All Writeups
Comprehensive collection of CTF challenges, solutions, and insights.
Filter by category:
Filter by tag:
All Tags
Raptor-Weekly (14)
ECHELON (12)
ctf (3)
retrospective (3)
overview (3)
DEADROP (37)
WHAMazon! (23)
pcap (13)
base64 (10)
network (10)
Club-Ouroboros (1)
acrostic (1)
aes (2)
aes-cbc (3)
aes-gcm (1)
alg-none (1)
algorithm-confusion (1)
anti-debug (1)
api (5)
api-chaining (1)
auth-bypass (1)
authentication-bypass (1)
autopsy (1)
bash (1)
beaconing (1)
binary (1)
block-cipher (1)
brute-force (3)
bytecode (2)
c2 (3)
cbc (2)
chacha20 (1)
chain (1)
classical-cipher (1)
cloud-metadata (1)
cloudflare-tunnel (1)
command-injection (3)
config-leak (1)
constraint-solving (1)
cookie-theft (2)
core-dump (1)
covert-channel (1)
credential-hunting (1)
credential-reuse (1)
crib-drag (3)
cross-site-scripting (1)
crypto (7)
csp-bypass (1)
cube-root (1)
custom-crypto (1)
custom-isa (2)
custom-properties (1)
cyberchef (2)
darknet-services (1)
decryption (1)
default-credentials (1)
deobfuscation (2)
diffie-hellman (1)
directory-traversal (1)
discrete-log (1)
disk-image (2)
dns (2)
dns-exfiltration (1)
docker (1)
docx (1)
dsa (2)
ecdlp (1)
elf (5)
elliptic-curve (1)
email-forensics (1)
eml (1)
encoding (1)
encoding-chains (1)
encryption (1)
enumeration (1)
error-correction (1)
eval (1)
event-handler (1)
exfiltration (3)
exif (1)
feistel (1)
fetch (1)
ffuf (2)
file-recovery (1)
firmware (1)
flask (3)
foia (1)
forensics (8)
ftp (2)
full-chain (1)
ghidra (4)
github (2)
headers (1)
hex (5)
hidden-partition (1)
hmac (1)
hs256 (1)
html (1)
https (1)
iam (1)
icmp (1)
idor (2)
image-forensics (1)
img-tag (1)
implementation (1)
information-schema (1)
internal-services (1)
iv-reuse (1)
jail-escape (1)
javascript (1)
jinja2 (2)
json (1)
jwt (6)
jwt.io (1)
key-reuse (1)
kill-chain (1)
known-plaintext (3)
lateral-movement (1)
ld-preload (1)
lfi (1)
linkedin (1)
linux (4)
listener (1)
llm-security (1)
local-file-inclusion (1)
localhost (1)
loopback (1)
low-nonce (1)
lsb (2)
ltrace (1)
malware-analysis (1)
marshal (1)
memory (1)
meta (1)
multi-artifact (1)
multi-machine (1)
multi-stage (2)
network-pentest (1)
no-padding (1)
nonce-reuse (2)
none-algorithm (1)
oaep (1)
obfuscation (4)
office-formats (1)
os-shell (1)
osint (4)
otp-reuse (1)
padding (1)
padding-oracle (1)
partial-key (1)
path-traversal (2)
pcapng (2)
pdf (1)
pe (1)
php-deserialization (1)
pkcs1 (1)
pkcs1-v15 (1)
plaintext (1)
png (2)
pohlig-hellman (2)
polyglot (1)
powershell (3)
pre-master-secret (1)
private-key-recovery (2)
privesc (1)
privilege-escalation (2)
prompt-injection (1)
pyarmor (1)
pycryptodome (1)
python (7)
rc4 (1)
rce (4)
readelf (1)
recon (4)
reconnaissance (1)
reconstruction (1)
red-vs-blue (1)
reed-solomon (1)
register-machine (1)
restricted-shell (1)
rev (6)
reverse-engineering (3)
rfc822 (1)
robots.txt (1)
rot13 (1)
rs256 (1)
rsa (4)
runtime-generation (1)
scapy (1)
security-misconfiguration (1)
server-side-request-forgery (1)
session-keys (1)
session-manipulation (1)
signature (2)
signature-forgery (1)
sleuthkit (1)
small-exponent (1)
smb (1)
smooth-order (1)
smt (1)
snmp (1)
socat (1)
social-media (1)
source-code (1)
source-review (1)
sqli (3)
sqlite (1)
ssrf (4)
ssti (2)
static-analysis (2)
steganography (6)
stegsolve (1)
stored-xss (1)
stream-cipher (1)
streams (1)
string-array (1)
strings (3)
symmetric (1)
template-injection (1)
tls (2)
tls-decryption (1)
token-forgery (3)
token-manipulation (1)
traffic-analysis (1)
tshark (4)
two-time-pad (1)
udp (1)
unicode (1)
union-injection (1)
unit7 (1)
vigenere (1)
vm (2)
web (5)
whitespace (1)
windows (3)
winrm (1)
wireshark (5)
xml (1)
xobject (1)
xor (5)
xss (2)
z3 (1)
zsteg (1)
2026-05-10
Web
Easy
Raptor Weekly 2 - ECHELON Web 1 - 1.1 ; OPEN CHANNEL
Chaining HTML comment enumeration to a disallowed robots.txt entry, pivoting through an exposed staging endpoint to recover an operator username, and extracting the portal password from a JSON debug response behind a custom request header.
web
recon
ECHELON
Raptor-Weekly
2026-02-22
Web
Medium
WHAMazon! Web 4 - The Archives
Chaining prior recon from robots.txt with API endpoint fuzzing and a missing-result anomaly to discover a path traversal vulnerability in an image file server.
path-traversal
directory-traversal
lfi
local-file-inclusion
2026-02-22
Web
Easy
WHAMazon! Web 2 - Employee of the Month
Combining GitHub OSINT with API endpoint discovery to find hardcoded admin credentials left in a public seed script.
osint
source-code
default-credentials
recon
2026-02-22
Web
Easy
WHAMazon! Web 1 - The Forgotten Protocol
Leveraging a publicly accessible robots.txt to discover exposed internal API endpoints and retrieve a leaked maintenance key.
recon
robots.txt
security-misconfiguration
api