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Tag Archives: x86
Backdooring a Windows Binary bypassing ASLR memory protection
Hello, Today is a sunny day here in my country and I should be in the beach drinking a cold beer, but I don’t know why… I’m here at home embedding a backdoor inside a Windows binary. I’ve already wrote … Continue reading
Posted in Exploiting
Tagged antivirus, Assembly, av bypass, av evasion, backdoor, exploit-db, exploiting, hacking, OSCE, OSCE exam, shellcode, shellcoding, windows, x86
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Exploit Development – Vulnserver GTER – Limited Buffer Space – Socket Reuse
Hello everyone! After some weeks I managed to do all the known exercises of Vulnserver, also I did some of them with different methods. I reserved for the last one, the GTER exercise, that is a limited buffer space Buffer … Continue reading
Posted in Exploiting
Tagged Assembly, Boofuzz, exploit development, Fuzzing, hacking, OSCE, shellcode, vulnserver, x86
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Exploit Development – Vulnserver HTER – Hex conversion
Hello! One more Vulnserver write-up. This one is HTER function, it has some similarities with his brother LTER. LTER was converting the buffer to Unicode and HTER is going to convert it to hexadecimal. Let’s see what happens when this … Continue reading
Posted in Exploiting
Tagged Assembly, Boofuzz, exploit development, Fuzzing, hacking, OSCE, OSCE exam, shellcode, vulnserver, x86
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Exploit Development – Vulnserver LTER – Unicode conversion
Hello! One more blog post about Vulnserver, this time let’s do LTER exercise. It’s not a difficult one, but it has an important thing that we should understand when we are using Alphanumerical encoders. As always, we start the fuzzing … Continue reading
Posted in Exploiting
Tagged Assembly, Boofuzz, exploit development, Fuzzing, hacking, OSCE, OSCE exam, shellcode, vulnserver, x86
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Exploit Development – Vulnserver GMON – Egghunter
Hello everyone! This post is going to be another write-up of vulnserver. I’m going to do GMON exercise that contains basically an standard SEH based Remote Buffer Overflow vulnerability. I will try to make this post useful for anyone that … Continue reading
Posted in Exploiting
Tagged Assembly, Boofuzz, exploit development, Fuzzing, hacking, OSCE, OSCE exam, shellcode, vulnserver, x86
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CVE-2018-12897 – Exploit Development – SolarWinds DameWare Local Buffer Overflow
Hello everyone! Last week I’ve been having fun trying to create exploits for already discovered vulnerabilities. I’m currently preparing the OSCE exam, and I decided that after doing some Vulnserver exercises… I needed to start working on “more realistic” exploits. … Continue reading
Posted in Exploiting
Tagged Assembly, Boofuzz, CVE-2018-12897, DameWare, exploit development, Fuzzing, hacking, OSCE, OSCE exam, shellcode, x86
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Exploit Development – Vulnserver TRUN – Socket Reuse
Hello! This post is going to cover the exploitation of the TRUN method of Vulnserver using the socket reuse technique that I explained in the last entry of the Blog. This blog post is going to be straight forward, as … Continue reading
Posted in Exploiting
Tagged Assembly, Boofuzz, exploit development, Fuzzing, hacking, OSCE, shellcode, vulnserver, x86
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Exploit Development – Vulnserver KSTET – Egghunter 2
Hello everyone, This post is an alternative way to crack Vulnserver using KSTET command. To understand what I’m going to show in you here and how you can exploit this specific method you need to read the last post of … Continue reading
Posted in Exploiting
Tagged Assembly, Boofuzz, exploit development, Fuzzing, hacking, OSCE, OSCE exam, shellcode, vulnserver, x86
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Exploit Development – Vulnserver KSTET – Egghunter 1
Hello everyone! This is going to be the second post of the series of Vulnserver. This post will cover the exploitation of vulnserver using the KSTET function This one is a bit more difficult than TRUN, that was the one … Continue reading
Posted in Exploiting
Tagged Assembly, Boofuzz, exploit development, Fuzzing, hacking, OSCE, OSCE exam, shellcode, vulnserver, x86
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Exploit Development – Vulnserver TRUN – JMP EAX
Hello everyone, this post is the first of a series that I’m going to dedicate to Exploit Development. Right now I just finished the OSCE certification labs and I’m preparing the exam. I think that is a good idea to … Continue reading
Posted in Exploiting
Tagged Assembly, Boofuzz, exploit development, Fuzzing, hacking, OSCE, OSCE exam, shellcode, vulnserver, x86
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