Brute Forcing HS256 is Possible: The Importance of Using Strong Keys in Signing JWTs
VulnerabilitiesBrute Forcing HS256 is Possible: The Importance of Using Strong Keys in Signing JWTsCracking a JWT signed with weak keys is possible via brute force attacks. Learn how Auth0 protects against such attacks and alternative JWT signing methods provided. JSON Web Tokens are an open, industry standard RFC 7519 method for representing claims securely between two parties. They can be digita
Reading privileged memory with a side-channel
We have discovered that CPU data cache timing can be abused to efficiently leak information out of mis-speculated execution, leading to (at worst) arbitrary virtual memory read vulnerabilities across local security boundaries in various contexts. Variants of this issue are known to affect many modern processors, including certain processors by Intel, AMD and ARM. For a few Intel and AMD CPU models
NetSPI SQL Injection Wiki
This wiki's mission is to be a one stop resource for fully identifying, exploiting, and escalating SQL injection vulnerabilities across various Database Management Systems (DBMS). This wiki assumes you have a basic understanding of SQL injection, please go here for an introduction if you are unfamiliar. Below is an outline of the wiki's structure, laid out in the order of a normal escalation path.
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Stealing Machine Learning Models via Prediction APIs FlorianTramèr1, Fan Zhang2,Ari Juels3,Michael Reiter4,Thomas Ristenpart3 1EPFL, 2Cornell, 3CornellTech, 4UNC http://silver.web.unc.edu Cloud Security Horizons Summit, March 2016 Goals Approach cont. Results Approach § Machine learning models may be deemed confidential due to § Sensitive training data § Commercial value § Use in security applicat
Stealing Machine Learning Models via Prediction APIs
Machine learning (ML) models may be deemed confidential due to their sensitive training data, commercial value, or use in security applications. Increasingly often, confidential ML models are being deployed with publicly accessible query interfaces. ML-as-a-service ("predictive analytics") systems are an example: Some allow users to train models on potentially sensitive data and charge others for
A bite of Python
This article was originally published on the Red Hat Customer Portal. The information may no longer be current. Being easy to pick up and progress quickly towards developing larger and more complicated applications, Python is becoming increasingly ubiquitous in computing environments. Though apparent language clarity and friendliness could lull the vigilance of software engineers and system admini
How I made LastPass give me all your passwords - Labs Detectify
Note: This issue has already been resolved and pushed to the Lastpass users. Stealing all your passwords by just visiting a webpage. Sounds too bad to be true? That’s what I thought too before I decided to check out the security of the LastPass browser extension. For those who don’t know, LastPass is one of the world’s most popular password managers. I started by noticing that the extension added
Facebook's Bug - Delete any video from Facebook
The story I came across a note New: Videos in Comments! written by Bob Baldwin who works at Facebook. This note was about Facebook launching it's new feature of commenting using videos. eg. Now, users were allowed to upload a video in comments. When I saw this note , at that time this video comment feature was already out 8 hrs ago. So, I started playing around and testing this feature to find out
1Password sends your password across the loopback interface in clear text
1Password sends your password across the loopback interface in clear textTL:DR 1Password sends your password in clear text across the loopback interface if you use the browser extensions. Note: Running Mac OSX 10.11.3, 1Password Mac Store 6.0.1, Extension Version 4.5.3.90 (Chrome) Last night i spent some time actually reviewing what was running on my system and what ports things were listening on
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