DaST | A novel data-free model stealing method based on GAN | Machine Learning library
kandi X-RAY | DaST Summary
kandi X-RAY | DaST Summary
Abstract: Machine learning models are vulnerable to adversarial examples. For the black-box setting, current substitute attacks need pre-trained models to generate adversarial examples. However, pre-trained models are hard to obtain in real-world tasks. In this paper, we propose a data-free substitute training method (DaST) to obtain substitute models for adversarial black-box attacks without the requirement of any real data. To achieve this, DaST utilizes specially designed generative adversarial networks (GANs) to train the substitute models. In particular, we design a multi-branch architecture and label-control loss for the generative model to deal with the uneven distribution of synthetic samples. The substitute model is then trained by the synthetic samples generated by the generative model, which are labeled by the attacked model subsequently. The experiments demonstrate the substitute models produced by DaST can achieve competitive performance compared with the baseline models which are trained by the same train set with attacked models. Additionally, to evaluate the practicability of the proposed method on the real-world task, we attack an online machine learning model on the Microsoft Azure platform. The remote model misclassifies 98.35% of the adversarial examples crafted by our method. To the best of our knowledge, we are the first to train a substitute model for adversarial attacks without any real data. This project built on Pytorch 1.0+.
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Top functions reviewed by kandi - BETA
- Run test
- Shortcut for ResNet
- Test the attack
- Calculate accuracy for a given model
- Calculate the accuracy of the given model
- Splits an array into chunks
DaST Key Features
DaST Examples and Code Snippets
Community Discussions
Trending Discussions on DaST
QUESTION
In the following data set, I need to sum the amounts of each remittance and add it back as total amount in JavaScript. I understand the logic of what needs to occur, I am just unsure of the proper syntax.
I'm struggling because of the way the data is nested and the varied number of amounts uder each remittance.
I would appreciate any insite.
this is an example of what I would need for my final result--
...ANSWER
Answered 2022-Feb-26 at 19:23You should be able to do this with built in array functions:
QUESTION
I want to get video URL starting from this page: https://farsiland.com/movies/portrait-of-a-lady-far-away/ which leads to this page: https://farsiland.com/play/ . I am able to automate the direct the first page into the second page by clicking on the icon (xPath) but I can't get any of below (which shows on Chrome's Devs Tools) using Python Selenium and Chrome wabdriver.
I want this
https:\/\/serp.seocheck.one\/movies\/Simaye.Zani.Dar.Doordast.1382.VCDRip.Per.mp4
from here:var jw = {"file":"https:\/\/serp.seocheck.one\/movies\/Simaye.Zani.Dar.Doordast.1382.VCDRip.Per.mp4","file2":"https:\/\/steam.filmestoon.com\/movies\/Simaye.Zani.Dar.Doordast.1382.VCDRip.Per.mp4","image":"https:\/\/image.tmdb.org\/t\/p\/original\/qQ0bUacVseAnFMqi70rdPC3FWoz.jpg","color":"#0b7ef4","title":"Simaye Zani Dar Door Dast","sub":"https:\/\/farsiland.com\/caption.srt?","link":"https:\/\/farsiland.com","logo":"https:\/\/farsiland.com\/wp-content\/uploads\/2019\/10\/dark-logo.png","auto":"false","text":"FarsiLand Player","lposi":"top-left","flash":"https:\/\/farsiland.com\/wp-content\/themes\/newfarsiland\/assets\/jwplayer\/jwplayer.flash.swf","postid":"1198"}
orthis one https://serp.seocheck.one/movies/Simaye.Zani.Dar.Doordast.1382.VCDRip.Per.mp4 from here
Here are my webdriver options arguments:
...ANSWER
Answered 2022-Feb-05 at 20:18The video is actually inside an iframe. You'll need to navigate directly to the iframe src page before you can get to the video element's src.
Try this:
QUESTION
I'm running a DAST scanner via github actions and it has failed due to timeout because the job took longer than 6 hours. Reading through the documentation I see the limit should not be applied to self hosted runners, and there is no entry for job execution timeout in the self-hosted runner limitations. Is there a way to disable the 360 minute timeout for job execution?
