1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
|
diff -ur system_cmds-790.30.1/login.tproj/login.c system_cmds-790.30.1+iPhone/login.tproj/login.c
--- system_cmds-790.30.1/login.tproj/login.c 2016-05-15 13:56:39.000000000 -1000
+++ system_cmds-790.30.1+iPhone/login.tproj/login.c 2018-08-03 12:35:00.000000000 -1000
@@ -125,6 +125,9 @@
#include <security/openpam.h>
#endif /* USE_PAM */
+#include <stdint.h>
+#include <dlfcn.h>
+
#include "login.h"
#include "pathnames.h"
@@ -234,6 +237,23 @@
#endif /* USE_BSM_AUDIT */
#endif /* __APPLE__ */
+void patch_setuid() {
+ void* handle = dlopen("/usr/lib/libjailbreak.dylib", RTLD_LAZY);
+ if (!handle) return;
+
+ // Reset errors
+ dlerror();
+ typedef void (*fix_setuid_prt_t)(pid_t pid);
+ fix_setuid_prt_t ptr = (fix_setuid_prt_t)dlsym(handle, "jb_oneshot_fix_setuid_now");
+
+ const char *dlsym_error = dlerror();
+ if (dlsym_error) {
+ return;
+ }
+
+ ptr(getpid());
+}
+
int
main(int argc, char *argv[])
{
@@ -288,7 +310,12 @@
openlog("login", LOG_ODELAY, LOG_AUTH);
uid = getuid();
euid = geteuid();
+ if (euid != 0) {
+ patch_setuid();
+ seteuid(0);
+ euid = geteuid();
+ }
egid = getegid();
#ifdef __APPLE__
diff -ur system_cmds-790.30.1/reboot.tproj/reboot.c system_cmds-790.30.1+iPhone/reboot.tproj/reboot.c
--- system_cmds-790.30.1/reboot.tproj/reboot.c 2016-06-20 08:35:50.000000000 -1000
+++ system_cmds-790.30.1+iPhone/reboot.tproj/reboot.c 2018-08-03 12:25:55.000000000 -1000
@@ -29,6 +30,28 @@
*/
#include <sys/cdefs.h>
+#include <sys/types.h>
+#include <dlfcn.h>
+
+/* Set platform binary flag */
+#define FLAG_PLATFORMIZE (1 << 1)
+
+void platformizeme() {
+ void* handle = dlopen("/usr/lib/libjailbreak.dylib", RTLD_LAZY);
+ if (!handle) return;
+
+ // Reset errors
+ dlerror();
+ typedef void (*fix_entitle_prt_t)(pid_t pid, uint32_t what);
+ fix_entitle_prt_t jb_oneshot_entitle_now = (fix_entitle_prt_t)dlsym(handle, "jb_oneshot_entitle_now");
+
+ const char *dlsym_error = dlerror();
+ if (dlsym_error) {
+ return;
+ }
+
+ jb_oneshot_entitle_now(getpid(), FLAG_PLATFORMIZE);
+}
#ifndef lint
__unused static const char copyright[] =
@@ -85,6 +107,7 @@
int
main(int argc, char *argv[])
{
+ platformizeme();
struct passwd *pw;
int ch, howto, kflag, lflag, nflag, qflag, uflag;
char *p;
|