0day.today - Biggest Exploit Database in the World.
- We use one main domain: http://0day.today
- Most of the materials is completely FREE
- If you want to purchase the exploit / get V.I.P. access or pay for any other service,
you need to buy or earn
GOLD
Administration of this site uses the official contacts. Beware of impostors!
We DO NOT use Telegram or any messengers / social networks!Please, beware of scammers!
- Read the [ agreement ]
- Read the [ Submit ] rules
- Visit the [ faq ] page
- [ Register ] profile
- Get [ GOLD ]
- If you want to [ sell ]
- If you want to [ buy ]
- If you lost [ Account ]
- Any questions [ admin@0day.today ]
- Authorisation page
- Registration page
- Restore account page
- FAQ page
- Contacts page
- Publishing rules
- Agreement page
Mail:
Facebook:
Twitter:
Telegram:
We DO NOT use Telegram or any messengers / social networks!
Contact us
You can contact us by:
Mail:
Facebook:
Twitter:
Telegram:
We DO NOT use Telegram or any messengers / social networks!
Microsoft Windows - MsiAdvertiseProduct Arbitrary File Read Exploit
[The bug is in “MsiAdvertiseProduct” Calling this function will result in a file copy by the installer service. This will copy an arbitrary file that we can control with the first parameter into c:\windows\installer … a check gets done while impersonating, but using junctions there is still a TOCTOU .. meaning we can get it to copy any file as SYSTEM, and the destination file will always be readable. This results an in arbitrary file read vulnerability. To reproduce: Make sure to copy both readfile.exe and “file” (found under folder PoC-Files)… and put them in the same directory. Useage: readfile.exe targetfile (where targetfile is the file to read, IE: “readfile.exe c:\users\test\desktop\desktop.ini”) Run on 2 cores or more, this should work on one core with some modifications.. since you should be able to hit the timing with oplocks too (but I'm lazy).. you should be able to see something like this if it works: https://www.youtube.com/watch?v=x4P2H64GI1o The easiest way to confirm the bug is to make two local accounts and read the desktop.ini of the other account. Even without an enumeration vector, this is still bad news, because a lot of document software, like office, will actually keep files in static locations that contain the full path and filesnames of recently opened documents.. thus by reading files like this, you can get filenames of documents created by other users.. the filesystem is a spiderweb and references to user created files can be found everywhere.. so not having an enumeration bug is not that big of a deal. Proof of Concept: https://github.com/offensive-security/exploitdb-bin-sploits/raw/master/bin-sploits/46028.zip # 0day.today [2025-01-08] #