. Spoiler alert: it’s not!
Key Points:
- CISA adds two SharePoint vulnerabilities, CVE-2025-49704 and CVE-2025-49706, to its Known Exploited Vulnerabilities catalog.
- Chinese hacking groups, Linen Typhoon and Violet Typhoon, exploit these flaws in on-premises SharePoint servers.
- Microsoft identifies four related vulnerabilities, including the notorious ToolShell chain.
- Akamai explains the root cause of CVE-2025-53770, involving an authentication bypass and insecure deserialization.
- WatchTowr Labs warns against relying solely on AMSI for protection, emphasizing the need for patching.