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Erlend Oftedal

@webtonull.bsky.social

1.6K followers 164 following 14 posts

Security researcher at Crosspoint Labs. AppSec. Tweets are my own and do not express the opinion of my employer. OWASP. retire.js

Posts Replies Media

Erlend Oftedal @webtonull.bsky.social · 06/12/2025

The call for papers for NDC Security ends tomorrow. Come do your talk in Oslo: ndcsecurity.com/call-for-pap...

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Erlend Oftedal @webtonull.bsky.social · 10/02/2025

Reminder that the Call for Presentations for Sikkerhetsfestivalen (The Security Festival) is open. OWASP Oslo is hosting an AppSec track. Scroll down the page for English version: sikkerhetsfestivalen.no/alle-nyheter...

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Erlend Oftedal @webtonull.bsky.social · 06/01/2025

The CFP for the developer conference NDC Oslo closes today. Security talks of course also very welcome. ndcoslo.com/call-for-pap...

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Reposted by Erlend Oftedal

Luke Jahnke @nastystereo.com · 10/12/2024

My latest blog post is live! Check your Ruby on Rails applications for the use of params[:_json] nastystereo.com/security/rai...

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Reposted by Erlend Oftedal

Dominique Righetto @righettod.eu · 06/12/2024

📡 OWASP Secure Headers Project: The "Response Headers" section has been updated with a series of very interesting blog posts about the "Cross-Origin-Embedder-Policy", "Cross-Origin-Opener-Policy" and "Cross-Origin-Resource-Policy" headers. #appsec #appsecurity #oshp 📖 owasp.org/www-project-...

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Erlend Oftedal @webtonull.bsky.social · 19/11/2024

Great read on bypassing upload filters: blog.sicuranext.com/breaking-dow...

blog.sicuranext.com

Breaking Down Multipart Parsers: File upload validation bypass

TL;DR: Basically, all multipart/form-data parsers fail to fully comply with the RFC, and when it comes to validating filenames or content uploaded by users, there are always numerous ways to bypass va...

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Erlend Oftedal @webtonull.bsky.social · 18/11/2024

Does anybody know why Microsoft is blocking the string ".@" in passwords in Azure AD B2C custom policy examples? It's not that they are blocking the individual characters, but that exact combination.

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Erlend Oftedal @webtonull.bsky.social · 13/09/2024

The CFP for NDC Security in Oslo, Norway is about to run out! Submit your talk today! ndc-security.com/call-for-pap...

ndc-security.com

Call for Papers - NDC Security 2025 | Security Conference for Software Developers

NDC Security 2025 is a 4-Day Event for Software Developers with a focus on Security. 20-23 January 2025 - Radisson Blu Scandinavia Hotel.

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Erlend Oftedal @webtonull.bsky.social · 19/10/2023

Oh well...

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Erlend Oftedal @webtonull.bsky.social · 13/09/2023

For people with more than one slack of varying importance, this grouping of the slacks is not a good design choice. I don't care if the least important slack has unreads. Now I have to click or hover to see which one it is.

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