Dark Reading is part of the Informa Tech Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them.Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

Application Security //

Database Security

7/1/2014
01:15 PM
Connect Directly
Google+
Twitter
RSS
E-Mail vvv
50%
50%

Dark Reading Radio: Oracle Database Security Hacked

Learn about newly found vulnerabilities in a key database security feature tomorrow in the next episode of Dark Reading Radio.

Renowned Oracle database researcher/hacker David Litchfield has kept the database company honest for years now when it comes to security: No one knows security holes in Oracle databases like Litchfield.

The pressure his research has put on the database giant has yielded security improvements to its software over the past few years, and Litchfield was pleasantly surprised to see the new data redaction feature Oracle recently added to help protect sensitive information stored in the database. Data redaction, which protects sensitive data such as credit card numbers and SSNs in database queries by basically blocking that information from unauthorized eyes, has been widely touted as a major security feature for databases.

But when investigating the new feature, Litchfield discovered that data redaction can actually be abused by attackers to launch bigger attacks against the database. What Litchfield calls a "cool feature" by Oracle can't really protect sensitive database information after all.

Litchfield -- a security researcher with Datacom TSS as well as an avid shark diver who swears most sharks are safe to dive with -- will present his findings at the upcoming Black Hat USA conference in August.

In tomorrow's episode of Dark Reading Radio, I will host Litchfield, who will share with us insights into the holes he found in Oracle data redaction and just what that means to locking down your database. He may even share a shark tale or two as well.

So register now and join us tomorrow at 1:00 p.m. EDT, for "Hacked: Oracle Database Security." Have questions for our guest? Share them in the Comments section below, or bring them along to the show tomorrow. We will be taking questions from the live audience, and Litchfield will join us in a live text chat following the broadcast.

Kelly Jackson Higgins is the Executive Editor of Dark Reading. She is an award-winning veteran technology and business journalist with more than two decades of experience in reporting and editing for various publications, including Network Computing, Secure Enterprise ... View Full Bio
Comment  | 
Print  | 
More Insights
Comments
Threaded  |  Newest First  |  Oldest First
Marilyn Cohodas
50%
50%
Marilyn Cohodas,
User Rank: Strategist
7/1/2014 | 3:50:48 PM
Sounds like another good show..
Unfortunately I'm not going to be able to make the broadcast. Glad that I can tune in after the fact to find out more about the holes in Oracle data redaction .. 
Kelly Jackson Higgins
50%
50%
Kelly Jackson Higgins,
User Rank: Strategist
7/2/2014 | 10:04:04 AM
Re: Sounds like another good show..
What's neat about this is that Litchfield was impressed by Oracle's adding this feature to protect sensitive information in the database. He likes the concept, but found some major weaknesses in it that would allow someone to bypass it.
COVID-19: Latest Security News & Commentary
Dark Reading Staff 9/21/2020
Hacking Yourself: Marie Moe and Pacemaker Security
Gary McGraw Ph.D., Co-founder Berryville Institute of Machine Learning,  9/21/2020
Startup Aims to Map and Track All the IT and Security Things
Kelly Jackson Higgins, Executive Editor at Dark Reading,  9/22/2020
Register for Dark Reading Newsletters
White Papers
Video
Cartoon
Current Issue
Special Report: Computing's New Normal
This special report examines how IT security organizations have adapted to the "new normal" of computing and what the long-term effects will be. Read it and get a unique set of perspectives on issues ranging from new threats & vulnerabilities as a result of remote working to how enterprise security strategy will be affected long term.
Flash Poll
How IT Security Organizations are Attacking the Cybersecurity Problem
How IT Security Organizations are Attacking the Cybersecurity Problem
The COVID-19 pandemic turned the world -- and enterprise computing -- on end. Here's a look at how cybersecurity teams are retrenching their defense strategies, rebuilding their teams, and selecting new technologies to stop the oncoming rise of online attacks.
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2020-25596
PUBLISHED: 2020-09-23
An issue was discovered in Xen through 4.14.x. x86 PV guest kernels can experience denial of service via SYSENTER. The SYSENTER instruction leaves various state sanitization activities to software. One of Xen's sanitization paths injects a #GP fault, and incorrectly delivers it twice to the guest. T...
CVE-2020-25597
PUBLISHED: 2020-09-23
An issue was discovered in Xen through 4.14.x. There is mishandling of the constraint that once-valid event channels may not turn invalid. Logic in the handling of event channel operations in Xen assumes that an event channel, once valid, will not become invalid over the life time of a guest. Howeve...
CVE-2020-25598
PUBLISHED: 2020-09-23
An issue was discovered in Xen 4.14.x. There is a missing unlock in the XENMEM_acquire_resource error path. The RCU (Read, Copy, Update) mechanism is a synchronisation primitive. A buggy error path in the XENMEM_acquire_resource exits without releasing an RCU reference, which is conceptually similar...
CVE-2020-25599
PUBLISHED: 2020-09-23
An issue was discovered in Xen through 4.14.x. There are evtchn_reset() race conditions. Uses of EVTCHNOP_reset (potentially by a guest on itself) or XEN_DOMCTL_soft_reset (by itself covered by XSA-77) can lead to the violation of various internal assumptions. This may lead to out of bounds memory a...
CVE-2020-25600
PUBLISHED: 2020-09-23
An issue was discovered in Xen through 4.14.x. Out of bounds event channels are available to 32-bit x86 domains. The so called 2-level event channel model imposes different limits on the number of usable event channels for 32-bit x86 domains vs 64-bit or Arm (either bitness) ones. 32-bit x86 domains...