标签：amp 并且 lookup any pen single 超时 log byte
本地process()、远程remote()。对于remote函数可以接url并且指定端口。
下面给出了PwnTools中的主要IO函数。这个比较容易跟zio搞混，记住zio是read、write，pwn是recv、send就可以了。
send(data) : 发送数据 sendline(data) : 发送一行数据，相当于在末尾加\n recv(numb=4096, timeout=default) : 给出接收字节数,timeout指定超时 recvuntil(delims, drop=False) : 接收到delims的pattern （以下可以看作until的特例） recvline(keepends=True) : 接收到\n，keepends指定保留\n recvall() : 接收到EOF recvrepeat(timeout=default) : 接收到EOF或timeout interactive() : 与shell交互
ELF模块用于获取ELF文件的信息，首先使用ELF()获取这个文件的句柄，然后使用这个句柄调用函数，和IO模块很相似。
下面演示了：获取基地址、获取函数地址（基于符号）、获取函数got地址、获取函数plt地址
>>> e = ELF(‘/bin/cat‘) >>> print hex(e.address) # 文件装载的基地址 0x400000 >>> print hex(e.symbols[‘write‘]) # 函数地址 0x401680 >>> print hex(e.got[‘write‘]) # GOT表的地址 0x60b070 >>> print hex(e.plt[‘write‘]) # PLT的地址 0x401680
主要是对整数进行打包，就是转换成二进制的形式，比如转换成地址。p32、p64是打包，u32、u64是解包。
DynELF是leak信息的神器。前提条件是要提供一个输入地址，输出此地址最少1byte数的函数。官网给出的说明是：Given a function which can leak data at an arbitrary address, any symbol in any loaded library can be resolved.
很叼啊，有木有。以下是官方例程
# Assume a process or remote connection
p = process(‘./pwnme‘)
# Declare a function that takes a single address, and
# leaks at least one byte at that address.
def leak(address):
data = p.read(address, 4)
log.debug("%#x => %s" % (address, (data or ‘‘).encode(‘hex‘)))
return data
# For the sake of this example, let‘s say that we
# have any of these pointers. One is a pointer into
# the target binary, the other two are pointers into libc
main = 0xfeedf4ce
libc = 0xdeadb000
system = 0xdeadbeef
# With our leaker, and a pointer into our target binary,
# we can resolve the address of anything.
#
# We do not actually need to have a copy of the target
# binary for this to work.
d = DynELF(leak, main)
assert d.lookup(None, ‘libc‘) == libc
assert d.lookup(‘system‘, ‘libc‘) == system
# However, if we *do* have a copy of the target binary,
# we can speed up some of the steps.
d = DynELF(leak, main, elf=ELF(‘./pwnme‘))
assert d.lookup(None, ‘libc‘) == libc
assert d.lookup(‘system‘, ‘libc‘) == system
# Alternately, we can resolve symbols inside another library,
# given a pointer into it.
d = DynELF(leak, libc + 0x1234)
assert d.lookup(‘system‘) == system
标签：amp 并且 lookup any pen single 超时 log byte
原文地址：http://www.cnblogs.com/liuyimin/p/7389606.html
