Microsoft Office 2003/2007 Library Loader untrusted search path

CVSS Meta Temp Score
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CTI Interest Score
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7.7$0-$5k0.00

A vulnerability, which was classified as critical, has been found in Microsoft Office 2003/2007 (Office Suite Software). Affected by this issue is some unknown functionality of the component Library Loader. The manipulation with an unknown input leads to a untrusted search path vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Untrusted search path vulnerability in Microsoft Office 2003 SP3 and 2007 SP2 allows local users to gain privileges via a Trojan horse DLL in the current working directory, as demonstrated by a directory that contains a .doc, .ppt, or .xls file, aka "Office Component Insecure Library Loading Vulnerability."

The issue has been introduced in 11/17/2003. The weakness was disclosed 09/13/2011 by Parvez Anwar David Warren with CERT/CC (Website). The advisory is shared for download at kb.cert.org. This vulnerability is handled as CVE-2011-1980 since 05/09/2011. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 03/19/2021). The MITRE ATT&CK project declares the attack technique as T1574.

The vulnerability was handled as a non-public zero-day exploit for at least 2857 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 56176 (MS11-073: Vulnerabilities in Microsoft Office Could Allow Remote Code Execution (2587634)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows : Microsoft Bulletins and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 110157 (Microsoft Office Remote Code Execution Vulnerability (MS11-073)).

Upgrading eliminates this vulnerability. Applying the patch MS11-073 is able to eliminate this problem. The bugfix is ready for download at technet.microsoft.com. The best possible mitigation is suggested to be upgrading to the latest version. 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 X-Force (69501), Tenable (56176), SecurityFocus (BID 49513†), Secunia (SA45020†) and Vulnerability Center (SBV-33227†). The entry VDB-58488 is pretty similar.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 8.1
VulDB Meta Temp Score: 7.7

VulDB Base Score: 8.1
VulDB Temp Score: 7.7
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CVSSv2info

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VulDB Base Score: 🔍
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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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Current Price Estimation: 🔍

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Nessus ID: 56176
Nessus Name: MS11-073: Vulnerabilities in Microsoft Office Could Allow Remote Code Execution (2587634)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 902567
OpenVAS Name: Microsoft Office Remote Code Execution Vulnerabilites (2587634)
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Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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Patch: MS11-073
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Timelineinfo

11/17/2003 🔍
05/09/2011 +2730 days 🔍
09/13/2011 +127 days 🔍
09/13/2011 +0 days 🔍
09/13/2011 +0 days 🔍
09/13/2011 +0 days 🔍
09/13/2011 +0 days 🔍
09/14/2011 +1 days 🔍
09/14/2011 +0 days 🔍
09/15/2011 +1 days 🔍
09/16/2011 +1 days 🔍
03/19/2021 +3472 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: kb.cert.org
Researcher: Parvez Anwar David Warren
Organization: CERT/CC
Status: Not defined

CVE: CVE-2011-1980 (🔍)
OVAL: 🔍
IAVM: 🔍

X-Force: 69501
SecurityFocus: 49513 - Microsoft Office 'MSO.dll' Uninitialized Pointer (CVE-2011-1982) Remote Code Execution Vulnerability
Secunia: 45020 - Microsoft Office Insecure Library Loading and Uninitialised Object Pointer Vulnerabilities, Highly Critical
Vulnerability Center: 33227 - [MS11-073] Microsoft Office 2003 and Office 2007 Remote Arbitrary Code Execution Vulnerability, Medium

See also: 🔍

Entryinfo

Created: 09/16/2011 02:00 AM
Updated: 03/19/2021 03:01 PM
Changes: 09/16/2011 02:00 AM (86), 04/01/2017 10:26 AM (12), 03/19/2021 03:01 PM (3)
Complete: 🔍
Cache ID: 18:D7A:40

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