CVE-2022-21840
published 2022-01-11CVE-2022-21840: Microsoft Office Remote Code Execution Vulnerability
PriorityP351high8.8CVSS 3.1
AVNACLPRNUIRSUCHIHAH
EPSS
2.92%
85.5th percentile
Microsoft Office Remote Code Execution Vulnerability
Affected
44 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 < 15.0.5415.1000 | 15.0.5415.1000 |
| microsoft | microsoft_excel_2016 | >= 16.0.0.0 < 16.0.5266.1000 | 16.0.5266.1000 |
| microsoft | microsoft_office_2013_service_pack_1 | >= 15.0.0 < 15.0.5415.1000 | 15.0.5415.1000 |
| microsoft | microsoft_office_2016 | >= 16.0.0 < 16.0.5266.1000 | 16.0.5266.1000 |
| microsoft | microsoft_office_2019 | >= 19.0.0 < https://aka.ms/OfficeSecurityReleases | https://aka.ms/OfficeSecurityReleases |
| microsoft | microsoft_office_2019_for_mac | >= 16.0.0 < 16.57.22011101 | 16.57.22011101 |
| 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 < 16.57.22011101 | 16.57.22011101 |
| microsoft | microsoft_office_online_server | >= 16.0.1 < 16.0.10382.20004 | 16.0.10382.20004 |
| microsoft | microsoft_office_web_apps_server_2013_service_pack_1 | >= 15.0.1 < 15.0.5415.1000 | 15.0.5415.1000 |
| microsoft | microsoft_sharepoint_enterprise_server_2013_service_pack_1 | >= 15.0.0 < 15.0.5415.1000 | 15.0.5415.1000 |
| microsoft | microsoft_sharepoint_enterprise_server_2016 | >= 16.0.0 < 16.0.5266.1000 | 16.0.5266.1000 |
| microsoft | microsoft_sharepoint_foundation_2013_service_pack_1 | >= 15.0.0 < 15.0.5415.1000 | 15.0.5415.1000 |
| microsoft | microsoft_sharepoint_server_2019 | >= 16.0.0 < 16.0.10382.20004 | 16.0.10382.20004 |
| microsoft | microsoft_sharepoint_server_subscription_edition | >= 16.0.0 < 16.0.14326.20714 | 16.0.14326.20714 |
| microsoft | office | — | — |
| microsoft | office | — | — |
| microsoft | office | — | — |
| microsoft | office_long_term_servicing_channel | — | — |
| microsoft | office_web_apps | — | — |
| microsoft | sharepoint_enterprise_server | — | — |
| microsoft | sharepoint_server | — | — |
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:N/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
vendor_msrc8.8HIGH
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Microsoft
Microsoft Office Remote Code Execution Vulnerability
vendor_msrc·2022-01-11·CVSS 8.8
CVE-2022-21840 [HIGH] Microsoft Office Remote Code Execution Vulnerability
Microsoft Office Remote Code Execution Vulnerability
FAQ: Is the Preview Pane an attack vector for this vulnerability?
No, the Preview Pane is not an attack vector.
FAQ: According to the CVSS metric, user interaction is required (UI:R). What interaction would the user have to do?
Exploitation of the vulnerability requires that a user open a specially crafted file.
In an email attack scenario, an attacker could exploit the vulnerability by sending the specially crafted file to the user and convincing the user to open the file.
In a web-based attack scenario, an attacker could host a website (or leverage a compromised website that accepts or hosts user-provided content) containing a specially crafted file designed to exploit the vulnerability.
An attacker would have no way to force users
GHSA
GHSA-rq4v-w4c3-3h29: Microsoft Office Remote Code Execution Vulnerability
ghsa_unreviewed·2022-01-12
CVE-2022-21840 [HIGH] CWE-94 GHSA-rq4v-w4c3-3h29: Microsoft Office Remote Code Execution Vulnerability
Microsoft Office Remote Code Execution Vulnerability.
No detection rules found.
No public exploits indexed.
Talos
Threat Source Newsletter (Jan. 13, 2022)
blogs_talos·2022-01-13
Threat Source Newsletter (Jan. 13, 2022)
## Threat Source Newsletter (Jan. 13, 2022)
Good afternoon, Talos readers.
Move out of the way, Log4j! Traditional malware is back with a bang in 2022. While Log4j is likely still occupying many defenders' minds, the bad guys are still out there doing not-Log4j things. We have new research out on a campaign spreading three different remote access tools (RATs) using public internet infrastructures like Amazon Web Services and Microsoft Azure Sphere.
