PT-2017-3063 · Microsoft · Windows Server 2016+8

Published 2017-10-10 · Updated 2019-10-03 · CVE-2017-8727

Positive Technologies (AI Summary)

CVSS v2.0

7.6

High

Base vector

AV:N/AC:H/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions Microsoft Windows versions prior to the fixed version Microsoft Windows Server 2008 SP2 and R2 SP1 Microsoft Windows 7 SP1 Microsoft Windows 8.1 and RT 8.1 Microsoft Windows Server 2012 and R2 Microsoft Windows 10 versions prior to the fixed version, including Gold, 1511, 1607, 1703 Microsoft Windows Server 2016

Description The issue is related to insufficient access restrictions in the Microsoft Windows Text Services Framework (TSF) of the Windows operating system. It may allow a remote attacker to execute arbitrary code in the context of the current user by using a specially crafted website. The vulnerability is due to how Microsoft Windows Text Services Framework handles objects in memory.

Recommendations For Microsoft Windows Server 2008 SP2 and R2 SP1, update to a version that includes the fix for this issue. For Microsoft Windows 7 SP1, apply the necessary patch to resolve the vulnerability. For Microsoft Windows 8.1 and RT 8.1, install the update that addresses this issue. For Microsoft Windows Server 2012 and R2, apply the relevant security update to fix the vulnerability. For Microsoft Windows 10 versions prior to the fixed version, including Gold, 1511, 1607, 1703, update to a newer version that includes the fix. For Microsoft Windows Server 2016, apply the necessary patch to resolve the issue. As a temporary workaround, consider restricting access to the TSF interface until a patch is available.

Fix

RCE

Buffer Overflow

Weakness Enumeration

CWE-119

CWE-264

Related Identifiers

BDU:2017-02433

CVE-2017-8727

Affected Products

Windows

Windows 10

Windows 7

Windows 8.1

Windows Rt 8.1

Windows Server 2008

Windows Server 2012

Windows Server 2016

Windows Text Services Framework

References · 8

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-8727 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2017-8727 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2017-8727 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-8727 · Security Note
• https://bdu.fstec.ru/vul/2017-02433 · Security Note
• https://osv.dev/vulnerability/CVE-2017-8727 · Vendor Advisory
• http://securitytracker.com/id/1039537 · Note
• http://securityfocus.com/bid/101142 · Note