Collaborate Disseminate
I admit that I don’t fully understand how buffer overflow attacks works, but as far I understand, the attacker send an input that is longer than the section of memory that is supposed to temporarily store it so it overruns other parts of t… Continue reading Can buffer overflow attacks become impossible?
Imagine there is a secret key, which is used for symmetric encryption. I.e.: anyone with this key can encrypt / decrypt a message.
A service allows users to store a message under a certain filepath, which can also be retrieved with that fi… Continue reading Is it possible to perform input validation in a system with "true" end-to-end encryption?
Is there any tools to scan and/or sanitize .stl files?
I maintain a security-critical GitHub repo. A contributor recently created a PR that includes changes to .md, .scad, and .stl files.
The changes to the markdown and OpenSCAD files can … Continue reading How to scan and sanitize STL files?
I’m working on a function that returns a HTTP response from https://pypi.org/simple/ when Python’s pip installer requests it for a package. When pushing my code onto GitHub, the CodeQL checks warn of the risk of server side request forgery… Continue reading How to resolve server-side request forgery (SSRF) warning for a HTTP request that takes Python package names as input?
What are the main kinds of hacks that can be used when passing user input from the command line, and what are the key techniques to prevent against them (like to prevent against browser XSS attacks, you typically escape the HTML before ren… Continue reading Primary techniques to prevent against hacks when passing user input to CLI arguments?
Reading how Spotify was normalizing unicode inconsistently, and now I’m questioning if I am overlooking any issue on accepting non-normalized usernames.
From what I can tell, lowercase was first used on unix because users had to log in fro… Continue reading Is there any benefit to normalize unicode/utf-8 names that I am overlooking?
On https://ais.osym.gov.tr/ I saw an XSS vulnerable input. I tried some payloads without malicious intent which only contained alerts or console logs. The code img \x00src=x onerror=alert(1) worked.
Now the problem is whenever I try to re… Continue reading Accidentally locked an XSS vulnerable input
I have a WordPress plugin that helps create an organization chart/tree and then generates a URL where the chart is available to be viewed by the public.
The plugin dashboard looks like this
the plugin uses window alerts to input from the u… Continue reading What are vulnerabilities of saving user input directly in wordpress plugin?
I have understood from reading in "Hit the expert" in Hebrew Wikipedia that a Cipher is a code which includes a key in the input.
Also:
A code affects the word, and a cipher affects the individual letters. Cipher — A cipher is a… Continue reading What is the difference between a code and a cipher (Cypher)? [closed]
Is unwanted characters removal enough to prevent most attacks (Python) ? Obviously the code should have more sophisticated rules (ex.remove more than one consecutive white spaces after a new line), but my understanding is that only charact… Continue reading Input sanitization