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Infosec Wargame Notes

Tuesday, March 26, 2013. Rebooting this blog a bit - io.smashthestack.org. I let this blog languish for a while, along with my attempts to do more wargaming. Recently, however, a co-worker of mine tipped me off to the fact that some of the security-minded folks in the company had been going through the game at http:/ io.smashthestack.org. And wondered if I had seen it. I had not. So I've been running through it for the last day or so. Tuesday, September 6, 2011. Overthewire - vortex - level3. Tmp = *lpp;.

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Infosec Wargame Notes | byteninja.blogspot.com Reviews
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Tuesday, March 26, 2013. Rebooting this blog a bit - io.smashthestack.org. I let this blog languish for a while, along with my attempts to do more wargaming. Recently, however, a co-worker of mine tipped me off to the fact that some of the security-minded folks in the company had been going through the game at http:/ io.smashthestack.org. And wondered if I had seen it. I had not. So I've been running through it for the last day or so. Tuesday, September 6, 2011. Overthewire - vortex - level3. Tmp = *lpp;.
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Infosec Wargame Notes | byteninja.blogspot.com Reviews

https://byteninja.blogspot.com

Tuesday, March 26, 2013. Rebooting this blog a bit - io.smashthestack.org. I let this blog languish for a while, along with my attempts to do more wargaming. Recently, however, a co-worker of mine tipped me off to the fact that some of the security-minded folks in the company had been going through the game at http:/ io.smashthestack.org. And wondered if I had seen it. I had not. So I've been running through it for the last day or so. Tuesday, September 6, 2011. Overthewire - vortex - level3. Tmp = *lpp;.

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byteninja.blogspot.com byteninja.blogspot.com
1

Infosec Wargame Notes: overthewire.org - Vortex - Level1

http://byteninja.blogspot.com/2011/09/overthewireorg-vortex-level1.html

Sunday, September 4, 2011. Overthewire.org - Vortex - Level1. Http:/ www.overthewire.org/wargames/vortex/level1.shtml. The first step is to ssh into vortex.labs.overthewire.org using the username and password we retrieved in level0. The source for level1 is provided (you can get it from http:/ www.overthewire.org/wargames/vortex/level1.c). A quick look at the code tells us that:. We can control the input via STDIN. If our input contains a n, it will print out the contents of buf. A few other observations:.

2

Infosec Wargame Notes: Rebooting this blog a bit - io.smashthestack.org

http://byteninja.blogspot.com/2013/03/rebooting-this-blog-bit.html

Tuesday, March 26, 2013. Rebooting this blog a bit - io.smashthestack.org. I let this blog languish for a while, along with my attempts to do more wargaming. Recently, however, a co-worker of mine tipped me off to the fact that some of the security-minded folks in the company had been going through the game at http:/ io.smashthestack.org. And wondered if I had seen it. I had not. So I've been running through it for the last day or so. Subscribe to: Post Comments (Atom). View my complete profile.

3

Infosec Wargame Notes: overthewire.org- Vortex - Level2

http://byteninja.blogspot.com/2011/09/overthewireorg-vortex-level2.html

Sunday, September 4, 2011. Overthewire.org- Vortex - Level2. Http:/ www.overthewire.org/wargames/vortex/level2.shtml. We start by logging in using the username vortex2 and the password we got from the last solution. The source is again found on the link above. Int main(int argc, char * argv). Char *args[] = { "/bin/tar", "cf", "/tmp/ownership.$ .tar", argv[1], argv[2], argv[3] };. Execv(args[0], args);. First, what do we control? Int execv(const char *path, char *const argv[]);. Whats going on here?

4

Infosec Wargame Notes: Overthewire - vortex - level3

http://byteninja.blogspot.com/2011/09/overthewire-vortex-level3.html

Tuesday, September 6, 2011. Overthewire - vortex - level3. Http:/ www.overthewire.org/wargames/vortex/level3.shtml. The source for this one is:. 0xbadc0ded.org Challenge #02 (2003-07-08). Joel Eriksson je@0xbadc0ded.org. Unsigned long val = 31337;. Unsigned long *lp = &val;. Int main(int argc, char * argv). Unsigned long * lpp = &lp, *tmp;. Strcpy(buf, argv[1]);. If ( (unsigned long) lpp and 0xffff0000)! Tmp = *lpp;. Lpp = (unsigned long) &buf;. Lpp = tmp;. This is where it gets a bit tricky. After w...

5

Infosec Wargame Notes: What's going on here?

http://byteninja.blogspot.com/2011/09/whats-going-on-here.html

Friday, September 2, 2011. What's going on here? I figured, since I was going through various "wargames", that I should likely keep some notes in a publicly accessible format. Subscribe to: Post Comments (Atom). Overthewire - vortex - level3. Overthewire.org- Vortex - Level2. Overthewire.org - Vortex - Level1. Overthewire.org - Vortex - Level0. Whats going on here? View my complete profile. Awesome Inc. theme. Powered by Blogger.

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Infosec Wargame Notes

Tuesday, March 26, 2013. Rebooting this blog a bit - io.smashthestack.org. I let this blog languish for a while, along with my attempts to do more wargaming. Recently, however, a co-worker of mine tipped me off to the fact that some of the security-minded folks in the company had been going through the game at http:/ io.smashthestack.org. And wondered if I had seen it. I had not. So I've been running through it for the last day or so. Tuesday, September 6, 2011. Overthewire - vortex - level3. Tmp = *lpp;.

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