Differences
This shows you the differences between two versions of the page.
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isc:labs:06 [2023/11/14 21:32] alexandru.ghita2611 [Exercises] |
isc:labs:06 [2024/04/09 20:48] (current) alexandru.mircea98 [Reading and modifying memory] |
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| ===== Setup ===== | ===== Setup ===== | ||
| - | * Open a lab VM instance on [[https://cloud.grid.pub.ro|OpenStack]], image: **ISC 2023 rev 1**, flavor: **m1.medium**. | + | * Open a lab VM instance on [[https://cloud.grid.pub.ro|OpenStack]], image: **ISC 2023 rev 2**, flavor: **m1.medium**. |
| * Install the 32-bit **libc** and **gcc-multilib** packages: | * Install the 32-bit **libc** and **gcc-multilib** packages: | ||
| Line 21: | Line 21: | ||
| <code> | <code> | ||
| - | |||
| git clone https://github.com/pwndbg/pwndbg | git clone https://github.com/pwndbg/pwndbg | ||
| cd pwndbg | cd pwndbg | ||
| ./setup.sh | ./setup.sh | ||
| - | |||
| </code> | </code> | ||
| Line 31: | Line 29: | ||
| <code> | <code> | ||
| - | |||
| ➜ gdb | ➜ gdb | ||
| GNU gdb (Ubuntu 12.1-0ubuntu1~22.04) 12.1 | GNU gdb (Ubuntu 12.1-0ubuntu1~22.04) 12.1 | ||
| ... | ... | ||
| pwndbg> | pwndbg> | ||
| - | |||
| </code> | </code> | ||
| Line 311: | Line 307: | ||
| <code> | <code> | ||
| - | pwndbg> x/10ww $esp | + | pwndbg> x/10wx $esp |
| 0xffffd850: 0xffffd890 0xf7fbe66c 0xf7fbeb20 0x00796568 | 0xffffd850: 0xffffd890 0xf7fbe66c 0xf7fbeb20 0x00796568 | ||
| 0xffffd860: 0xffffd880 0xf7fa9000 0xf7ffd020 0xf7da0519 | 0xffffd860: 0xffffd880 0xf7fa9000 0xf7ffd020 0xf7da0519 | ||
