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Blogs | RESEARCH | November 25, 2015

Privilege Escalation Vulnerabilities Found in Lenovo System Update

Lenovo released a new version of the Lenovo System Update advisory (https://support.lenovo.com/ar/es/product_security/lsu_privilege) about two new privilege escalation vulnerabilities I had reported to Lenovo a couple of weeks ago (CVE-2015-8109, CVE-2015-8110). IOActive and Lenovo have issued advisories on these issues.   Before digging into the details, let’s go over a high-level overview of how the Lenovo System Update pops up the GUI application with Administrator privileges.   Here is a discussion of the steps depicted above: 1 – The user starts System Update…

Sofiane Talmat
Blogs | INSIGHTS | March 20, 2011

Blackhat TPM Talk Follow-up

Since speaking at BlackHat DC 2009, there have been several inquiries in regards to the security of the SLE66PE series smartcard family. Here are some issues that should be pointed out: We have heard, “..it took 6 months to succeed..” The reality is it took 4 months to tackle obsticles found in any <200nm device such as: Capitance/load of probe needles when chip is running.   Powering the device inside the chamber of a FIB workstation.   Level-shifting a 1.8v core voltage following what we learned in #1 above.   Cutting out metal…

Cesar Cerrudo

Thoughts on Supply Chain Integrity

In this video presentation, John Sheehy, VP, Sales and Strategy at IOActive, shares his comprehensive view on the myriad considerations facing business as they undertake supply chain integrity assessments, focused on securing operations.

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IOACTIVE CORPORATE OVERVIEW (PDF)