CVE-2021-42292
published 2021-11-10CVE-2021-42292: Microsoft Excel Security Feature Bypass Vulnerability
PriorityP181high7.8CVSS 3.1
AVLACLPRNUIRSUCHIHAH
KEVITW
CISA Known Exploited Vulnerabilitydue 2021-12-01
Exploited in the wild
EPSS
43.00%
98.7th percentile
Microsoft Excel Security Feature Bypass Vulnerability
Affected
27 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | excel | — | — |
| microsoft | excel | — | — |
| microsoft | microsoft_365_apps_for_enterprise | >= 16.0.1 < https://aka.ms/OfficeSecurityReleases | https://aka.ms/OfficeSecurityReleases |
| microsoft | microsoft_excel_2013_service_pack_1 | >= 15.0.0.0 < 15.0.5397.1001 | 15.0.5397.1001 |
| microsoft | microsoft_excel_2016 | >= 16.0.0.0 < 16.0.5239.1001 | 16.0.5239.1001 |
| microsoft | microsoft_office_2013_service_pack_1 | >= 15.0.0 < 15.0.5397.1001 | 15.0.5397.1001 |
| microsoft | microsoft_office_2016 | >= 16.0.0 < 16.0.5239.1001 | 16.0.5239.1001 |
| microsoft | microsoft_office_2019 | >= 19.0.0 < https://aka.ms/OfficeSecurityReleases | https://aka.ms/OfficeSecurityReleases |
| microsoft | microsoft_office_2019_for_mac | >= 16.0.0 < 16.55.21111400 | 16.55.21111400 |
| microsoft | microsoft_office_ltsc_2021 | >= 16.0.1 < https://aka.ms/OfficeSecurityReleases | https://aka.ms/OfficeSecurityReleases |
| microsoft | microsoft_office_ltsc_for_mac_2021 | >= 16.0.1 < 16.55.21111400 | 16.55.21111400 |
| microsoft | office | — | — |
| microsoft | office | — | — |
| msrc | microsoft_365_apps_for_enterprise_for_32-bit_systems | — | — |
| msrc | microsoft_365_apps_for_enterprise_for_64-bit_systems | — | — |
| msrc | microsoft_excel_2013_rt_service_pack_1 | — | — |
| msrc | microsoft_excel_2013_service_pack_1 | — | — |
| msrc | microsoft_excel_2016 | — | — |
| msrc | microsoft_office_2013_rt_service_pack_1 | — | — |
| msrc | microsoft_office_2013_service_pack_1 | — | — |
| msrc | microsoft_office_2016 | — | — |
| msrc | microsoft_office_2019_for_32-bit_editions | — | — |
| msrc | microsoft_office_2019_for_64-bit_editions | — | — |
| msrc | microsoft_office_2019_for_mac | — | — |
| msrc | microsoft_office_ltsc_2021_for_32-bit_editions | — | — |
Detection & IOCsextracted from sources · hover to see the quote
snort↗
SID 58519
snort↗
SID 58520
snort↗
SID 58539
snort↗
SID 58540
snort↗
SID 58541
snort↗
Snort 3 SID 300054
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvdv2.06.8MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P
vulncheck7.8HIGH
cisa7.8HIGH
vendor_msrc7.8HIGH
CVEs like this are exactly what “Exploited This Week” covers.
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CISA
Microsoft Excel Security Feature Bypass
cisa·2021-11-17·CVSS 7.8
CVE-2021-42292 [HIGH] CWE-357 Microsoft Excel Security Feature Bypass
Vulnerability: Microsoft Excel Security Feature Bypass
Affected: Microsoft Office
A security feature bypass vulnerability in Microsoft Excel would allow a local user to perform arbitrary code execution.
Required Action: Apply updates per vendor instructions.
Notes: https://nvd.nist.gov/vuln/detail/CVE-2021-42292
Remediation Due Date: 2021-12-01
Microsoft
Microsoft Excel Security Feature Bypass Vulnerability
vendor_msrc·2021-11-09·CVSS 7.8
CVE-2021-42292 [HIGH] Microsoft Excel Security Feature Bypass Vulnerability
Microsoft Excel Security Feature Bypass Vulnerability
FAQ: Are the updates for the Microsoft Office for Mac currently available?
