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THE THREAT eSentire is aware of widespread exploitation attempts targeting the recently disclosed ownCloud vulnerability CVE-2023-49103. CVE-2023-49103 (CVSS: 10) is tracked as a disclosure of… READ NOW
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eSentire is The Authority in Managed Detection and Response Services, protecting the critical data and applications of 2000+ organizations in 80+ countries from known and unknown cyber threats. Founded in 2001, the company's mission is to hunt, investigate and stop cyber threats before they become business disrupting events.
Waterloo, ON and GITEX GLOBAL 2023, Dubai, UAE – October 18, 2023 – eSentire, Inc., the Authority in Managed Detection and Response (MDR), today announced that Inspira Enterprise Inc, (Inspira), a… READ NOW
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eSentire has recently observed active exploitation attempts targeting the WinSock File Transfer Protocol (WS_FTP) vulnerability CVE-2023-40044. Observed attacks resulted in the attempted deployment of the Metasploit payload Meterpreter and the adversary simulation tool Cobalt Strike.
CVE-2023-40044 (CVSS: 10) is classified as a WS_FTP .NET Deserialization vulnerability in the Ad Hoc Transfer Module. Exploitation would allow an unauthenticated threat actor to achieve remote command execution on the underlying operating system of the WS_FTP Server. The vulnerability was publicly disclosed along with security patches on September 27th, 2023. eSentire observed exploitation attempts beginning on September 30th.
As exploitation is ongoing, it is critical that organizations apply the relevant security patches immediately.
The disclosure of CVE-2023-40044 was one of seven vulnerabilities announced by Progress Community. While CVE-2023-40044 should be prioritized for immediate patching due to exploitation, organizations should review and prioritize the other vulnerabilities disclosed in this release. The exploitation of CVE-2023-40044 may indicate attacker interest in the platform.
Threat actors exploit CVE-2023-40044 by sending a specially crafted post request to an unpatched WS_FTP server. Proof-of-Concept (PoC) exploit code for CVE-2023-40044 was publicly disclosed on September 29th. The release of PoC code will allow less skilled threat actors to adopt and employ the exploit in real-world attacks. At this point, it is likely that multiple threat actors are actively exploiting the vulnerability in opportunistic attacks for a variety of malicious purposes.
Indicators of Compromise