Advanced, persistent attackers have exploited a zero-day vulnerability (CVE-2024-39717) in Versa Director to compromise US-based managed service providers with a custom-made web shell dubbed VersaMem by the researchers. The malware harvests credentials enabling the attackers to access the providers’ downstream customers’ networks as an authenticated user. “Based on known and observed tactics and techniques, [Lumen’s] Black Lotus Labs attributes the zero-day exploitation of CVE-2024-39717 and operational use of the VersaMem web shell with moderate confidence … More →

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