| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 6.7 | $0-$5k | 0.00 |
Summary
A vulnerability has been found in Microsoft Office and classified as critical. Affected is an unknown function of the component Object Handler. The manipulation leads to memory corruption. This vulnerability is documented as CVE-2017-8501. The attack can be initiated remotely. There is not any exploit available. Applying a patch is the recommended action to fix this issue.
Details
A vulnerability, which was classified as critical, has been found in Microsoft Office (Office Suite Software) (the affected version unknown). This issue affects an unknown part of the component Object Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:
Microsoft Office allows a remote code execution vulnerability due to the way that it handles objects in memory, aka "Microsoft Office Memory Corruption Vulnerability". This CVE ID is unique from CVE-2017-8502.
The bug was discovered 07/11/2017. The weakness was released 07/11/2017 with Qihoo as KB3203477 as confirmed security update guide (Website). The advisory is shared at portal.msrc.microsoft.com. The identification of this vulnerability is CVE-2017-8501 since 05/03/2017. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The advisory points out:
A remote code execution vulnerability exists in Microsoft Office 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 101364 (Security Update for Microsoft Office (July 2017) (macOS)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family MacOS X Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 110300 (Microsoft Office and Microsoft Office Services and Web Apps Security Update July 2017).
Applying the patch KB3203477 is able to eliminate this problem. The bugfix is ready for download at catalog.update.microsoft.com. A possible mitigation has been published immediately after the disclosure of the vulnerability.
The vulnerability is also documented in the databases at Tenable (101364) and SecurityFocus (BID 99441†). Entries connected to this vulnerability are available at VDB-103403, VDB-103422, VDB-103433 and VDB-103434. If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Product
Type
Vendor
Name
License
Website
- Vendor: https://www.microsoft.com/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
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
| AV | AC | Au | C | I | A |
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| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Memory corruptionCWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍
Physical: Partially
Local: Yes
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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| Today | Unlock | Unlock | Unlock | Unlock |
Nessus ID: 101364
Nessus Name: Security Update for Microsoft Office (July 2017) (macOS)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
OpenVAS ID: 802136
OpenVAS Name: Microsoft SharePoint Enterprise Server 2013 Remote Code Execution Vulnerability (KB3213559)
OpenVAS File: 🔍
OpenVAS Family: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: PatchStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Patch: KB3203477
Timeline
05/03/2017 🔍07/11/2017 🔍
07/11/2017 🔍
07/11/2017 🔍
07/11/2017 🔍
07/11/2017 🔍
07/11/2017 🔍
07/12/2017 🔍
12/31/2020 🔍
Sources
Vendor: microsoft.comAdvisory: KB3203477
Researcher: Yangkang
Organization: Qihoo
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2017-8501 (🔍)
GCVE (CVE): GCVE-0-2017-8501
GCVE (VulDB): GCVE-100-103421
OVAL: 🔍
SecurityFocus: 99441 - Microsoft Office CVE-2017-8501 Memory Corruption Vulnerability
SecurityTracker: 1038851
See also: 🔍
Entry
Created: 07/12/2017 10:36Updated: 12/31/2020 16:47
Changes: 07/12/2017 10:36 (81), 10/24/2019 18:51 (5), 12/31/2020 16:44 (2), 12/31/2020 16:47 (1)
Complete: 🔍
Cache ID: 216::103
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
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