The issue is a remote code execution flaw in Remote Desktop Services (RDS) that it can be exploited by an unauthenticated attacker by connecting to the targeted system via the RDP and sending specially crafted requests.
As explained by Microsoft, this vulnerability could be exploited by malware with wormable capabilities, it could be exploited without user interaction, making it possible for malware to spread in an uncontrolled way into the target networks.
Several security experts have already developed their own exploit code for this issue without publicly disclosing it for obvious reasons.
Experts at the SANS Institute observed two partial exploits that are publicly available. Chaouki Bekrar, the founder of zero-day broker firm Zerodium, explained that the flaw can be exploited remotely by an unauthenticated user to gain access to a device with SYSTEM privileges. Researchers at McAfee developed a PoC exploit that could be exploited to get remote code execution.
Experts at NCC Group released detection rules for the detection of exploitation attempts for this issue. A similar
News of the day is that an attacker started scanning for Windows systems vulnerable to BlueKeep (CVE-2019-0708) vulnerability, fortunately without attempting to exploit it.
The scans were first detected on May 25, 2019, by experts at GreyNoise, a single threat actor launched them from the Tor network to hide their identities.
Experts believe that it’s a matter of time until security firms will detect exploit attempts in the wild.
(SecurityAffairs – hacking, Windows BlueKeep)
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