Presented at
DEF CON 31 (2023),
Aug. 12, 2023, noon
(115 minutes)
Addressing security vulnerabilities begins with verifying the impact on an environment. Merely having a vulnerable package installed does not guarantee exploitability, as several conditions must align for the vulnerability to be applicable and exploitable. For example: is the operating system in question susceptible to the vulnerability? is the vulnerable component loaded to memory? is the required configuration in place? is there a patch installed? And more... Standard vulnerability scanners simply do not take these factors into account and thus require manual triage in order to answer “Can a vulnerability be exploited in a given environment?”. ‘Am I Exploitable?’ (MI-X), is an open-source tool aimed at effectively determining whether a local host or running container is truly affected by a specific vulnerability by accounting for all factors which affect *actual* exploitability. MI-X also prints out the logical steps it takes in order to reach a decision and can also provide a graphical representation of the validation flow. The tool can therefore help practitioners understand what are the factors that affect exploitability for each of the supported vulnerabilities.
Presenters:
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Yotam Perkal
Yotam leads the vulnerability research team at Rezilion, focusing on research around vulnerability validation, mitigation, and remediation. Prior to Rezilion, Yotam filled several roles at PayPal Security organization, dealing with vulnerability management, threat intelligence, and Insider threat. Additionally, Yotam takes part in several OpenSSF working groups around open-source security as well as several CISA work streams around SBOM and VEX and is also a member of the PyCon Israel organization committee. He is passionate about Cyber Security and Machine Learning and is especially intrigued by the intersection between the domains, whether it be using ML in order to help solve Cyber Security challenges or exploring the challenges in securing ML applications.
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Ofri Ouzan
Ofri Ouzan is an experienced Security Researcher who has been working in the cybersecurity field for over four years. She specializes in conducting security research on Windows, Linux, Cloud Platforms, and containerized applications with an emphasis on vulnerabilities. Her expertise lies in finding and solving complex problems in the cyber field, developing automation and open-source tools.
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