Microsoft Excel 2010 SP2/2013 RT SP1/2013 SP1/2016/2016 C2R memory corruption
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
6.9 | $0-$5k | 0.00 |
A vulnerability was found in Microsoft Excel 2010 SP2/2013 RT SP1/2013 SP1/2016/2016 C2R (Spreadsheet Software). It has been classified as critical. Affected is an unknown part. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability.
The bug was discovered 08/14/2018. The weakness was shared 08/14/2018 with Microsoft as confirmed security update guide (Website). The advisory is available at portal.msrc.microsoft.com. The vendor cooperated in the coordination of the public release. This vulnerability is traded as CVE-2018-8379 since 03/14/2018. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The advisory points out:
A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in memory. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the current user. If the current user is logged on with administrative user rights, an attacker could take control of the affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.
The vulnerability scanner Nessus provides a plugin with the ID 111694 (Security Updates for Microsoft Excel Products (August 2018)), 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 110322 (Microsoft Office and Microsoft Office Services and Web Apps Security Update August 2018).
Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (111694). The entries 122870, 122871, 122872 and 122873 are related to this item.
Product
Type
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
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CVSSv3
VulDB Meta Base Score: 7.0VulDB Meta Temp Score: 6.9
VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.8
NVD Vector: 🔍
CVSSv2
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Exploiting
Class: Memory corruptionCWE: CWE-119
ATT&CK: Unknown
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
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Current Price Estimation: 🔍
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Nessus ID: 111694
Nessus Name: Security Updates for Microsoft Excel Products (August 2018)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: PatchStatus: 🔍
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Timeline
03/14/2018 🔍08/14/2018 🔍
08/14/2018 🔍
08/14/2018 🔍
08/14/2018 🔍
08/14/2018 🔍
08/14/2018 🔍
08/15/2018 🔍
05/02/2023 🔍
Sources
Vendor: microsoft.comAdvisory: portal.msrc.microsoft.com
Organization: Microsoft
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍
CVE: CVE-2018-8379 (🔍)
OVAL: 🔍
SecurityTracker: 1041463
SecurityFocus: 104997 - Microsoft Excel CVE-2018-8379 Remote Code Execution Vulnerability
See also: 🔍
Entry
Created: 08/14/2018 21:49Updated: 05/02/2023 08:10
Changes: 08/14/2018 21:49 (75), 03/15/2020 15:35 (6), 05/02/2023 08:10 (5)
Complete: 🔍
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