CVE-2015-1635 Scanner

Microsoft Windows, including versions 7 SP1, Windows Server 2008 R2 SP1, Windows 8, 8.1, and Server 2012 Gold and R2, are widely used operating systems across the globe, serving as the foundation for countless corporate, governmental, and personal computing environments. They offer a wide range of features designed to support everything from basic desktop operations to complex server-based applications and services. Due to their widespread adoption, they are a critical part of the IT infrastructure in many organizations. The software's flexibility and extensive compatibility make it a target for attackers seeking to exploit vulnerabilities for malicious purposes.

The identified vulnerability in HTTP.sys of Microsoft Windows allows remote attackers to execute arbitrary code via specially crafted HTTP requests. This critical vulnerability, if exploited, could allow an attacker to gain control over the affected system. The nature of this flaw means it can be triggered without any authentication, making it particularly severe as it could be exploited by anyone who can send HTTP requests to the vulnerable system.

This vulnerability stems from how HTTP.sys processes certain HTTP requests. By sending a specially crafted HTTP request that includes a range header with an overly large range value, an attacker can cause the system to execute arbitrary code. This could potentially allow the attacker to take control of the affected system. The vulnerability is due to improper handling of these requests by the HTTP protocol stack, which could lead to remote code execution.

Exploitation of this vulnerability could lead to unauthorized access and control of the affected systems. This can result in data theft, installation of malware, disruption of services, and potentially spreading the attack to other systems within the network. The severity of this vulnerability underscores the potential for significant impact on confidentiality, integrity, and availability of the data and systems involved.

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References

• https://www.exploit-db.com/exploits/36773
• https://www.securitysift.com/an-analysis-of-ms15-034/
• https://nvd.nist.gov/vuln/detail/CVE-2015-1635