Magic-Mirror/radare2
1
0
Fork 0
mirror of https://github.com/radareorg/radare2.git synced 2025-01-27 08:12:44 +00:00
Code Issues Actions 2 Packages Projects Releases Wiki Activity

Fix shellcode path customization (#16384) ##egg

Browse Source
This commit is contained in:
Frédéric Tobias Christ 2020-04-09 00:44:36 +02:00 committed by GitHub
parent 011a49c6c7
commit 3563cc33cb
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 20 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
libr/egg/p/egg_exec.c
View File

@ -96,6 +96,26 @@ static RBuffer *build (REgg *egg) {
break;
case 64:
sc = x86_64_linux_binsh;
if (shell && *shell) {
int len = strlen (shell);
if (len > sizeof (st64) - 1) {
*shell = 0;
eprintf ("Unsupported CMD length\n");
break;
}
st64 b = 0;
memcpy (&b, shell, strlen (shell));
b = -b;
shell = realloc (shell, sizeof (st64) + 1);
if (!shell) {
break;
}
r_str_ncpy (shell, &b, sizeof (st64) + 1);
cd = 4;
r_buf_set_bytes (buf, sc, strlen ((const char *)sc));
r_buf_write_at (buf, cd, (const ut8 *)shell, sizeof (st64));
sc = 0;
}
break;
default:
eprintf ("Unsupported arch %d bits\n", egg->bits);