Related Weaknesses
CWE-ID |
Weakness Name |
Source |
CWE-264 |
Category : Permissions, Privileges, and Access Controls Weaknesses in this category are related to the management of permissions, privileges, and other security features that are used to perform access control. |
|
Metrics
Metrics |
Score |
Severity |
CVSS Vector |
Source |
V2 |
6.4 |
|
AV:N/AC:L/Au:N/C:N/I:P/A:P |
[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.
Exploit information
Exploit Database EDB-ID : 37841
Publication date : 2015-08-18 22h00 +00:00
Author : KeenTeam
EDB Verified : Yes
Source: https://code.google.com/p/google-security-research/issues/detail?id=279&can=1&q=label%3AProduct-Flash%20modified-after%3A2015%2F8%2F17&sort=id
FlashBroker - Junction Check Bypass With Locked Directory IE PM Sandbox Escape
1. Windows 8.1 Internet Explorer Protected Mode Bypass in FlashBroker
FlashBroker is vulnerable to NTFS junction attack to write an arbitrary file to the filesystem under user permissions.
There is a bad check in FlashBroker BrokerCreateFile method and BrokerMoveFileEx method. FlashBroker uses CreateFile to open the destination folder for check. If CreateFile fails, the destination will be considered as a valid path. However, FlashBroker uses dwShareMode as 0 in CreateFile, which make CreateFile always fail if handle of the destination folder is held by other.
The PoC writes calc.bat to startup folder. It has been tested by injecting the dll into 32-bit low integrity level IE process with Adobe Flash Player 16.0.0.305 (KB3021953) installed. It does not work in IE11 EPM as it needs to write normally to the temporary folder to setup the junction.
2. Credit
Jietao Yang and Jihui Lu of KeenTeam (@K33nTeam) is credited for the vulnerability.
Proof of Concept:
https://gitlab.com/exploit-database/exploitdb-bin-sploits/-/raw/main/bin-sploits/37841.zip
Products Mentioned
Configuraton 0
Adobe>>Flash_player >> Version To (including) 11.2.202.475
Linux>>Linux_kernel >> Version -
Configuraton 0
Adobe>>Air >> Version To (including) 17.0.0.144
Adobe>>Air_sdk >> Version To (including) 17.0.0.144
Adobe>>Air_sdk_\&_compiler >> Version To (including) 17.0.0.144
Configuraton 0
Adobe>>Flash_player >> Version To (including) 13.0.0.264
Adobe>>Flash_player >> Version 14.0.0.125
Adobe>>Flash_player >> Version 14.0.0.145
Adobe>>Flash_player >> Version 14.0.0.176
Adobe>>Flash_player >> Version 14.0.0.179
Adobe>>Flash_player >> Version 15.0.0.152
Adobe>>Flash_player >> Version 15.0.0.167
Adobe>>Flash_player >> Version 15.0.0.189
Adobe>>Flash_player >> Version 15.0.0.223
Adobe>>Flash_player >> Version 15.0.0.239
Adobe>>Flash_player >> Version 15.0.0.246
Adobe>>Flash_player >> Version 16.0.0.235
Adobe>>Flash_player >> Version 16.0.0.257
Adobe>>Flash_player >> Version 16.0.0.287
Adobe>>Flash_player >> Version 16.0.0.296
Adobe>>Flash_player >> Version 17.0.0.134
Adobe>>Flash_player >> Version 17.0.0.169
Apple>>Mac_os_x >> Version -
Microsoft>>Windows >> Version -
References