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Le journal d'un reverser

Le journal d'un reverser. Vendredi 3 juillet 2015. No one expect command execution! Unix is a beautiful world where your shell gives you the power of launching any command you like. But sometimes, command can be used to launch another commands, and that's sometimes unexpected. For example, here is how you can launch arbitrary command from tar:. Little known fact: tar can launch arbitrary commands. sudo tar anyone? 8212; Mitsurugi Heishiro (@0xmitsurugi) June 16, 2015. Use a side effect of another command.

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Le journal d'un reverser. Vendredi 3 juillet 2015. No one expect command execution! Unix is a beautiful world where your shell gives you the power of launching any command you like. But sometimes, command can be used to launch another commands, and that's sometimes unexpected. For example, here is how you can launch arbitrary command from tar:. Little known fact: tar can launch arbitrary commands. sudo tar anyone? 8212; Mitsurugi Heishiro (@0xmitsurugi) June 16, 2015. Use a side effect of another command.

<META> KEYWORDS

1 pictwitter.com/bjemmeynd5

2 bin/bash

3 echo remember it

4 mitsurugi@mitsu /tmp$

5 1/ tcpdump

6 the name's 0xmitsurugi

7 remember it

8 c6 packets captured

9 2/ tar

10 3/ zip

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pictwitter.com/bjemmeynd5,bin/bash,echo remember it,mitsurugi@mitsu /tmp$,1/ tcpdump,the name's 0xmitsurugi,remember it,c6 packets captured,2/ tar,3/ zip,runmesh,5/ man,git p help,export path=/tmp $path,export home=,bash,publié par,mitsurugi,blogthis,tada

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Le journal d'un reverser | 0x90909090.blogspot.com Reviews

https://0x90909090.blogspot.com

Le journal d'un reverser. Vendredi 3 juillet 2015. No one expect command execution! Unix is a beautiful world where your shell gives you the power of launching any command you like. But sometimes, command can be used to launch another commands, and that's sometimes unexpected. For example, here is how you can launch arbitrary command from tar:. Little known fact: tar can launch arbitrary commands. sudo tar anyone? 8212; Mitsurugi Heishiro (@0xmitsurugi) June 16, 2015. Use a side effect of another command.

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0x90909090.blogspot.com

1

Le journal d'un reverser: octobre 2013

http://www.0x90909090.blogspot.com/2013_10_01_archive.html

Le journal d'un reverser. Dimanche 13 octobre 2013. Puisqu'il est possible d'ajouter du trailing à un fichier ELF sans qu'il ne se passe rien, je me demande comment faire pour mettre du code dans ce trailing et pointer dessus en modifiant l'entrypoint. Ca devrait être simple, mais je trouve pas vraiment de manière de faire. Ce dont j'ai besoin:. Savoir comment le fichier du disque se retrouve en mémoire. Savoir comment ajouter le trailing du fichier dans la mémoire. Readelf -e hello grep program. 80482e7...

2

Le journal d'un reverser: décembre 2013

http://www.0x90909090.blogspot.com/2013_12_01_archive.html

Le journal d'un reverser. Mardi 10 décembre 2013. Un autre trick anti-gdb. Gdb ouvre des files descriptor lorsqu'il est démarré. Il devient donc très simple de détecter gdb depuis un binaire:. Mitsurugi@mitsu: /gdb$ cat close3.c. If (close(3)= 0) {. Printf("Debugger detected, Bye n");. Printf("Je suis dans le main n");. Mitsurugi@mitsu: /gdb$ gdb -n -q ./close3. Reading symbols from /home/mitsurugi/gdb/close3.done. Starting program: /home/mitsurugi/gdb/./close3. Debugger detected, Bye. If (close(3)= 0) {.

3

Le journal d'un reverser: Le gourmet Solitaire

http://www.0x90909090.blogspot.com/2014/06/le-gourmet-solitaire.html

Le journal d'un reverser. Dimanche 1 juin 2014. Un samouraï, un rônin, un guerrier taciturne marche, solitaire. Le ciel est bas, un vent froid fait voler la poussière dans le crépuscule. A manger, Tavernier! Tout de suite." répond le tenancier, apeuré par le ton énergique, tout en enfilant ses soques de bois. Puis, se retournant vers le service:. Irasshaïmashi, bienvenue seigneur! Pas besoin de thé! Comme s'il lisait dans son coeur, le samouraï lance une main hâlée aux doigts velus et prend d'autorité le...

4

Le journal d'un reverser: Let's have (not) fun with afl

http://www.0x90909090.blogspot.com/2015/01/lets-have-not-fun-with-afl.html

Le journal d'un reverser. Mardi 20 janvier 2015. Let's have (not) fun with afl. And that's a part two for an extreme exploitation of my previous bug found with afl. It was a crash in cabextract. And it's a double fail. This crash is just a null pointer dereference. There is a lot of documentation in internet for it, and in that case, that's just not interesting at all. In order to be exploitable, you have to map an executable page at offset 0 and trigger the crash. This bug is known and corrected!

5

Le journal d'un reverser: Let's go fishing with fake sstic challenge

http://www.0x90909090.blogspot.com/2015/04/lets-go-fiching-with-fake-sstic.html

Le journal d'un reverser. Jeudi 2 avril 2015. Let's go fishing with fake sstic challenge. Yesterday, as I was idling on the interwebs, I noticed a challenge on twitter:. The URL is http:/ static.sstic.org/challenge2015/chlg-2015. Yesterday was the 1st april, fool's day. I didn't expected much of that, but clicked on the link anyway:. We noticed immediately the Salted. So, if we want to break by bruteforce this encryption, we have to guess the encryption scheme and. We have a file of 3000144 bytes. 16...

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0x90909090.blogspot.com

Le journal d'un reverser

Le journal d'un reverser. Vendredi 3 juillet 2015. No one expect command execution! Unix is a beautiful world where your shell gives you the power of launching any command you like. But sometimes, command can be used to launch another commands, and that's sometimes unexpected. For example, here is how you can launch arbitrary command from tar:. Little known fact: tar can launch arbitrary commands. sudo tar anyone? 8212; Mitsurugi Heishiro (@0xmitsurugi) June 16, 2015. Use a side effect of another command.

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3DS CTF] [MISC 400 – WAT] Write up. December 24, 2016. Scavenging an old 318br repo, we found a program missing some line of code. Even without this line, we would like to know the result of. Specific instruction: Put the flag on the format 3DS{} and submit. Vasculhando um repositorio antigo do 318br, nos encontramos um programa faltando uma parte. Mesmo faltando uma parte, nos gostariamos que voce nos dissesse o resultado de sua execucao. Solved by 19 Teams. December 24, 2016. Solved by 29 Teams. 8211; ...