The security update for Microsoft Office 2019 for Mac and Microsoft Office LTSC for Mac 2021 are not immediately available. The updates will be released as soon as possible, and when they are available, customers will be notified via a revision to this CVE information.
FAQ: Is the Preview Pane an attack vector for this vulnerability?
No, the Preview Pane is not an attack vector.
FAQ: There are multiple update packages available for some of the affected software. Do I need to install all the updates listed in the Security Updates table for the software?
Yes. Customers should apply all updates offered for the software installed on their systems. If multiple upda
GHSA
GHSA-jp63-fcqh-36rc: Microsoft Excel Security Feature Bypass Vulnerability
ghsa_unreviewed·2022-05-24
CVE-2021-42292 [HIGH] CWE-863 GHSA-jp63-fcqh-36rc: Microsoft Excel Security Feature Bypass Vulnerability
Microsoft Excel Security Feature Bypass Vulnerability
VulnCheck
Microsoft Excel Security Feature Bypass
vulncheck·2021·CVSS 7.8
CVE-2021-42292 [HIGH] CWE-357 Microsoft Excel Security Feature Bypass
Microsoft Excel Security Feature Bypass
A security feature bypass vulnerability in Microsoft Excel would allow a local user to perform arbitrary code execution.
Affected: Microsoft Office
Required Action: Apply updates per vendor instructions.
Exploitation References: https://docs.google.com/spreadsheets/d/1lkNJ0uQwbeC1ZTRrxdtuPLCIl7mlUreoKfSIgajnSyY/edit; https://api.msrc.microsoft.com/cvrf/v3.0/cvrf/2021-Nov; https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json
Remediation Due: 2021-12-01
No public exploits indexed.
Qualys
Managing CISA Known Exploited Vulnerabilities with Qualys VMDR | Qualys
blogs_qualys·2022-02-23
Managing CISA Known Exploited Vulnerabilities with Qualys VMDR | Qualys
#### Table of Contents
- Situation
- Directive Scope
- CISA Catalog of Known Exploited Vulnerabilities
- Detect CISA Vulnerabilities Using Qualys VMDR
- CISA Exploited RTI
- Detailed Operational Dashboard
- Remediation
- Federal Enterprises and Agencies Can Act Now
- Summary
- Getting Started
CISA released a directive in November 2021, recommending urgent and prioritized remediation of actively exploited vulnerabilities. Both government agencies and corporations should heed this advice. This blog outlines how Qualys Vulnerability Management, Detection & Response can be used by any organization to respond to this directive efficiently and effectively.
## Situation
Last November 2021, the U.S. Cybersecurity and Infrastructure Security Agency (CISA) released a Binding Operational Directiv
Checkpoint
15th November – Threat Intelligence Report
blogs_checkpoint·2021-11-15
CVE-2021-42237 15th November – Threat Intelligence Report
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## 15th November – Threat Intelligence Report
For the latest discoveries in cyber research for the week of 15th November, please download our Threat Intelligence Bulletin .
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Check Point Research notes a 178% increase in the number of malicious shopping websites, compared to the rest of the year, spotting over 5300 different malicious websites per week ahead of the end of this year’s e-shopping season.
Check Point Research has analyzed the operations of threat actor MosesStaff following its
Talos
Threat Source newsletter (Nov. 11, 2021)
blogs_talos·2021-11-11
Threat Source newsletter (Nov. 11, 2021)
## Threat Source newsletter (Nov. 11, 2021)
Good afternoon, Talos readers.
It's important to be proactive, and not reactive, with your security. It's always better to see the worst coming and block it than have to scramble to deal with the worst-case scenario in the moment.
That's why it's so important to have a polished Incident Response Plan that's tested and proven. A solid IR plan will ensure your team has the appropriate protections in place, and if you are the target of a cyber attack, you'll be ready to act at a moment's notice to snuff out the threat before it becomes a full-on cybersecurity incident.
