Linux Exploits & Mitigation: Linux Exploit Architecture
Ubuntu 20.04
| Expert
- 14 videos | 56m 8s
- Includes Assessment
- Earns a Badge
Vulnerabilities vary by architecture and family of processor. Recognizing the processor implementations and the differences that lead to an exploit is essential. In this course, you'll explore different classes of vulnerabilities based on the computing environment. You'll learn about the architectural differences and system implementations that lead to race conditions, shellcode and out-of-order execution vulnerabilities. You'll explore mitigations and protections to prevent stack smashing, use-after-free, and integer vulnerabilities. Next, you'll examine contemporary exploits such as Spectre and Meltdown and mitigations provided by Write XOR Execute (W^X). Finally, you'll investigate protections to prevent privileged escalation and exploiting processes and tasks.
WHAT YOU WILL LEARN
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Discover the key concepts covered in this course
Describe race conditions, their potential for vulnerabilities, and approaches to avoiding race conditions
Disable compiler protections to construct and execute shellcode in c
Describe out-of-order execution and related processor concepts and vulnerabilities
Describe common weaknesses and errors made when working with integers and how to prevent them
Explore compiler warnings that are vital to security and program stability
Explore how stack smashing vulnerabilities occur and how they are mitigated -
Describe use-after-free vulnerabilities, how they occur, and typical target examples to keep in mind
Describe the impact and mitigations in place to avoid and mitigate the spectre and meltdown vulnerabilities
Describe the write xor execute (w^x) feature and its impact on memory security
Various processor and operating system considerations that need to be taken into account when developing mitigations to vulnerabilities and exploits
Targets for privilege escalation exploits and common privilege control mechanisms
Targets for exploiting processes and tasks of a running linux system
Summarize the key concepts covered in this course
IN THIS COURSE
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1m 21s
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4m 23s
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3. Executing Shellcode5m 28s
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4. Out-of-order Execution4m 47s
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5. Integer Vulnerabilities and Prevention6m 43s
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6. Compiler Warnings for Security and Stability5m 46s
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7. Stack Smashing Mitigations4m 29s
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8. Use-after-free Consequences4m 40s
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9. Spectre and Meltdown Vulnerabilities and Mitigation3m 47s
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10. Write XOR Execute (W^X)3m 25s
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11. Considerations and Mitigations to Vulnerabilities and Exploits3m 21s
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12. Privilege Escalation Targets3m 55s
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13. Processes and Tasks Exploits3m 14s
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14. Course Summary49s
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