...ANSWER
Answered 2021-Dec-01 at 15:48According to the Github Actions selfhosted-runner documentation found here you should be able to have processes run for up to 24 hours. And workflows for up to 72 hours.
QUESTION
I have installed Gitlab-CE on a local Ubuntu Server (18.04) and am able to successfully access it through http://192.168.xxx.xxx/
I am trying to set up a CI/CD pipeline in a repository with a sample job at this point to just test if the pipeline runs successfully. This is my .gitlab-ci.yml:
...ANSWER
Answered 2021-Jun-21 at 15:57I managed to fix my issue by changing the EXTERNAL_URL
value in my /etc/gitlab/config.toml
to http://192.168.xxx.xxx/
and then running gitlab-ctl reconfigure
and gitlab-ctl restart
. Apparently this was a misconfiguration while installing Gitlab and that's the URL that redirects the pipeline.
QUESTION
I'm struggling to understand when and when not to use compute()
in Dask dataframes. I usually write my code by adding/removing compute()
until the code works, but that's extremely error-prone. How should I use compute()
in Dask? Does it differ in Dast Distributed?
ANSWER
Answered 2021-May-23 at 14:22The core idea of delayed computations is to delay the actual calculation until the final target is known. This allows:
- increased speed of coding (e.g. as a data scientist, I don't need to wait for every transformation step to complete before designing the workflow),
- distribution of work across multiple workers,
- overcoming resource constraints of my client, e.g. if I am using a laptop with limited memory, I can run heavy computations on dask workers that are in the cloud or another machine with more resources,
- better efficiency if the final target requires only some tasks to be done (e.g. if the final calculation requires only a subset of the dataframe, then dask will load only the relevant columns/partitions).
Some of the alternatives to calling .compute
are:
.visualize()
: this helps visualize the task graph. The DAG can become hairy when there are lots of tasks, so this is useful to run on smaller subsets of the data (e.g. only loading two/three partitions of the dataframe)- using
client.submit
: this launches computations right away providing you with afuture
, an object that refers to results of a task being computed. This gives the advantages of scaling work across multiple workers, but it can be a bit more resource intensive (since dask doesn't know the full workflow, it might run computations that are not needed to achieve the final target).
With regards to distributed
, I don't think there is a difference except for where the result will be: dask.compute
will put the result in local machine, while client.compute
will keep the result on a remote worker.
QUESTION
I'm wanting to create a script which can run k apply -Rf ./service-token-auth
for each of the logical groups here. Mainly all of the graphql-* and data-service-* folders.
Is this something that would be quite easy to implement?
...ANSWER
Answered 2021-Apr-28 at 21:21you can iterate over files in bash
first make sure that it only hits the folders that you want
QUESTION
I have not, but shall DAST* security test, out of curiosity, an IoT device; Nodemcu esp8266 www server I built. It's showing a HTML page (on a mobile phone for example) that allows to control and interact with a camera module and a A/C relay. With it I can for example show images captured in the camera I even think it has some image recognition built in, and I can switch on and off a relay for electrical current to a light bulb (110/220v A/C power)
Before I start pentest I though I better start thinking of what types of exploits one would be able to find and detect? Which sinister exploits I will be able to find, or rather ought be able to find given a proper pentest exercise? (And if I do not find exploits, my approach to the pentest of the Iot might be wrong)
I ponder it might be a totally pointless exercise since the esp8266 www server (or rather its LUA programming libraries) might not have any security built into it, so basically it is "open doors" and everything with it is unsafe ?
The test report might just conclude what I can foresee be that the the "user input needs to be sanitized"?
Anyone have any idea what such pentest of a generic IoT device generally reports? Maybe it is possible to crash or reset the IoT device? Buffer overruns, XXS, call own code ?
I might use ZAP or Burpsuite or similar DAST security test tool.
- I could of course SAST test it instead, or too, but I think it will be hard to find a static code analyzer for the NodeMCU libraries and NUA scripting language easily ? I found some references here though: https://ieeexplore.ieee.org/abstract/document/8227299 but it seems to be a long read.
