GITBOOK-3934: change request with no subject merged in GitBook
This commit is contained in:
parent
419be89fe7
commit
127ea84169
|
@ -143,6 +143,7 @@
|
|||
* [macOS Architecture](macos-hardening/macos-security-and-privilege-escalation/mac-os-architecture/README.md)
|
||||
* [macOS Bundles](macos-hardening/macos-security-and-privilege-escalation/mac-os-architecture/macos-bundles.md)
|
||||
* [macOS IPC](macos-hardening/macos-security-and-privilege-escalation/mac-os-architecture/macos-ipc.md)
|
||||
* [macOS Function Hooking](macos-hardening/macos-security-and-privilege-escalation/mac-os-architecture/macos-function-hooking.md)
|
||||
* [Universal binaries & Mach-O Format](macos-hardening/macos-security-and-privilege-escalation/mac-os-architecture/universal-binaries-and-mach-o-format.md)
|
||||
* [macOS MDM](macos-hardening/macos-security-and-privilege-escalation/macos-mdm/README.md)
|
||||
* [Enrolling Devices in Other Organisations](macos-hardening/macos-security-and-privilege-escalation/macos-mdm/enrolling-devices-in-other-organisations.md)
|
||||
|
|
|
@ -0,0 +1,75 @@
|
|||
# macOS Function Hooking
|
||||
|
||||
<details>
|
||||
|
||||
<summary><a href="https://cloud.hacktricks.xyz/pentesting-cloud/pentesting-cloud-methodology"><strong>☁️ HackTricks Cloud ☁️</strong></a> -<a href="https://twitter.com/hacktricks_live"><strong>🐦 Twitter 🐦</strong></a> - <a href="https://www.twitch.tv/hacktricks_live/schedule"><strong>🎙️ Twitch 🎙️</strong></a> - <a href="https://www.youtube.com/@hacktricks_LIVE"><strong>🎥 Youtube 🎥</strong></a></summary>
|
||||
|
||||
* Do you work in a **cybersecurity company**? Do you want to see your **company advertised in HackTricks**? or do you want to have access to the **latest version of the PEASS or download HackTricks in PDF**? Check the [**SUBSCRIPTION PLANS**](https://github.com/sponsors/carlospolop)!
|
||||
* Discover [**The PEASS Family**](https://opensea.io/collection/the-peass-family), our collection of exclusive [**NFTs**](https://opensea.io/collection/the-peass-family)
|
||||
* Get the [**official PEASS & HackTricks swag**](https://peass.creator-spring.com)
|
||||
* **Join the** [**💬**](https://emojipedia.org/speech-balloon/) [**Discord group**](https://discord.gg/hRep4RUj7f) or the [**telegram group**](https://t.me/peass) or **follow** me on **Twitter** [**🐦**](https://github.com/carlospolop/hacktricks/tree/7af18b62b3bdc423e11444677a6a73d4043511e9/\[https:/emojipedia.org/bird/README.md)[**@carlospolopm**](https://twitter.com/hacktricks\_live)**.**
|
||||
* **Share your hacking tricks by submitting PRs to the** [**hacktricks repo**](https://github.com/carlospolop/hacktricks) **and** [**hacktricks-cloud repo**](https://github.com/carlospolop/hacktricks-cloud).
|
||||
|
||||
</details>
|
||||
|
||||
## Function Interposing
|
||||
|
||||
Create a **dylib** with an **`__interpose`** section (or a section flagged with **`S_INTERPOSING`**) containing tuples of **function pointers** that refer to the **original** and the **replacement** functions.
|
||||
|
||||
Then, **inject** the dylib with **`DYLD_INSERT_LIBRARIES`** (the interposing needs occur before the main app lodas). Obviously this restriction has the **restrictions** applied to the use of DYLD\_INSERT\_LIBRARIES. 
|
||||
|
||||
### Interpose printf
|
||||
|
||||
{% tabs %}
|
||||
{% tab title="interpose.c" %}
|
||||
{% code title="interpose.c" %}
|
||||
```c
|
||||
// gcc -dynamiclib interpose.c -o interpose.dylib
|
||||
#include <stdio.h>
|
||||
#include <stdarg.h>
|
||||
|
||||
int my_printf(const char *format, ...) {
|
||||
//va_list args;
|
||||
//va_start(args, format);
|
||||
//int ret = vprintf(format, args);
|
||||
//va_end(args);
|
||||
|
||||
int ret = printf("[+] Hello from interpose\n");
|
||||
return ret;
|
||||
}
|
||||
|
||||
__attribute__((used)) static struct { const void *replacement; const void *replacee; } _interpose_printf
|
||||
__attribute__ ((section ("__DATA,__interpose"))) = { (const void *)(unsigned long)&my_printf, (const void *)(unsigned long)&printf };
|
||||
```
|
||||
{% endcode %}
|
||||
{% endtab %}
|
||||
|
||||
{% tab title="hello.c" %}
|
||||
```c
|
||||
//gcc hello.c -o hello
|
||||
#include <stdio.h>
|
||||
|
||||
int main() {
|
||||
printf("Hello, World!\n");
|
||||
return 0;
|
||||
}
|
||||
```
|
||||
{% endtab %}
|
||||
{% endtabs %}
|
||||
|
||||
```bash
|
||||
DYLD_INSERT_LIBRARIES=./interpose.dylib ./hello
|
||||
[+] Hello from interpose
|
||||
```
|
||||
|
||||
<details>
|
||||
|
||||
<summary><a href="https://cloud.hacktricks.xyz/pentesting-cloud/pentesting-cloud-methodology"><strong>☁️ HackTricks Cloud ☁️</strong></a> -<a href="https://twitter.com/hacktricks_live"><strong>🐦 Twitter 🐦</strong></a> - <a href="https://www.twitch.tv/hacktricks_live/schedule"><strong>🎙️ Twitch 🎙️</strong></a> - <a href="https://www.youtube.com/@hacktricks_LIVE"><strong>🎥 Youtube 🎥</strong></a></summary>
|
||||
|
||||
* Do you work in a **cybersecurity company**? Do you want to see your **company advertised in HackTricks**? or do you want to have access to the **latest version of the PEASS or download HackTricks in PDF**? Check the [**SUBSCRIPTION PLANS**](https://github.com/sponsors/carlospolop)!
|
||||
* Discover [**The PEASS Family**](https://opensea.io/collection/the-peass-family), our collection of exclusive [**NFTs**](https://opensea.io/collection/the-peass-family)
|
||||
* Get the [**official PEASS & HackTricks swag**](https://peass.creator-spring.com)
|
||||
* **Join the** [**💬**](https://emojipedia.org/speech-balloon/) [**Discord group**](https://discord.gg/hRep4RUj7f) or the [**telegram group**](https://t.me/peass) or **follow** me on **Twitter** [**🐦**](https://github.com/carlospolop/hacktricks/tree/7af18b62b3bdc423e11444677a6a73d4043511e9/\[https:/emojipedia.org/bird/README.md)[**@carlospolopm**](https://twitter.com/hacktricks\_live)**.**
|
||||
* **Share your hacking tricks by submitting PRs to the** [**hacktricks repo**](https://github.com/carlospolop/hacktricks) **and** [**hacktricks-cloud repo**](https://github.com/carlospolop/hacktricks-cloud).
|
||||
|
||||
</details>
|
Loading…
Reference in New Issue