Whether you want to create an IR plan from scratch or just refine yours, you'll want to watch our live stream from last week with Martin Lee from Talos research and Paul Lee from
Qualys
Microsoft & Adobe Patch Tuesday (November 2021) – Microsoft 55 Vulnerabilities with 6 Critical, 6 Zero-Days. Adobe 4 Vulnerabilities | Qualys
blogs_qualys·2021-11-11·CVSS 9.0
CVE-2021-42298 [CRITICAL] Microsoft & Adobe Patch Tuesday (November 2021) – Microsoft 55 Vulnerabilities with 6 Critical, 6 Zero-Days. Adobe 4 Vulnerabilities | Qualys
#### Table of Contents
- Microsoft Patch Tuesday November 2021
- Adobe Patch Tuesday October 2021
- Discover Patch Tuesday Vulnerabilities in VMDR
- Respond by Patching
- Patch Tuesday Dashboard
- About Patch Tuesday
## Microsoft Patch Tuesday – November 2021
Microsoft patched 55 vulnerabilities in their November 2021 Patch Tuesday release, of which six are rated as critical severity and six were previously reported as zero-days.
### Critical Microsoft Vulnerabilities Patched
CVE-2021-42298 – Microsoft Defender Remote Code Execution Vulnerability
This vulnerability in Microsoft Defender can be exploited using Maliciously crafted files. The remote code execution vulnerability will be triggered when the malicious file is opened by a user or scanned automatically via an outdated version
Qualys
Microsoft & Adobe Patch Tuesday (November 2021) – Microsoft 55 Vulnerabilities with 6 Critical, 6 Zero-Days. Adobe 4 Vulnerabilities
blogs_qualys·2021-11-11·CVSS 9.0
CVE-2021-42298 [CRITICAL] Microsoft & Adobe Patch Tuesday (November 2021) – Microsoft 55 Vulnerabilities with 6 Critical, 6 Zero-Days. Adobe 4 Vulnerabilities
## Table of Contents
Microsoft Patch Tuesday November 2021
Adobe Patch Tuesday October 2021
Discover Patch Tuesday Vulnerabilities in VMDR
Respond by Patching
Patch Tuesday Dashboard
About Patch Tuesday
## Microsoft Patch Tuesday – November 2021
Microsoft patched 55 vulnerabilities in their November 2021 Patch Tuesday release, of which six are rated as critical severity and six were previously reported as zero-days.
## Critical Microsoft Vulnerabilities Patched
CVE-2021-42298 – Microsoft Defender Remote Code Execution Vulnerability
This vulnerability in Microsoft Defender can be exploited using Maliciously crafted files. The remote code execution vulnerability will be triggered when the malicious file is opened by a user or scanned automatically via an outdated version of Micros
Talos
Threat Source newsletter (Nov. 11, 2021)
blogs_talos·2021-11-11
Threat Source newsletter (Nov. 11, 2021)
Good afternoon, Talos readers.
It's important to be proactive, and not reactive, with your security. It's always better to see the worst coming and block it than have to scramble to deal with the worst-case scenario in the moment.
That's why it's so important to have a polished Incident Response Plan that's tested and proven. A solid IR plan will ensure your team has the appropriate protections in place, and if you are the target of a cyber attack, you'll be ready to act at a moment's notice to snuff out the threat before it becomes a full-on cybersecurity incident.
Whether you want to create an IR plan from scratch or just refine yours, you'll want to watch our live stream from last week with Martin Lee from Talos research and Paul Lee from Talos Incident Response. Watch the full recor
Trendmicro
November Continues Streak of Quiet Patch Tuesdays
blogs_trendmicro·2021-11-10·CVSS 9.0
[CRITICAL] November Continues Streak of Quiet Patch Tuesdays
Ausnutzung von Schwachstellen
## November Continues Streak of Quiet Patch Tuesdays
November continues a recent pattern of relatively peaceful Patch Tuesday cycles. There were only six vulnerabilities rated as Critical this month, with 49 more rated as Important for a total of 55 for the month of November.
By: Trend Micro Nov 10, 2021 Read time: ( words)
Save to Folio
November continues a recent pattern of relatively peaceful Patch Tuesday cycles. There were only six vulnerabilities rated as Critical this month, with 49 more rated as Important for a total of 55 for the month of November (less than half of the vulnerabilities in November last year). Of these 55, four were submitted via the Zero Day Initiative (ZDI).
Critical Vulnerabilities: Defender, Remote Desktop
Two Critical vulne
Trendmicro
November Continues Streak of Quiet Patch Tuesdays
blogs_trendmicro·2021-11-10·CVSS 9.0
[CRITICAL] November Continues Streak of Quiet Patch Tuesdays
Exploits y vulnerabilidades
## November Continues Streak of Quiet Patch Tuesdays
November continues a recent pattern of relatively peaceful Patch Tuesday cycles. There were only six vulnerabilities rated as Critical this month, with 49 more rated as Important for a total of 55 for the month of November.