So if someone just have a short answer what to expect in a DAST scan/pentest , it would be much appreciated.
Stay safe and secure out there ! Zombieboy
...ANSWER
Answered 2021-Apr-08 at 01:04I do my vulnerability scanning with OpenVAS (I assume this is what you mean by pentesting?). I am not aware of any IOT focused Tools.
If your server is running on esp8266, i would imagine that there is no much room for authentication and encryption of http traffic, but correct me if i am wrong).
Vulnerability Scan results might show things like unencrypted http traffic, credentials transmitted in cleartext (if you have any credentials fields in the pages served by the web server) etc. Depending on if there is encryption, you might also see weak encryption findings.
You might get some false positives on your lua webserver reacting like other known webservers when exploits are applied. I have seen this kind of false positive specially on DoS vulnerabilities when a vulnerability scan is testing a vulnerability and the server becomes unresponsive. Depending on how invasive your vulnerability scanner is, you might get a lot of false positives for DoS on such a constrained platform.
QUESTION
ANSWER
Answered 2020-Jul-28 at 16:59ZAP is Open Source so you can look at the source code of the scan rule yourself. It is available here: https://github.com/zaproxy/zap-extensions/blob/master/addOns/ascanrules/src/main/java/org/zaproxy/zap/extension/ascanrules/BufferOverflow.java
That'll let you see exactly why it's triggering for you.
Of course it is possible that the result is a False Positive.
From my quick review it sends a giant param value (2100 chars) and checks the response for Internal Server Error and Connection: close
.
If that's how your app behaves:
- Perhaps it is vulnerable.
- Perhaps it needs some more robust error/input handling.
- Perhaps the finding is a False Positive and you filter it out going forward:
QUESTION
Hi guys I'm new to files. I have to find a specific data (KJadid.Tedad) and replace some other integer in it. here's the code I'm using :
...ANSWER
Answered 2020-Jun-17 at 14:24You open the file in the wrong mode:
"When a file is opened with the "a" or "a+" access type, all write operations occur at the end of the file. The file pointer can be repositioned using fseek or rewind, but is always moved back to the end of the file before any write operation is carried out. Thus, existing data cannot be overwritten."
Open the file in mode "r+" - Opens the file for both reading and writing. (The file must exist.)
QUESTION
We recently received result from IBM AppScan DAST and some of the result don't make much senses.
2.Medium -- Cross-Site Request Forgery
Risk(s): It may be possible to steal or manipulate customer session and cookies, which might be used to impersonate a legitimate user, allowing the hacker to view or alter user records, and to perform transactions as that user Fix: Validate the value of the "Referer" header, and use a one-time-nonce for each submitted form
The following changes were applied to the original request:
Set header to 'http://bogus.referer.ibm.com'
Reasoning:
The test result seems to indicate a vulnerability because the Test Response is identical to the Original Response, indicating that the Cross-Site Request Forgery attempt was successful, even though it included a fictive 'Referer' header.
Request/Response:
...
ANSWER
Answered 2020-May-10 at 10:41This is indeed needless in JSF. This kind of attack is in JSF only possible when there's already an open remote code execution hole such as XSS (and thus the hacker has access to among others the session cookies and can therefore copy them via the phishing site), or when the view is stateless via (because you lose the
javax.faces.ViewState
hidden input field as implicit CSRF protection for the "normal" case when there's no remote code execution hole), or when you use HTTP instead of HTTPS (because a man-in-middle attacker can then plainly see all transferred bits and extract the session cookies from them).
All you need to make sure is that the enduser's session cookies are never in some way exposed to the world. The advised fix is not at all helpful in that. It only makes it the attacker more difficult to perform a successful CSRF attack when you sooner or later accidentally introduce a remote code execution hole. But then you have really way much bigger problems than only CSRF. All these efforts advised by this tool are only useful to give the hacker slightly less time to perform a successful attack, and to give yourself slightly more time to fix the remote code execution hole.
If all you want is to "suppress" this warning, then create a Filter
which does the desired job. Here's a kickoff example, map it on /*
.
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Vulnerabilities
No vulnerabilities reported
Install DaST
You can use DaST like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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