new file: HeapLAB+Bible.pdf

	new file:   HeapLAB/.glibc/glibc_2.23/ld-2.23.so
	new file:   HeapLAB/.glibc/glibc_2.23/ld.so.2
	new file:   HeapLAB/.glibc/glibc_2.23/libc-2.23.so
	new file:   HeapLAB/.glibc/glibc_2.23/libc.so.6
	new file:   HeapLAB/.glibc/glibc_2.23/libio/genops.c
	new file:   HeapLAB/.glibc/glibc_2.23/malloc/malloc.c
	new file:   HeapLAB/.glibc/glibc_2.23_unsafe-unlink/ld-2.23.so
	new file:   HeapLAB/.glibc/glibc_2.23_unsafe-unlink/ld.so.2
	new file:   HeapLAB/.glibc/glibc_2.23_unsafe-unlink/libc-2.23.so
	new file:   HeapLAB/.glibc/glibc_2.23_unsafe-unlink/libc.so.6
	new file:   HeapLAB/.glibc/glibc_2.23_unsafe-unlink/libio/genops.c
	new file:   HeapLAB/.glibc/glibc_2.23_unsafe-unlink/malloc/malloc.c
	new file:   HeapLAB/.glibc/glibc_2.24/ld-2.24.so
	new file:   HeapLAB/.glibc/glibc_2.24/ld.so.2
	new file:   HeapLAB/.glibc/glibc_2.24/libc-2.24.so
	new file:   HeapLAB/.glibc/glibc_2.24/libc.so.6
	new file:   HeapLAB/.glibc/glibc_2.24/malloc/malloc.c
	new file:   HeapLAB/.glibc/glibc_2.25/ld-2.25.so
	new file:   HeapLAB/.glibc/glibc_2.25/ld.so.2
	new file:   HeapLAB/.glibc/glibc_2.25/libc-2.25.so
	new file:   HeapLAB/.glibc/glibc_2.25/libc.so.6
	new file:   HeapLAB/.glibc/glibc_2.25/malloc/malloc.c
	new file:   HeapLAB/.glibc/glibc_2.26/ld-2.26.so
	new file:   HeapLAB/.glibc/glibc_2.26/ld.so.2
	new file:   HeapLAB/.glibc/glibc_2.26/libc-2.26.so
	new file:   HeapLAB/.glibc/glibc_2.26/libc.so.6
	new file:   HeapLAB/.glibc/glibc_2.26/malloc/malloc.c
	new file:   HeapLAB/.glibc/glibc_2.26_no-tcache/ld-2.26.so
	new file:   HeapLAB/.glibc/glibc_2.26_no-tcache/ld.so.2
	new file:   HeapLAB/.glibc/glibc_2.26_no-tcache/libc-2.26.so
	new file:   HeapLAB/.glibc/glibc_2.26_no-tcache/libc.so.6
	new file:   HeapLAB/.glibc/glibc_2.26_no-tcache/malloc/malloc.c
	new file:   HeapLAB/.glibc/glibc_2.27/ld-2.27.so
	new file:   HeapLAB/.glibc/glibc_2.27/ld.so.2
	new file:   HeapLAB/.glibc/glibc_2.27/libc-2.27.so
	new file:   HeapLAB/.glibc/glibc_2.27/libc.so.6
	new file:   HeapLAB/.glibc/glibc_2.27/malloc/malloc.c
	new file:   HeapLAB/.glibc/glibc_2.27_no-tcache/ld-2.27.so
	new file:   HeapLAB/.glibc/glibc_2.27_no-tcache/ld.so.2
	new file:   HeapLAB/.glibc/glibc_2.27_no-tcache/libc-2.27.so
	new file:   HeapLAB/.glibc/glibc_2.27_no-tcache/libc.so.6
	new file:   HeapLAB/.glibc/glibc_2.27_no-tcache/malloc/malloc.c
	new file:   HeapLAB/.glibc/glibc_2.27_ubuntu1804/.debug/ld-2.27.so
	new file:   HeapLAB/.glibc/glibc_2.27_ubuntu1804/.debug/libc-2.27.so
	new file:   HeapLAB/.glibc/glibc_2.27_ubuntu1804/ld-2.27.so
	new file:   HeapLAB/.glibc/glibc_2.27_ubuntu1804/ld.so.2
	new file:   HeapLAB/.glibc/glibc_2.27_ubuntu1804/libc-2.27.so
	new file:   HeapLAB/.glibc/glibc_2.27_ubuntu1804/libc.so.6
	new file:   HeapLAB/.glibc/glibc_2.28/ld-2.28.so
	new file:   HeapLAB/.glibc/glibc_2.28/ld.so.2
	new file:   HeapLAB/.glibc/glibc_2.28/libc-2.28.so
	new file:   HeapLAB/.glibc/glibc_2.28/libc.so.6
	new file:   HeapLAB/.glibc/glibc_2.28/malloc/malloc.c
	new file:   HeapLAB/.glibc/glibc_2.28_no-tcache/ld-2.28.so
	new file:   HeapLAB/.glibc/glibc_2.28_no-tcache/ld.so.2
