April 13, 2024

Jun 05, 2023Ravie LakshmananZero Day / Cyber Assault

MOVEit Transfer App

Microsoft has formally linked the continued lively exploitation of a important flaw within the Progress Software program MOVEit Switch software to a risk actor it tracks as Lace Tempest.

“Exploitation is usually adopted by deployment of an online shell with information exfiltration capabilities,” the Microsoft Risk Intelligence group said in a collection of tweets immediately. “CVE-2023-34362 permits attackers to authenticate as any consumer.”

Lace Tempest, additionally referred to as Storm-0950, is a ransomware affiliate that overlaps with different teams similar to FIN11, TA505, and Evil Corp. It is also identified to function the Cl0p extortion web site.


The risk actor additionally has a observe file of exploiting completely different zero-day flaws to siphon information and extort victims, with the group not too long ago noticed weaponizing a extreme bug in PaperCut servers.

CVE-2023-34362 pertains to an SQL injection vulnerability in MOVEit Switch that allows unauthenticated, distant attackers to realize entry to the database and execute arbitrary code.

There are believed to be at the least over 3,000 uncovered hosts using the MOVEit Switch service, in line with information from assault floor administration firm Censys.


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Google-owned Mandiant, which is monitoring the exercise beneath the moniker UNC4857 and has labeled the online shell LEMURLOOT, mentioned it recognized broad tactical connections with FIN11.

The U.S. Cybersecurity and Infrastructure Safety Company (CISA), final week, added the flaw to its Identified Exploited Vulnerabilities (KEV) catalog, recommending federal businesses to use vendor-provided patches by June 23, 2023.

The event follows the same zero-day mass exploitation of Accellion FTA servers in December 2020 and GoAnywhere MFT in January 2023, making it crucial that customers apply the patches as quickly as doable to safe towards potential dangers.

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