Microsoft Windows XP SP3 does not validate addresses in certain IRP handler routines, which allows local users to write data to arbitrary memory locations, and consequently gain privileges, via a crafted address in an IOCTL call, related to (1) the MQAC.sys driver in the MQ Access Control subsystem and (2) the BthPan.sys driver in the Bluetooth Personal Area Networking subsystem.

References

• https://nvd.nist.gov/vuln/detail/CVE-2014-4971
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2014/ms14-062
• https://www.korelogic.com/Resources/Advisories/KL-001-2014-002.txt
• https://www.korelogic.com/Resources/Advisories/KL-001-2014-003.txt
• http://blogs.technet.com/b/srd/archive/2014/10/14/accessing-risk-for-the-october-2014-security-updates.aspx
• http://packetstormsecurity.com/files/127535/Microsoft-XP-SP3-BthPan.sys-Arbitrary-Write-Privilege-Escalation.html
• http://packetstormsecurity.com/files/127536/Microsoft-XP-SP3-MQAC.sys-Arbitrary-Write-Privilege-Escalation.html
• http://packetstormsecurity.com/files/128674/Microsoft-Bluetooth-Personal-Area-Networking-BthPan.sys-Privilege-Escalation.html
• http://seclists.org/fulldisclosure/2014/Jul/96
• http://seclists.org/fulldisclosure/2014/Jul/97
• http://secunia.com/advisories/60974
• http://www.exploit-db.com/exploits/34112
• http://www.exploit-db.com/exploits/34131
• http://www.exploit-db.com/exploits/34982
• http://www.osvdb.org/109387
• http://www.securityfocus.com/archive/1/532843/100/0/threaded
• http://www.securityfocus.com/archive/1/532844/100/0/threaded
• http://www.securityfocus.com/bid/68764
• http://www.securitytracker.com/id/1031025