	new file:   HeapLAB/.glibc/glibc_2.28_no-tcache/libc-2.28.so
	new file:   HeapLAB/.glibc/glibc_2.28_no-tcache/libc.so.6
	new file:   HeapLAB/.glibc/glibc_2.28_no-tcache/malloc/malloc.c
	new file:   HeapLAB/.glibc/glibc_2.29/ld-2.29.so
	new file:   HeapLAB/.glibc/glibc_2.29/ld.so.2
	new file:   HeapLAB/.glibc/glibc_2.29/libc-2.29.so
	new file:   HeapLAB/.glibc/glibc_2.29/libc.so.6
	new file:   HeapLAB/.glibc/glibc_2.29/malloc/malloc.c
	new file:   HeapLAB/.glibc/glibc_2.29_no-tcache/ld-2.29.so
	new file:   HeapLAB/.glibc/glibc_2.29_no-tcache/ld.so.2
	new file:   HeapLAB/.glibc/glibc_2.29_no-tcache/libc-2.29.so
	new file:   HeapLAB/.glibc/glibc_2.29_no-tcache/libc.so.6
	new file:   HeapLAB/.glibc/glibc_2.29_no-tcache/malloc/malloc.c
	new file:   HeapLAB/.glibc/glibc_2.29_ubuntu1904/.debug/ld-2.29.so
	new file:   HeapLAB/.glibc/glibc_2.29_ubuntu1904/.debug/libc-2.29.so
	new file:   HeapLAB/.glibc/glibc_2.29_ubuntu1904/ld-2.29.so
	new file:   HeapLAB/.glibc/glibc_2.29_ubuntu1904/ld.so.2
	new file:   HeapLAB/.glibc/glibc_2.29_ubuntu1904/libc-2.29.so
	new file:   HeapLAB/.glibc/glibc_2.29_ubuntu1904/libc.so.6
	new file:   HeapLAB/.glibc/glibc_2.30/ld-2.30.so
	new file:   HeapLAB/.glibc/glibc_2.30/ld.so.2
	new file:   HeapLAB/.glibc/glibc_2.30/libc-2.30.so
	new file:   HeapLAB/.glibc/glibc_2.30/libc.so.6
	new file:   HeapLAB/.glibc/glibc_2.30/malloc/malloc.c
	new file:   HeapLAB/.glibc/glibc_2.30_no-tcache/ld-2.30.so
	new file:   HeapLAB/.glibc/glibc_2.30_no-tcache/ld.so.2
	new file:   HeapLAB/.glibc/glibc_2.30_no-tcache/libc-2.30.so
	new file:   HeapLAB/.glibc/glibc_2.30_no-tcache/libc.so.6
	new file:   HeapLAB/.glibc/glibc_2.30_no-tcache/malloc/malloc.c
	new file:   HeapLAB/.glibc/glibc_2.31/ld-2.31.so
	new file:   HeapLAB/.glibc/glibc_2.31/ld.so.2
	new file:   HeapLAB/.glibc/glibc_2.31/libc-2.31.so
	new file:   HeapLAB/.glibc/glibc_2.31/libc.so.6
	new file:   HeapLAB/.glibc/glibc_2.31/malloc/malloc.c
	new file:   HeapLAB/.glibc/glibc_2.31_no-tcache/ld-2.31.so
	new file:   HeapLAB/.glibc/glibc_2.31_no-tcache/ld.so.2
	new file:   HeapLAB/.glibc/glibc_2.31_no-tcache/libc-2.31.so
	new file:   HeapLAB/.glibc/glibc_2.31_no-tcache/libc.so.6
	new file:   HeapLAB/.glibc/glibc_2.31_no-tcache/malloc/malloc.c
	new file:   HeapLAB/.src/demo_fastbins.c
	new file:   HeapLAB/.src/demo_top_chunk.c
	new file:   HeapLAB/.src/demo_unsortedbin.c
	new file:   HeapLAB/HeapLab - GLIBC Heap Exploitation.pdf
	new file:   HeapLAB/challenge-fastbin_dup/.gdb_history
	new file:   HeapLAB/challenge-fastbin_dup/bruh.py
	new file:   HeapLAB/challenge-fastbin_dup/fastbin_dup_2
	new file:   HeapLAB/challenge-fastbin_dup/pwntools_template.py
	new file:   HeapLAB/challenge-one_byte/one_byte
	new file:   HeapLAB/challenge-one_byte/pwntools_template.py
	new file:   HeapLAB/fastbin_dup/demo
	new file:   HeapLAB/fastbin_dup/fastbin_dup
	new file:   HeapLAB/fastbin_dup/pwntools_template.py
	new file:   HeapLAB/house_of_force/demo
	new file:   HeapLAB/house_of_force/house_of_force
	new file:   HeapLAB/house_of_force/pwntools_template.py
