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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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Sodinokibi Ransomware: Where Attackers' Money Goes
Kelly Sheridan, Staff Editor, Dark Reading,  10/15/2019
Data Privacy Protections for the Most Vulnerable -- Children
Dimitri Sirota, Founder & CEO of BigID,  10/17/2019
State of SMB Insecurity by the Numbers
Ericka Chickowski, Contributing Writer,  10/17/2019
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CVE-2017-8087
PUBLISHED: 2019-10-22
Information Leakage in PPPoE Packet Padding in AVM Fritz!Box 7490 with Firmware versions Fritz!OS 6.80 and 6.83 allows physically proximate attackers to view slices of previously transmitted packets or portions of memory via via unspecified vectors.
CVE-2019-10079
PUBLISHED: 2019-10-22
Apache Traffic Server is vulnerable to HTTP/2 setting flood attacks. Earlier versions of Apache Traffic Server didn't limit the number of setting frames sent from the client using the HTTP/2 protocol. Users should upgrade to Apache Traffic Server 7.1.7, 8.0.4, or later versions.
CVE-2019-12147
PUBLISHED: 2019-10-22
The Sangoma Session Border Controller (SBC) 2.3.23-119 GA web interface is vulnerable to Argument Injection via special characters in the username field. Upon successful exploitation, a remote unauthenticated user can create a local system user with sudo privileges, and use that user to login to the...
CVE-2019-12148
PUBLISHED: 2019-10-22
The Sangoma Session Border Controller (SBC) 2.3.23-119 GA web interface is vulnerable to an authentication bypass via an argument injection vulnerability involving special characters in the username field. Upon successful exploitation, a remote unauthenticated user can login into the device's admin ...
CVE-2019-12290
PUBLISHED: 2019-10-22
GNU libidn2 before 2.2.0 fails to perform the roundtrip checks specified in RFC3490 Section 4.2 when converting A-labels to U-labels. This makes it possible in some circumstances for one domain to impersonate another. By creating a malicious domain that matches a target domain except for the inclusi...