
Closed
Posted
Paid on delivery
Memory corruption and binary reversing tasks are coming in hot. Let’s warm up (and recover from any trauma induced by the midterm exam) with what we call in the biz data-only memory corruption attacks. These may not be as fancy as what’s coming later, but they are in fact very damaging, as they often remain unhindered by the modern defenses designed to block more complex attacks. Here are your learning goals: ● Meet memory corruption. ● Ease into binary reversing. ● Get familiar with gdb. ● Overcome the fear of binary exploitation. Your Task Find the program sun installed under /usr/local/bin/. This program serves to... Well, actually, we have no clue what it does. We found it sitting on the server one day. But let’s not get distracted by that trivial inconvenience. sun is owned by the group prog10, and its setgid bit is enabled. So your task should be familiar: Find a way to exploit the program and execute /usr/local/bin/win withtheeffectivegroupIDofprog10togetyoursolutiontoken. Collect this one token, complete the challenge. There is of course no source code for this mysterious program, but we harassed a poor intern to reverse it for us, and reconstructed a viable C program. This is available under /usr/local/course/src/. Unlessyouarealeetreverseryourself,youMUSTreaditto solve the challenge. But don’t blindly trust the code. The intern sucked, and many parts of the program are either inaccurate, or entirely missing. When in doubt, reverse yourself.
Project ID: 38741869
12 proposals
Remote project
Active 2 yrs ago
Set your budget and timeframe
Get paid for your work
Outline your proposal
It's free to sign up and bid on jobs
12 freelancers are bidding on average $37 USD for this job

Hello abhimanyus89, I am rajat23091969, an experienced developer with a diverse skill set that aligns perfectly with the requirements of your project. With extensive expertise in C Programming, Java, Cryptography, and C++ Programming, I am well-equipped to tackle the memory corruption and binary reversing tasks at hand. Having worked on a wide range of projects involving reverse engineering, algorithm development, and software architecture, I am confident in my ability to decipher the mysterious program sun and exploit it to execute /usr/local/bin/win with the effective group ID of prog10. I am excited about the opportunity to collaborate on this intriguing challenge and believe that my skills and experience make me an ideal candidate for this project. I look forward to discussing
$21 USD in 3 days
4.8
4.8

Hi, there! I have successfully completed similar memory corruption and binary reversing tasks before. Looking forward to tackling your proposal! I am confident in providing effective solutions for the challenges presented. I will wait for your contact.
$10 USD in 3 days
1.0
1.0

Hi i have 3+ years of experience in c,c++ and embedded field let's connect for further discussion thank you
$30 USD in 1 day
1.0
1.0

Hey there! I noticed your memory corruption and binary reversing project, and I’d love to dive into it with you. With experience in binary exploitation and memory manipulation, I’m set up to tackle both the data-only memory corruption attack aspect and binary reversing you mentioned. Let's have a chat! Daniel
$25 USD in 1 day
0.6
0.6

Hi, I went through your project description and it seems like I'm a great fit for this job. I'm an expert which have many years of experience on C Programming, Java, Algorithm, Cryptography, C++ Programming Lets connect in chat so that We discuss further. Regards Saad Ali K.
$20 USD in 7 days
0.0
0.0

Hello Abhimanyu S. ⚡⚡⚡I HAVE READ ALL YOUR REQUIREMENTS VERY CAREFULLY AND UNDERSTOOD WHAT YOU WANT.⚡⚡⚡ As a top developer with extensive experience in PHP, Website Design, CSS, WordPress and HTML, I can provide the precise results you're seeking for. For over 8 years, I have developed numerous projects focusing on enhanced user experience and performance optimization. ✔ Expertise and Experience: 8+ years of hands-on experience in C++ Programming, Java, Cryptography, Algorithm and C Programming. ✔ Efficiency: Streamlined development processes to save time and reduce costs. ✔ Scalability: Solutions designed to grow seamlessly with your business. ✔ Reliability: Robust implementations to minimize downtime and ensure optimal performance. ✔ Customization: Solutions tailored to your specific needs and objectives. ✔ Ongoing Support: 6+ weeks of support and maintenance to ensure your project runs smoothly. I will share my past work in the chatbox. I am eager to contribute my expertise to your project. Looking forward to your reply. Best regards,
$15 USD in 6 days
0.0
0.0

I am excited about the opportunity to work on your project-C Programming, C++ Programming, Java, Algorithm and Cryptography. With over 6 years of experience as a Full Stack Developer, I specialize in creating dynamic and responsive web and mobile applications. My expertise ensures that I can deliver robust solutions tailored to your needs. I understand the importance of balancing quality and budget, and I am committed to providing high-quality work at a reasonable price. I’m open to discussing your budget and finding a solution that works for both of us. Let’s connect to discuss how I can help bring your project to life! Looking forward to your response!
$25 USD in 5 days
0.0
0.0

Hello, I'm extremely excited because I recently had a very similar experience. I'm confident that I can complete your task perfectly as soon as possible in a short amount of time, and I'm sure you'll be pleased with the results. Let me quickly introduce myself.
$18 USD in 1 day
0.0
0.0

Hi, I have 10 years exp for C++ language. If you need to handle this task, please contact me. I will handle for you as you expect and more
$12 USD in 7 days
0.0
0.0

Hi, How are you? bidding for project Memory Corruption & Binary Reversing Tasks -- 4 I can work with your project skills python, react js ,react native, swift, objective-c, java, Kotlin, Android, flutter, bot making, ionic, Cordova, capacitor, spring boot, mySql, Sql, Django, telegram bot, discord bot, unity, vue.js, laravel, c, c++, c# and RESTful API. Upon reading your description file I am sure we can definitely pull it off several years of professional working experience in relevant fields. once provided with detailed file of your requirements. I have good experience in need technical support in android and ios application including python,react native, swift, objective-c, java, Kotlin, Android, FCM, flutter, ionic, Cordova, capacitor and RESTful API. It would be great to have you on board and start it as quickly as possible. Lets have a detailed chat about this project. Waiting from your end now. Thanks Saqib Kafeel.
$220 USD in 3 days
2.2
2.2

Hi, I'm not sure if this is a challenge, a course or whatever but I like reverse engineering and I'm experienced in this kind of things and then I'm interested in this proposal
$30 USD in 7 days
0.0
0.0

Jamaica Plain, United States
Payment method verified
Member since Oct 30, 2024
$25-50 USD / hour
₹1500-12500 INR
$250-750 USD
₹1500-12500 INR
min $50 USD / hour
$100-300 USD
$30-250 USD
$100-125 USD
€8-30 EUR
₹1500-12500 INR
$10-30 USD
$30-250 USD
$25-50 USD / hour
$8-15 USD / hour
₹12500-37500 INR
$30-250 USD
₹12500-37500 INR
$250-750 USD
€30-250 EUR
₹500000-1000000 INR