CISO University of Oslo, security, hacking, reversing, electronics, SDR

Norway
Joined August 2010
Espen Grøndahl retweeted
Okay, since the news is already out: an RCE vulnerability in PHP core, CVSS 10.0. Further details are scheduled for release on October 20. Only PHP 8 will receive patches.
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Espen Grøndahl retweeted
OpenBSD 8.0 is out now! See what's new: openbsd.org/80.html
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Espen Grøndahl retweeted
The 2026 FIRST TC: Cold Incident Response (13–15 Oct, Oslo) is seeking sponsors to support lunches, refreshments, and the community dinner for ~400 cybersecurity practitioners. No sponsor booths. No paid talks. Just community. 📩 [email protected] coldincidentresponse.no/
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‼️🚨 BREAKING: Another researcher skipped coordinated disclosure entirely and dropped a critical 1-click GitHub token theft in public because he doesn't want to deal with MSRC. In his own words: "I really don't want to deal with MSRC on VSCode bugs." The bug: just clicking a link can hand an attacker a GitHub token that reads AND writes to all your repos, including private ones. It lives in github[.]dev, GitHub's browser-based VSCode editor, which passes the browser an OAuth token that isn't scoped to a single repo. That token can touch everything you can. Researcher Ammar Askar found that VSCode's sandboxed "webviews" leak keyboard events to the main editor. A malicious repo opened via one link can simulate keystrokes, install a local extension that skips VSCode's publisher-trust check, and exfiltrate your token. He published a working proof-of-concept. He says when he reports github[.]dev bugs, GitHub tells him they're out of scope and to go report to MSRC, and a prior VSCode bug he reported was silently fixed with no credit. One commenter summed up the mood: "MSRC has turned into Feedback Hub."
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Espen Grøndahl retweeted
Google Threat Intelligence Group is dropping our latest AI Threat Tracker report today, which covers several threats we are watching through a variety of means. The report includes some details of the first 0day exploit we've found developed with AI. 1/x cloud.google.com/blog/topics…
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Microsoft Edge loads all your saved passwords into memory in cleartext — even when you’re not using them.
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Espen Grøndahl retweeted
Windows defender has been compromised. right now there is a public unpatched exploit that gives any app on your windows PC full system admin access. no password. no popup. nothing your antivirus doesnt stop it. your antivirus IS the exploit. windows defender is the attack vector ransomware gangs can use this to encrypt your entire machine and steal every saved password, browser session, and discord token you have. fully patched windows 11. real time protection on thread
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Espen Grøndahl retweeted
Intel SGX has fallen! Its most important key is in our hands: we extracted the Global Wrapping Key from an instance of the Intel Gemini Lake platform
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Espen Grøndahl retweeted
Introducing Claude Code Security, now in limited research preview. It scans codebases for vulnerabilities and suggests targeted software patches for human review, allowing teams to find and fix issues that traditional tools often miss. Learn more: anthropic.com/news/claude-co…
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Espen Grøndahl retweeted
Update from the Notepad++ author, Don Ho:
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Espen Grøndahl retweeted
'The incident began from June 2025. Multiple independaent security researchers have assessed that the threat acotor is likely a Chinese state-sponsored group, which would explain the highly selective targeting obseved during the campaign.' #NotepadPlusPlus #Notepad #Compromised #Cyber #Incident
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Excited to disclose my research allowing RCE in Kubernetes It allows running arbitrary commands in EVERY pod in a cluster using a commonly granted "read only" RBAC permission. This is not logged and and allows for trivial Pod breakout. Unfortunately, this will NOT be patched.
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Einstein's General Relativity turns 110 today. On November 25, 1915, Albert Einstein presented the final form of his gravitational field equations to the Prussian Academy of Sciences in Berlin. It became one of the most important scientific breakthroughs of the 20th century.
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Espen Grøndahl retweeted
⚠️⚠️ CVE-2025-24813 Apache Tomcat as Actively Exploited with 9.8 CVSS 🎯6.7m+ Results are found on the en.fofa.info nearly year. 🔗FOFA Link:en.fofa.info/result?qbase64=… FOFA Query:app="APACHE-Tomcat" 🔖Refer: securityonline.info/cisa-fla… #OSINT #FOFA #CyberSecurity #Vulnerability
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Espen Grøndahl retweeted
My BSides NoVA talk from Saturday was called “10 Ways to Improve Entra ID Security Quickly”. I focused on the areas that tend to be missed in Entra ID. Talk slides are now posted. Download the slides: adsecurity.org/?p=4799
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