Valentina Palmiotti

Vulnerability and Exploit Researcher, Adversary Services, IBM X-Force

Security researcher focused on low-level vulnerabilities, exploit development, and offensive security.

Adversary Services October 10, 2023

Critically close to zero(day): Exploiting Microsoft Kernel streaming service

10 min read - Last month Microsoft patched a vulnerability in the Microsoft Kernel Streaming Server, a Windows kernel component used in the virtualization and sharing of camera devices. The vulnerability, CVE-2023-36802, allows a local attacker to escalate privileges to SYSTEM. This blog post…

Adversary Services August 2, 2023

MSMQ QueueJumper (RCE Vulnerability): An in-depth technical analysis

13 min read - The security updates released by Microsoft on April 11, 2023, addressed over 90 individual vulnerabilities. Of particular note was CVE-2023-21554, dubbed QueueJumper, a remote code execution vulnerability affecting the Microsoft Message Queueing (MSMQ) service. MSMQ is an optional Windows component…

Adversary Services March 21, 2023

Patch Tuesday -> exploit Wednesday: Pwning windows ancillary function driver for WinSock (afd.sys) in 24 hours

12 min read - ‘Patch Tuesday, Exploit Wednesday’ is an old hacker adage that refers to the weaponization of vulnerabilities the day after monthly security patches become publicly available. As security improves and exploit mitigations become more sophisticated, the amount of research and development…

Adversary Services January 20, 2023

Dissecting and Exploiting TCP/IP RCE Vulnerability “EvilESP”

10 min read - September’s Patch Tuesday unveiled a critical remote vulnerability in tcpip.sys, CVE-2022-34718. The advisory from Microsoft reads: “An unauthenticated attacker could send a specially crafted IPv6 packet to a Windows node where IPsec is enabled, which could enable a remote code…

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Valentina Palmiotti

Critically close to zero(day): Exploiting Microsoft Kernel streaming service

MSMQ QueueJumper (RCE Vulnerability): An in-depth technical analysis

Patch Tuesday -> exploit Wednesday: Pwning windows ancillary function driver for WinSock (afd.sys) in 24 hours

Dissecting and Exploiting TCP/IP RCE Vulnerability “EvilESP”

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Topic updates