	new file:   HeapLAB/house_of_orange/house_of_orange
	new file:   HeapLAB/house_of_orange/pwntools_template.py
	new file:   HeapLAB/malloc_testbed/.links/ld.so.2
	new file:   HeapLAB/malloc_testbed/.links/libc.so.6
	new file:   HeapLAB/malloc_testbed/change_glibc_version.py
	new file:   HeapLAB/malloc_testbed/malloc_testbed
	new file:   HeapLAB/malloc_testbed/pwntools_template.py
	new file:   HeapLAB/safe_unlink/pwntools_template.py
	new file:   HeapLAB/safe_unlink/safe_unlink
	new file:   HeapLAB/unsafe_unlink/demo
	new file:   HeapLAB/unsafe_unlink/pwntools_template.py
	new file:   HeapLAB/unsafe_unlink/unsafe_unlink
	new file:   original.gz

2 files changed, 80 insertions, 0 deletions

diff --git a/HeapLAB/challenge-one_byte/one_byte b/HeapLAB/challenge-one_byte/one_byte
new file mode 100755
index 0000000..696030a
--- /dev/null
+++ b/HeapLAB/challenge-one_byte/one_byte
diff --git a/HeapLAB/challenge-one_byte/pwntools_template.py b/HeapLAB/challenge-one_byte/pwntools_template.py
new file mode 100755
index 0000000..d49da15
--- /dev/null
+++ b/HeapLAB/challenge-one_byte/pwntools_template.py
@@ -0,0 +1,80 @@
+#!/usr/bin/python3
+from pwn import *
+
+elf = context.binary = ELF("one_byte")
+libc = elf.libc
+
+gs = '''
+continue
+'''
+def start():
+    if args.GDB:
+        return gdb.debug(elf.path, gdbscript=gs)
+    else:
+        return process(elf.path)
+
+# Index of allocated chunks.
+index = 0
+
+# Select the "malloc" option.
+# Returns chunk index.
+def malloc():
+    global index
+    io.sendthen("> ", "1")
+    index += 1
+    return index - 1
+
+# Select the "free" option; send index.
+def free(index):
+    io.send("2")
+    io.sendafter("index: ", f"{index}")
+    io.recvuntil("> ")
+
+# Select the "edit" option; send index & data.
+def edit(index, data):
+    io.send("3")
+    io.sendafter("index: ", f"{index}")
+    io.sendafter("data: ", data)
+    io.recvuntil("> ")
+
+# Select the "read" option; read 0x58 bytes.
+def read(index):
+    io.send("4")
+    io.sendafter("index: ", f"{index}")
+    r = io.recv(0x58)
+    io.recvuntil("> ")
+    return r
+
+io = start()
+io.recvuntil("> ")
+io.timeout = 0.1
+
+# =============================================================================
+
+# =-=-=- EXAMPLE -=-=-=
+
+# Request a chunk.
+chunk_A = malloc()
+
+# Edit chunk A.
+edit(chunk_A, b"Y"*32)
+
+# Read data from chunk A.
+data = read(chunk_A)
+log.info(f"Read from chunk_A:\n{data}")
+
+# Free chunk A.
+free(chunk_A)
+
+# Because you haven't leaked a libc address yet, libc.sym.<symbol name>
+# will only print a symbol's offset, rather than its actual address.
+log.info(f"offset of puts() from start of GLIBC shared object: 0x{libc.sym.puts:02x}")
+
+# Once you've leaked an address, e.g. the printf() function, use:
+# libc.sym.address = <leaked printf address> - libc.sym.printf
+# to correctly set your libc base address to its runtime address. Now future calls
+# to libc.sym will use the symbol's actual address rather than its offset.
+
+# =============================================================================
+
+io.interactive()