By: Trend Micro Nov 10, 2021 Read time: ( words)
Save to Folio
November continues a recent pattern of relatively peaceful Patch Tuesday cycles. There were only six vulnerabilities rated as Critical this month, with 49 more rated as Important for a total of 55 for the month of November (less than half of the vulnerabilities in November last year). Of these 55, four were submitted via the Zero Day Initiative (ZDI).
Critical Vulnerabilities: Defender, Remote Desktop
Two Critical vulnera
Trendmicro
November Continues Streak of Quiet Patch Tuesdays
blogs_trendmicro·2021-11-10·CVSS 9.0
[CRITICAL] November Continues Streak of Quiet Patch Tuesdays
Exploits & Vulnerabilities
## November Continues Streak of Quiet Patch Tuesdays
November continues a recent pattern of relatively peaceful Patch Tuesday cycles. There were only six vulnerabilities rated as Critical this month, with 49 more rated as Important for a total of 55 for the month of November.
By: Trend Micro Nov 10, 2021 Read time: ( words)
Save to Folio
November continues a recent pattern of relatively peaceful Patch Tuesday cycles. There were only six vulnerabilities rated as Critical this month, with 49 more rated as Important for a total of 55 for the month of November (less than half of the vulnerabilities in November last year). Of these 55, four were submitted via the Zero Day Initiative (ZDI).
Critical Vulnerabilities: Defender, Remote Desktop
Two Critical vulnerab
Trendmicro
November Continues Streak of Quiet Patch Tuesdays
blogs_trendmicro·2021-11-10·CVSS 9.0
[CRITICAL] November Continues Streak of Quiet Patch Tuesdays
Exploits & Vulnerabilities
## November Continues Streak of Quiet Patch Tuesdays
November continues a recent pattern of relatively peaceful Patch Tuesday cycles. There were only six vulnerabilities rated as Critical this month, with 49 more rated as Important for a total of 55 for the month of November.
By: Trend Micro 2021/11/10 Read time: ( words)
Save to Folio
November continues a recent pattern of relatively peaceful Patch Tuesday cycles. There were only six vulnerabilities rated as Critical this month, with 49 more rated as Important for a total of 55 for the month of November (less than half of the vulnerabilities in November last year). Of these 55, four were submitted via the Zero Day Initiative (ZDI).
Critical Vulnerabilities: Defender, Remote Desktop
Two Critical vulnerabil
Trendmicro
November Continues Streak of Quiet Patch Tuesdays
blogs_trendmicro·2021-11-10·CVSS 9.0
[CRITICAL] November Continues Streak of Quiet Patch Tuesdays
Exploits & Vulnerabilities
# November Continues Streak of Quiet Patch Tuesdays
November continues a recent pattern of relatively peaceful Patch Tuesday cycles. There were only six vulnerabilities rated as Critical this month, with 49 more rated as Important for a total of 55 for the month of November.
By: Trend Micro
2021/11/10
Read time: ( words)
Save to Folio
November continues a recent pattern of relatively peaceful Patch Tuesday cycles. There were only six vulnerabilities rated as Critical this month, with 49 more rated as Important for a total of 55 for the month of November (less than half of the vulnerabilities in November last year). Of these 55, four were submitted via the Zero Day Initiative (ZDI).
Critical Vulnerabilities: Defender, Remote Desktop
Two Critical vulnerabil
Trendmicro
November Continues Streak of Quiet Patch Tuesdays
blogs_trendmicro·2021-11-10·CVSS 9.0
[CRITICAL] November Continues Streak of Quiet Patch Tuesdays
Sfruttamento vulnerabilità
## November Continues Streak of Quiet Patch Tuesdays
November continues a recent pattern of relatively peaceful Patch Tuesday cycles. There were only six vulnerabilities rated as Critical this month, with 49 more rated as Important for a total of 55 for the month of November.
By: Trend Micro Nov 10, 2021 Read time: ( words)
Save to Folio
November continues a recent pattern of relatively peaceful Patch Tuesday cycles. There were only six vulnerabilities rated as Critical this month, with 49 more rated as Important for a total of 55 for the month of November (less than half of the vulnerabilities in November last year). Of these 55, four were submitted via the Zero Day Initiative (ZDI).
