Jianjun Chen

Associate Professor at Tsinghua University; Previously at UC Berkeley and University of Chicago; Research on network security.

[Jianjun Chen @whucjj]

@haoscs haha, thanks!

[Jianjun Chen @whucjj]

Very happy😀. Thanks to my advisor Vern Paxson, co-author Jian Jiang, and many others.

[Jianjun Chen @whucjj]

Thanks @BlackHatEvents for organizing this wonderful event. Thanks everyone for watching our #BHUSA talk. Here are the presentation materials: slides (https://t.co/0n37F6ItQN), white paper (https://t.co/wfQaMye0TP), a new tool (https://t.co/LUmgKeihzq).

[Jianjun Chen @whucjj]

Spear #Phishing is real. Our #BHUSA'20 talk will present an array of new techniques to spoof email sender address. Check out abstract of our talk "You Have No Idea Who Sent that Email: 18 Attacks on Email Sender Authentication" https://t.co/N7gdME0VZ4 @BlackHatEvents

[Jianjun Chen @whucjj]

The IETF has published a new draft standard for preventing the CDN forwarding loop attacks discovered by us. https://t.co/rOc6gmi2oO

[Jianjun Chen @whucjj]

How to hack intranet from outside by exploiting browser bugs? Welcome to my presentation at 9:00 am, August 17 in track 1. #usesec18 #day3 ("We Still Don’t Have Secure Cross-Domain Requests: an Empirical Study of CORS", https://t.co/3nLNItKWgu). @USENIXSecurity

[Jianjun Chen @whucjj]

Very happy for making some contributions to improve CORS security. https://t.co/qA9dagQ2Lg

[Luke Jahnke @lukejahnke]

... and now it has been fixed. CVE-2018-8014 - https://t.co/3emA1pKwv7 https://t.co/KHNbDrQcOC

[Jianjun Chen @whucjj]

Thanks, hope it can be helpful for you~ https://t.co/1Xlr6GF96b

[ACM CCS 2025 @acm_ccs]

#papertweet for #ccs16: "Host of Troubles: Multiple Host Ambiguities in HTTP Implementations" https://t.co/rDvEFlyFLh

[Jianjun Chen @whucjj]

More details can be found in the paper. https://t.co/64mkyZ0PN9. https://t.co/RTWonkGMJt

[James Kettle @albinowax]

Awesome to see solid further research into HTTP host header attacks! https://t.co/5Bffr8fsPl Time to investigate burp scanner integration :)