Microsoft Excel/SharePoint Server fileVersion use after free

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Microsoft Excel and SharePoint Server. This impacts the function fileVersion. This manipulation causes use after free. This vulnerability appears as CVE-2015-2558. There is no available exploit. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability classified as critical was found in Microsoft Excel and SharePoint Server (Spreadsheet Software). Affected by this vulnerability is the function fileVersion. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Use-after-free vulnerability in Microsoft Excel 2007 SP3, Excel 2010 SP2, Excel 2013 SP1, Excel 2013 RT SP1, Excel 2016, Excel for Mac 2011, Excel 2016 for Mac, Excel Viewer, Office Compatibility Pack SP3, and Excel Services on SharePoint Server 2007 SP3, 2010 SP2, and 2013 SP1 allows remote attackers to execute arbitrary code via a long fileVersion element in an Office document, aka "Microsoft Office Memory Corruption Vulnerability."

The weakness was presented 10/13/2015 with Zero Day Initiative as MS15-110 as confirmed bulletin (Technet). The advisory is shared at technet.microsoft.com. This vulnerability is known as CVE-2015-2558 since 03/19/2015. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 86382 (MS15-110: Security Updates for Microsoft Office to Address Remote Code Execution (3096440) (Mac OS X)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family MacOS X Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 110260 (Microsoft Office Remote Code Execution Vulnerabilities (MS15-110)).

Applying the patch MS15-110 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 21297.

The vulnerability is also documented in the databases at Tenable (86382), SecurityFocus (BID 76988†), SecurityTracker (ID 1033803†) and Vulnerability Center (SBV-53402†). Additional details are provided at trustwave.com. See VDB-78362, VDB-78363, VDB-78364 and VDB-78365 for similar entries. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • Microsoft Excel 2010 SP2/2011/2013 SP1/2013 RT SP1/2016
  • Microsoft SharePoint Server 2010 SP2/2013 SP1

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 86382
Nessus Name: MS15-110: Security Updates for Microsoft Office to Address Remote Code Execution (3096440) (Mac OS X)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 802074
OpenVAS Name: Microsoft Office Multiple Remote Code Execution Vulnerabilities-3096440 (Mac OS X)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Patch: MS15-110
TippingPoint: 🔍
Fortigate IPS: 🔍

Timelineinfo

03/19/2015 🔍
10/13/2015 +208 days 🔍
10/13/2015 +0 days 🔍
10/13/2015 +0 days 🔍
10/13/2015 +0 days 🔍
10/13/2015 +0 days 🔍
10/13/2015 +0 days 🔍
10/14/2015 +1 days 🔍
10/14/2015 +0 days 🔍
06/20/2022 +2441 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS15-110
Organization: Zero Day Initiative
Status: Confirmed

CVE: CVE-2015-2558 (🔍)
GCVE (CVE): GCVE-0-2015-2558
GCVE (VulDB): GCVE-100-78373
SecurityFocus: 76988 - Microsoft Office CVE-2015-2558 Memory Corruption Vulnerability
SecurityTracker: 1033803
Vulnerability Center: 53402 - [MS15-110] Microsoft Excel, Excel Viewer, Office Compatibility Pack and Excel Services Remote Code Execution - CVE-2015-2558, Critical

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 10/14/2015 10:35
Updated: 06/20/2022 18:19
Changes: 10/14/2015 10:35 (69), 02/13/2018 07:23 (14), 06/20/2022 18:19 (3)
Complete: 🔍
Cache ID: 216::103

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