Critical Vulnerabilities: Defender, Remote Desktop
Two Critical vulnerab
Talos
Microsoft Patch Tuesday for Nov. 2021 — Snort rules and prominent vulnerabilities
blogs_talos·2021-11-09·CVSS 8.8
CVE-2021-42292 [HIGH] Microsoft Patch Tuesday for Nov. 2021 — Snort rules and prominent vulnerabilities
By Jon Munshaw and Tiago Pereira.
Microsoft released its monthly security update Tuesday, disclosing 56 vulnerabilities in the company’s various software, hardware and firmware offerings, including one that’s actively being exploited in the wild.
November’s security update features six critical vulnerabilities, up from last month’s two, which was far lower than average for Microsoft. The other 50 vulnerabilities fixed today are considered “important.”
CVE-2021-42292 is one of those vulnerabilities considered “important” and not critical, though it is the only one included in this security update that Microsoft reports has been spotted being exploited in the wild. An attacker could exploit this vulnerability in Microsoft Excel to bypass certain security settings on targeted machines.
In
Talos
Microsoft Patch Tuesday for Nov. 2021 — Snort rules and prominent vulnerabilities
blogs_talos·2021-11-09·CVSS 8.8
[HIGH] Microsoft Patch Tuesday for Nov. 2021 — Snort rules and prominent vulnerabilities
## Microsoft Patch Tuesday for Nov. 2021 — Snort rules and prominent vulnerabilities
By Jon Munshaw and Tiago Pereira.
Microsoft released its monthly security update Tuesday, disclosing 56 vulnerabilities in the company’s various software, hardware and firmware offerings, including one that’s actively being exploited in the wild.
November’s security update features six critical vulnerabilities, up from last month’s two, which was far lower than average for Microsoft. The other 50 vulnerabilities fixed today are considered “important.”
CVE-2021-42292 is one of those vulnerabilities considered “important” and not critical, though it is the only one included in this security update that Microsoft reports has been spotted being exploited in the wild. An attacker could exploit this vulnerab
Krebs
Microsoft Patch Tuesday, November 2021 Edition
blogs_krebs·2021-11-09·CVSS 4.4
CVE-2021-42292 [MEDIUM] Microsoft Patch Tuesday, November 2021 Edition
Microsoft Corp. today released updates to quash at least 55 security bugs in its Windows operating systems and other software. Two of the patches address vulnerabilities that are already being used in active attacks online, and four of the flaws were disclosed publicly before today — potentially giving adversaries a head start in figuring out how to exploit them.
Among the zero-day bugs is CVE-2021-42292, a “security feature bypass” problem with Microsoft Excel versions 2013-2021 that could allow attackers to install malicious code just by convincing someone to open a booby-trapped Excel file (Microsoft says Mac versions of Office are also affected, but several places are reporting that Office for Mac security updates aren’t available yet).
Microsoft’s revised, more sparse security advis
Krebs
Microsoft Patch Tuesday, November 2021 Edition
blogs_krebs·2021-11-09·CVSS 4.4
CVE-2021-42292 [MEDIUM] Microsoft Patch Tuesday, November 2021 Edition
Microsoft Corp. today released updates to quash at least 55 security bugs in its Windows operating systems and other software. Two of the patches address vulnerabilities that are already being used in active attacks online, and four of the flaws were disclosed publicly before today — potentially giving adversaries a head start in figuring out how to exploit them.
Among the zero-day bugs is CVE-2021-42292 , a “security feature bypass” problem with Microsoft Excel versions 2013-2021 that could allow attackers to install malicious code just by convincing someone to open a booby-trapped Excel file (Microsoft says Mac versions of Office are also affected, but several places are reporting that Office for Mac security updates aren’t available yet).
Microsoft’s revised, more sparse security advi
Tenable
Microsoft’s November 2021 Patch Tuesday Addresses 55 CVEs (CVE-2021-42321)
blogs_tenable·2021-11-09·CVSS 8.8
[HIGH] Microsoft’s November 2021 Patch Tuesday Addresses 55 CVEs (CVE-2021-42321)
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Zscaler found Windows Security Vulnerabilities | 11-09-2021
blogs_zscaler·CVSS 7.8
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2021-11-10
Published
2021-11-17
Added to CISA KEV
Exploited in the wild