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BOF
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Start:
** BOF
- https://www.atmarkit.co.jp/ait/articles/1409/22/news010...
- ROP(Return-oriented Programming)
- Use-After-Free
- https://www.ipa.go.jp/security/awareness/vendor/program...
- Buffer Over Flow
#br
- ASLR
- カナリア(stack canary) SSP (Stack Smashing Protector)
-- -fstack-protector
-- -fno-stack-protector
-- -fstack-protector-all
- ASLR、DEP、FullRELRO有効、SSP、PIE
- DEP【Data Execution Prevention】
- PIC, PIE
#br
PIC (Position Independent Code)
ASLR (Address Space Layout Randomization)
sysctl -w kernel.randomize_va_space=0
sysctl -w kernel.randomize_va_space=2
KASLR : カーネルの位置をランダム化したもの
- -fno-stack-protector -z execstack
End:
** BOF
- https://www.atmarkit.co.jp/ait/articles/1409/22/news010...
- ROP(Return-oriented Programming)
- Use-After-Free
- https://www.ipa.go.jp/security/awareness/vendor/program...
- Buffer Over Flow
#br
- ASLR
- カナリア(stack canary) SSP (Stack Smashing Protector)
-- -fstack-protector
-- -fno-stack-protector
-- -fstack-protector-all
- ASLR、DEP、FullRELRO有効、SSP、PIE
- DEP【Data Execution Prevention】
- PIC, PIE
#br
PIC (Position Independent Code)
ASLR (Address Space Layout Randomization)
sysctl -w kernel.randomize_va_space=0
sysctl -w kernel.randomize_va_space=2
KASLR : カーネルの位置をランダム化したもの
- -fno-stack-protector -z execstack
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