Download e-book for kindle: A Bug Hunter's Diary: A Guided Tour Through the Wilds of by Tobias Klein

By Tobias Klein

ISBN-10: 1593273851

ISBN-13: 9781593273859

Probably easy insects could have drastic results, permitting attackers to compromise platforms, increase neighborhood privileges, and in a different way wreak havoc on a system.A trojan horse Hunter's Diary follows safety professional Tobias Klein as he tracks down and exploits insects in many of the world's hottest software program, like Apple's iOS, the VLC media participant, internet browsers, or even the Mac OS X kernel. during this different account, you'll see how the builders answerable for those flaws patched the bugs—or didn't reply in any respect. As you stick with Klein on his trip, you'll achieve deep technical wisdom and perception into how hackers procedure tough difficulties and adventure the real joys (and frustrations) of malicious program hunting.

Along the best way you'll find out how to:
• Use field-tested thoughts to discover insects, like deciding upon and tracing person enter information and opposite engineering
• take advantage of vulnerabilities like NULL pointer dereferences, buffer overflows, and kind conversion flaws
• strengthen facts of proposal code that verifies the safety flaw
• record insects to proprietors or 3rd celebration brokers

A trojan horse Hunter's Diary is jam-packed with real-world examples of weak code and the customized courses used to discover and attempt insects. even if you're searching insects for enjoyable, for revenue, or to make the area a more secure position, you'll examine worthy new talents through having a look over the shoulder of a pro trojan horse hunter in action.

"This is without doubt one of the best infosec books to come back out within the final a number of years."
Dino Dai Zovi, details safeguard Professional

"Give a guy an make the most and also you make him a hacker for an afternoon; train a guy to use insects and also you make him a hacker for a lifetime."
Felix 'FX' Lindner

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Probably basic insects may have drastic results, permitting attackers to compromise platforms, amplify neighborhood privileges, and differently wreak havoc on a method. A computer virus Hunter's Diary follows defense specialist Tobias Klein as he tracks down and exploits insects in a number of the world's most well liked software program, like Apple's iOS, the VLC media participant, internet browsers, or even the Mac OS X kernel.

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Additional info for A Bug Hunter's Diary: A Guided Tour Through the Wilds of Software Security

Example text

Immunity Debugger is a great Windows debugger based on OllyDbg. It comes with a nice GUI and a lot of extra features and plug-ins to support bug hunting and exploit development. shtml. 4. ashx. 5. de/books/bhd/. 6. net/ publications/security-ecosystem/. 7. org/. git;a=commitdiff;h=26d92b87bba99b5ea2e17b7eaa39c462d65e9133. 8. git;a=commitdiff;h=d859e6b9537af2d7326276f70de2 5a840f554dc3. 9. com/en-en/ sysinternals/bb896653/. 10. aspx. 11. LookingGlass is a handy tool to scan a directory structure or the running processes to report which binaries do not make use of ASLR and NX.

Jg movq movq movq movb call movq movl testq je movq +0xf0 0x28(%r12),%rax 0x28(%rbx),%rbx %r12,%rdi $0xe,0x19(%rax) +0x5712cfa %rax,%r15 $0xc,%eax %r15,%r15 +0x9d 0x8(%r13),%r14 The crash was caused by the instruction movq 0x8(%r13),%r14 at address ip_sioctl_tunparam+0x5c. The instruction tried to reference the value pointed to by register r13. As the debugger output of the ::msgbuf command shows, r13 had the value 0 at the time of the crash.

Figure 3-6 illustrates the relevant parts of this layout. (4) 0x00 0x0000000041414141 qi->qi_putp (start of qi struct) 0x08 0x0000000000000010 ipif->ipif_ill 0x10 0x0000000000000000 ill->ill_ptr (start of ill struct) 0x18 0x0000000000000000 ill->ill_rq 0x20 0x0000000000000028 ill->ill_wq 0x28 0x0000000000000000 qp->q_qinfo (start of qp struct) 0x30 0x0000000000000000 qp->first 0x38 0x0000000000000000 qp->last 0x40 0x0000000000000028 qp->next … 0xa0 0x00000000000007d0 Figure 3-6: Data layout of the zero page 44 Chapter 3 qp->syncq (1) (2) (3) The left-hand side of Figure 3-6 shows the offsets into the zero page.

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A Bug Hunter's Diary: A Guided Tour Through the Wilds of Software Security by Tobias Klein


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