bug-bounty490
google398
microsoft329
xss293
facebook288
rce199
exploit191
apple187
malware173
cve127
account-takeover113
bragging-post101
csrf86
privilege-escalation85
phishing81
browser80
supply-chain67
writeup66
dos66
stored-xss64
react64
authentication-bypass62
reflected-xss57
cloudflare56
node55
reverse-engineering53
ssrf51
aws51
docker50
input-validation48
access-control47
cross-site-scripting46
oauth46
smart-contract45
web345
ethereum43
defi42
sql-injection42
lfi41
web-security40
info-disclosure40
cloud39
web-application39
race-condition38
pentest37
ctf36
idor35
burp-suite35
vulnerability-disclosure34
html-injection33
0
8/10
A detailed writeup of a multi-stage attack chain exploiting WAF bypass via DNS enumeration to discover origin server IP, leveraging LFI to bypass Cloudflare, then escalating to SSRF by bypassing Nginx web cache (using query string manipulation), and finally extracting AWS credentials from instance metadata. The attacker discovered that Nginx cache rules didn't account for query parameters, allowing cache bypass via appending '?' to metadata API calls.
waf-bypass
cloudflare-bypass
lfi
ssrf
aws-credentials
web-cache-bypass
nginx-cache
instance-metadata
dns-enumeration
origin-ip-disclosure
privilege-escalation
multi-stage-attack
Avinash Jain
logicbomb
Cloudflare
AWS
Nginx
CVE-2019-XXXX (instance metadata exploitation)