Author
 Vincent Liu

Profile of Vincent Liu

News & Commentary Posts: 11
Vincent Liu (CISSP) is a Managing Partner at Stach & Liu, a security consulting firm providing services to the Fortune 500, global financial institutions, and high-tech startups. In this role, he oversees firm strategy, practice development, and client matters.

Vincent is a well-recognized industry expert with columns in Dark Reading and SecurityWeek. He has presented at Black Hat, ToorCon, InfoSec World, SANS, and Microsoft BlueHat. In addition to regularly being cited by the press, Vincent has been featured on Al Jazeera television news, quoted in USA Today, and interviewed in CSO Magazine. He has also co-authored several industry best-selling books, including: Hacking Exposed Wireless 1st and 2nd Edition; Hacking Exposed Web Applications 3rd Edition, and most recently Web Application Security A Beginner's Guide.

Prior to founding Stach & Liu, Vincent led the Attack & Penetration team for the Global Security unit at Honeywell International. Before that, he was a consultant with the Ernst & Young Advanced Security Centers and an analyst at the National Security Agency. In these roles, he gained extensive experience conducting risk assessments, analyzing source code, and performing penetration testing.

Vincent holds a Bachelor of Science and Engineering from the University of Pennsylvania with a major in Computer Science and Engineering and a minor in Psychology.

He can be reached on Twitter @vinnieliu.
Articles by Vincent Liu

The What And The Why Of Professional Penetration Testing

9/20/2010
Welcome to the first in a series of posts on professional penetration testing. During the course of the next few entries, I will shed light on the often confusing and rarely straightforward world of penetration testing based on my experience during the past decade as both a professional penetration tester and a manager of penetration testing teams.

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CVE-2014-9710
Published: 2015-05-27
The Btrfs implementation in the Linux kernel before 3.19 does not ensure that the visible xattr state is consistent with a requested replacement, which allows local users to bypass intended ACL settings and gain privileges via standard filesystem operations (1) during an xattr-replacement time windo...

CVE-2014-9715
Published: 2015-05-27
include/net/netfilter/nf_conntrack_extend.h in the netfilter subsystem in the Linux kernel before 3.14.5 uses an insufficiently large data type for certain extension data, which allows local users to cause a denial of service (NULL pointer dereference and OOPS) via outbound network traffic that trig...

CVE-2015-2666
Published: 2015-05-27
Stack-based buffer overflow in the get_matching_model_microcode function in arch/x86/kernel/cpu/microcode/intel_early.c in the Linux kernel before 4.0 allows context-dependent attackers to gain privileges by constructing a crafted microcode header and leveraging root privileges for write access to t...

CVE-2015-2830
Published: 2015-05-27
arch/x86/kernel/entry_64.S in the Linux kernel before 3.19.2 does not prevent the TS_COMPAT flag from reaching a user-mode task, which might allow local users to bypass the seccomp or audit protection mechanism via a crafted application that uses the (1) fork or (2) close system call, as demonstrate...

CVE-2015-2922
Published: 2015-05-27
The ndisc_router_discovery function in net/ipv6/ndisc.c in the Neighbor Discovery (ND) protocol implementation in the IPv6 stack in the Linux kernel before 3.19.6 allows remote attackers to reconfigure a hop-limit setting via a small hop_limit value in a Router Advertisement (RA) message.

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