BlueKeep scans observed from exclusively Tor exit nodes

GreyNoise experts detected scans for systems vulnerable to the BlueKeep (CVE-2019-0708) vulnerability from exclusively Tor exit nodes.

Microsoft Patch Tuesday updates for May 2019 address nearly 80 vulnerabilities, including an RDS vulnerability dubbed BlueKeep that can be exploited to carry out WannaCry-like attack.

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.

Other experts also announced to have successfully developed exploits for BlueKeep, including Kaspersky, Check Point, and MalwareTech.

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.

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Pierluigi Paganini

(SecurityAffairs – hacking, Windows BlueKeep)

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Pierluigi Paganini

Pierluigi Paganini is member of the ENISA (European Union Agency for Network and Information Security) Threat Landscape Stakeholder Group and Cyber G7 Group, he is also a Security Evangelist, Security Analyst and Freelance Writer. Editor-in-Chief at "Cyber Defense Magazine", Pierluigi is a cyber security expert with over 20 years experience in the field, he is Certified Ethical Hacker at EC Council in London. The passion for writing and a strong belief that security is founded on sharing and awareness led Pierluigi to find the security blog "Security Affairs" recently named a Top National Security Resource for US. Pierluigi is a member of the "The Hacker News" team and he is a writer for some major publications in the field such as Cyber War Zone, ICTTF, Infosec Island, Infosec Institute, The Hacker News Magazine and for many other Security magazines. Author of the Books "The Deep Dark Web" and “Digital Virtual Currency and Bitcoin”.