CVE-2018-8502
published 2018-10-10CVE-2018-8502: A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in Protected View, aka "Microsoft…
PriorityP260high8.8CVSS 3.0
AVNACLPRNUIRSUCHIHAH
EPSS
20.46%
97.4th percentile
A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in Protected View, aka "Microsoft Excel Remote Code Execution Vulnerability." This affects Office 365 ProPlus, Microsoft Office, Microsoft Excel.
Affected
37 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | excel | — | — |
| microsoft | excel | — | — |
| microsoft | excel | — | — |
| microsoft | microsoft_excel | — | — |
| microsoft | microsoft_excel | — | — |
| microsoft | microsoft_excel | — | — |
| microsoft | microsoft_excel | — | — |
| microsoft | microsoft_excel | — | — |
| microsoft | microsoft_excel | — | — |
| microsoft | microsoft_excel | — | — |
| microsoft | microsoft_office | — | — |
| microsoft | microsoft_office | — | — |
| microsoft | microsoft_office | — | — |
| microsoft | microsoft_office | — | — |
| microsoft | microsoft_office | — | — |
| microsoft | microsoft_office | — | — |
| microsoft | microsoft_office | — | — |
| microsoft | microsoft_office | — | — |
| microsoft | microsoft_office | — | — |
| microsoft | office | — | — |
| microsoft | office | — | — |
| microsoft | office | — | — |
| microsoft | office | — | — |
| microsoft | office | — | — |
| microsoft | office | — | — |
Detection & IOCsextracted from sources · hover to see the quote
- →Attack vector requires a user to open a specially crafted Microsoft Excel file; the Preview Pane is NOT an attack vector — only full file open triggers the vulnerability ↗
- →The vulnerability is triggered specifically when Excel fails to handle objects in Protected View — monitor for Excel processes spawning child processes or executing code after opening files in Protected View ↗
- →Preview Pane is confirmed NOT an attack vector; detections should focus on full document open events, not preview actions ↗
- →Exploitation likelihood is rated 'More Likely' for both latest and older software releases — prioritize detection and patching across all supported Office versions including Office 365 ProPlus, Microsoft Office, and Microsoft Excel ↗
CVSS provenance
nvdv3.08.8HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvdv2.09.3CRITICALAV:N/AC:M/Au:N/C:C/I:C/A:C
vendor_msrc8.8HIGH
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GHSA
GHSA-qwg4-xph2-mwgf: A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in Protected View, aka "Mi
ghsa_unreviewed·2022-05-13
CVE-2018-8502 [HIGH] GHSA-qwg4-xph2-mwgf: A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in Protected View, aka "Mi
A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in Protected View, aka "Microsoft Excel Remote Code Execution Vulnerability." This affects Office 365 ProPlus, Microsoft Office, Microsoft Excel.
Microsoft
Microsoft Excel Remote Code Execution Vulnerability
vendor_msrc·2018-10-09·CVSS 8.8
CVE-2018-8502 [HIGH] Microsoft Excel Remote Code Execution Vulnerability
Microsoft Excel Remote Code Execution Vulnerability
Description: A remote code execution vulnerability exists in Microsoft Excel software when the software fails to properly handle objects in Protected View. 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.
Exploitation of the vulnerability requires that a user open a specially crafted
No detection rules found.
No public exploits indexed.
Talos
Microsoft Patch Tuesday — October 18: Vulnerability disclosures and Snort coverage
blogs_talos·2018-10-09·CVSS 7.5
[HIGH] Microsoft Patch Tuesday — October 18: Vulnerability disclosures and Snort coverage
Microsoft released its monthly security update today, disclosing a variety of vulnerabilities in several of its products. The latest Patch Tuesday covers 49 vulnerabilities, 12 of which are rated "critical," 34 that are rated "important,” two that are considered to have “moderate” severity and one that’s rated as “low.”
The advisories cover bugs in the Chakra scripting engine, the Microsoft Edge internet browser and the Microsoft Office suite of products, among other software.
This update also includes a critical advisory that covers updates to the Microsoft Office suite of products.
Please visit the SNORTⓇ blog here if you would like to know more about the coverage we have for these vulnerabilities.
Critical vulnerabilities
Microsoft has disclosed 12 critical vulnerabilities this mont
Talos
Microsoft Patch Tuesday — October 18: Vulnerability disclosures and Snort coverage
blogs_talos·2018-10-09·CVSS 7.5
[HIGH] Microsoft Patch Tuesday — October 18: Vulnerability disclosures and Snort coverage
## Microsoft Patch Tuesday — October 18: Vulnerability disclosures and Snort coverage
Microsoft released its monthly security update today, disclosing a variety of vulnerabilities in several of its products. The latest Patch Tuesday covers 49 vulnerabilities, 12 of which are rated "critical," 34 that are rated "important,” two that are considered to have “moderate” severity and one that’s rated as “low.”
The advisories cover bugs in the Chakra scripting engine, the Microsoft Edge internet browser and the Microsoft Office suite of products, among other software.
This update also includes a critical advisory that covers updates to the Microsoft Office suite of products .
Please visit the SNORTⓇ blog here if you would like to know more about the coverage we have for these vulnerabilities.
http://www.securityfocus.com/bid/105498http://www.securitytracker.com/id/1041839https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8502http://www.securityfocus.com/bid/105498http://www.securitytracker.com/id/1041839https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8502
2018-10-10
Published