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Author

 Robert Graham

Profile of Robert Graham

News & Commentary Posts: 10
Articles by Robert Graham

How To Hack A Brazilian Power Company

11/17/2009
The recent "60 Minutes" story claiming hackers had caused power outages in Brazil was (likely) bogus, but that doesn't mean hackers can't do this. The story got widespread coverage in the Brazilian press, which meant hackers there were suddenly interested in the subject. And just days later, chatter appeared on Brazilian hacker Websites expressing interest in ONS, the Website of Brazil's national power grid operator.

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Partially Spilled COFEE

11/10/2009
It turns out the version of COFEE (Computer Online Forensic Evidence Extractor) posted to BitTorrent sites is incomplete: It contains only 45 commands, whereas Microsoft claims the tool executes more than 150 commands. It grabs neither browser history nor password hashes. It runs only built-in Windows commands, sysinternals tools, and resource kit tools.

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WiFi = Mobile Phone

11/6/2009
Traditionally, we've thought of WiFi as the way we connect to the Internet from our notebook computers. This is rapidly changing, with definite implications for security pros.

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PHPBB Password Analysis

2/6/2009
A popular Website, phpbb.com, was recently hacked. The hacker published approximately 20,000 user passwords from the site. This is like candy to us security professionals because it's hard data we can use to figure out how users choose passwords. I wrote a program to analyze these passwords looking for patterns, and came up with some interesting results.

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How Hackers Will Crack Your Password

1/21/2009
I've been cracking passwords lately for pen tests, and I'm surprised at how corporate guidelines don't really help people choose passwords. As in many places in security, a disconnect exists between how people secure systems and how hackers break systems. So the following is a brief description of what hackers do (or, at least, what I do when pen-testing systems).

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IE7 Zero-Day Lessons

12/19/2008
The recent zero-day IE7 vulnerability is a big deal. Hackers used it to hack into hundreds of thousands of machines, if not millions. Both IE7 and Vista are vastly more secure than their predecessors, yet this bug sliced right through them to give the hacker a robust exploit. We need to do a post mortem of this event to figure out what we should do in the future.

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Bending Skein Code

11/6/2008
Few of the submissions to NIST's hash standard contest have been optimized for desktop/server processors. One, though, known as Skein, seems to have considered this. It is designed specifically to run well on Intel Core 2 processors -- without sacrificing speed on other processors or security.

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For Cybersecurity to Be Proactive, Terrains Must Be Mapped
Craig Harber, Chief Technology Officer at Fidelis Cybersecurity,  10/8/2019
A Realistic Threat Model for the Masses
Lysa Myers, Security Researcher, ESET,  10/9/2019
USB Drive Security Still Lags
Dark Reading Staff 10/9/2019
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CVE-2019-17545
PUBLISHED: 2019-10-14
GDAL through 3.0.1 has a poolDestroy double free in OGRExpatRealloc in ogr/ogr_expat.cpp when the 10MB threshold is exceeded.
CVE-2019-17546
PUBLISHED: 2019-10-14
tif_getimage.c in LibTIFF through 4.0.10, as used in GDAL through 3.0.1 and other products, has an integer overflow that potentially causes a heap-based buffer overflow via a crafted RGBA image, related to a "Negative-size-param" condition.
CVE-2019-17547
PUBLISHED: 2019-10-14
In ImageMagick before 7.0.8-62, TraceBezier in MagickCore/draw.c has a use-after-free.
CVE-2019-17501
PUBLISHED: 2019-10-14
Centreon 19.04 allows attackers to execute arbitrary OS commands via the Command Line field of main.php?p=60807&type=4 (aka the Configuration > Commands > Discovery screen).
CVE-2019-17539
PUBLISHED: 2019-10-14
In FFmpeg before 4.2, avcodec_open2 in libavcodec/utils.c allows a NULL pointer dereference and possibly unspecified other impact when there is no valid close function pointer.