Microsoft Office 2007/2010/2013 Chinese Grammar Checker Library untrusted search path

CVSS Meta Temp Score
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CTI Interest Score
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6.2$0-$5k0.00

A vulnerability was found in Microsoft Office 2007/2010/2013 (Office Suite Software). It has been classified as critical. This affects an unknown code of the component Chinese Grammar Checker. The manipulation as part of a Library leads to a untrusted search path vulnerability. CWE is classifying the issue as CWE-426. The product searches for critical resources using an externally-supplied search path that can point to resources that are not under the product's direct control. This is going to have an impact on confidentiality, and integrity. The summary by CVE is:

Untrusted search path vulnerability in Microsoft Office 2007 SP3, 2010 SP1 and SP2, and 2013 Gold, SP1, RT, and RT SP1, when the Simplified Chinese Proofing Tool is enabled, allows local users to gain privileges via a Trojan horse DLL in the current working directory, as demonstrated by a directory that contains a .docx file, aka "Microsoft Office Chinese Grammar Checking Vulnerability."

The issue has been introduced in 01/30/2007. The weakness was disclosed 05/13/2014 with NSFOCUS as MS14-023 as confirmed bulletin (Technet). It is possible to read the advisory at technet.microsoft.com. This vulnerability is uniquely identified as CVE-2014-1756 since 01/29/2014. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1574 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 2660 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 73982 (MS14-023: Vulnerabilities in Microsoft Office Could Allow Remote Code Execution (2961037)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins. The commercial vulnerability scanner Qualys is able to test this issue with plugin 110237 (Microsoft Office Could Allow Remote Code Execution Vulnerabilities (MS14-023)).

Applying the patch MS14-023 is able to eliminate this problem. The bugfix is ready for download at technet.microsoft.com. A possible mitigation has been published immediately after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 10880.

The vulnerability is also documented in the databases at Tenable (73982), SecurityFocus (BID 67274†), Secunia (SA58136†), SecurityTracker (ID 1030230†) and Vulnerability Center (SBV-44478†). Further details are available at blog.spiderlabs.com. The entries VDB-13223, VDB-13222, VDB-13226 and VDB-13225 are pretty similar. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

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CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.2

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
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CVSSv2info

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Exploitinginfo

Class: Untrusted search path
CWE: CWE-426
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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Nessus ID: 73982
Nessus Name: MS14-023: Vulnerabilities in Microsoft Office Could Allow Remote Code Execution (2961037)
Nessus File: 🔍
Nessus Risk: 🔍
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OpenVAS ID: 804450
OpenVAS Name: Microsoft Office Remote Code Execution Vulnerabilities (2961037)
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Threat Intelligenceinfo

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Countermeasuresinfo

Recommended: Patch
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Patch: MS14-023
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McAfee IPS Version: 🔍

Timelineinfo

01/30/2007 🔍
01/29/2014 +2556 days 🔍
05/13/2014 +104 days 🔍
05/13/2014 +0 days 🔍
05/13/2014 +0 days 🔍
05/13/2014 +0 days 🔍
05/13/2014 +0 days 🔍
05/14/2014 +1 days 🔍
05/14/2014 +0 days 🔍
05/14/2014 +0 days 🔍
05/16/2014 +2 days 🔍
06/19/2021 +2591 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS14-023
Organization: NSFOCUS
Status: Confirmed

CVE: CVE-2014-1756 (🔍)
GCVE (CVE): GCVE-0-2014-1756
GCVE (VulDB): GCVE-100-13227

OVAL: 🔍
IAVM: 🔍

SecurityFocus: 67274
Secunia: 58136 - Microsoft Office Insecure Library Loading and Token Disclosure Two Vulnerabilities, Highly Critical
SecurityTracker: 1030230 - Microsoft Office Bugs Lets Remote Users Execute Arbitrary Code and Obtain Access Tokens
Vulnerability Center: 44478 - [MS14-023] Microsoft Office 2007, 2010, 2013 and 2013 Remote Code Execution via Crafted Document, Critical

Misc.: 🔍
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Entryinfo

Created: 05/16/2014 11:12 PM
Updated: 06/19/2021 04:43 PM
Changes: 05/16/2014 11:12 PM (90), 05/28/2017 02:45 AM (4), 06/19/2021 04:43 PM (3)
Complete: 🔍
Cache ID: 18:FCE:40

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