If you're looking to unwind after all the Log4j madness, we also have a new Beers with Talos episode that's one of our more laid-back productions. We, unfortunately, said goodbye to Joel, but it was not without tequila and discussions about "Rent."
## Cybersecurity week in review
A well-known Iranian state-sponsored actor is exploiting the
Talos
Threat Source Newsletter (Jan. 13, 2022)
blogs_talos·2022-01-13
Threat Source Newsletter (Jan. 13, 2022)
Good afternoon, Talos readers.
Move out of the way, Log4j! Traditional malware is back with a bang in 2022. While Log4j is likely still occupying many defenders' minds, the bad guys are still out there doing not-Log4j things. We have new research out on a campaign spreading three different remote access tools (RATs) using public internet infrastructures like Amazon Web Services and Microsoft Azure Sphere.
If you're looking to unwind after all the Log4j madness, we also have a new Beers with Talos episode that's one of our more laid-back productions. We, unfortunately, said goodbye to Joel, but it was not without tequila and discussions about "Rent."
## Cybersecurity week in review
- A well-known Iranian state-sponsored actor is exploiting the widespread Log4j vulnerability to deliver a
Talos
Microsoft Patch Tuesday for Jan. 2022 — Snort rules and prominent vulnerabilities
blogs_talos·2022-01-11·CVSS 8.3
CVE-2022-21840 [HIGH] Microsoft Patch Tuesday for Jan. 2022 — Snort rules and prominent vulnerabilities
Microsoft released its monthly security update Tuesday, disclosing 102 vulnerabilities across its large collection of hardware and software. This is the largest amount of vulnerabilities Microsoft has disclosed in a monthly security update in eight months, however, none of the issues have been exploited in the wild, according to Microsoft.
2022’s first security update features nine critical vulnerabilities, with all but one of the remaining being considered “important.” CVE-2022-21840 is one of the critical vulnerabilities, an issue in Microsoft Office that could allow an attacker to execute remote code on the targeted machine. CVE-2022-21841, CVE-2022-21837 and CVE-2022-21842 are also remote code execution vulnerabilities in the Office suite of products, though they are only rated as “im
Krebs
‘Wormable’ Flaw Leads January 2022 Patch Tuesday
blogs_krebs·2022-01-11·CVSS 9.8
[CRITICAL] ‘Wormable’ Flaw Leads January 2022 Patch Tuesday
Microsoft today released updates to plug nearly 120 security holes in Windows and supported software. Six of the vulnerabilities were publicly detailed already, potentially giving attackers a head start in figuring out how to exploit them in unpatched systems. More concerning, Microsoft warns that one of the flaws fixed this month is “wormable,” meaning no human interaction would be required for an attack to spread from one vulnerable Windows box to another.
Nine of the vulnerabilities fixed in this month’s Patch Tuesday received Microsoft’s “critical” rating, meaning malware or miscreants can exploit them to gain remote access to vulnerable Windows systems through no help from the user.
By all accounts, the most severe flaw addressed today is CVE-2022-21907, a critical, remote code exec
Krebs
‘Wormable’ Flaw Leads January 2022 Patch Tuesday
blogs_krebs·2022-01-11·CVSS 9.8
[CRITICAL] ‘Wormable’ Flaw Leads January 2022 Patch Tuesday
Microsoft today released updates to plug nearly 120 security holes in Windows and supported software. Six of the vulnerabilities were publicly detailed already, potentially giving attackers a head start in figuring out how to exploit them in unpatched systems. More concerning, Microsoft warns that one of the flaws fixed this month is “wormable,” meaning no human interaction would be required for an attack to spread from one vulnerable Windows box to another.
Nine of the vulnerabilities fixed in this month’s Patch Tuesday received Microsoft’s “critical” rating, meaning malware or miscreants can exploit them to gain remote access to vulnerable Windows systems through no help from the user.
By all accounts, the most severe flaw addressed today is CVE-2022-21907, a critical, remote code exec
Qualys
Microsoft & Adobe Patch Tuesday (January 2022) – Microsoft 126 Vulnerabilities with 9 Critical, Adobe 41 Vulnerabilities, 22 critical
blogs_qualys·2022-01-11·CVSS 9.0
[CRITICAL] Microsoft & Adobe Patch Tuesday (January 2022) – Microsoft 126 Vulnerabilities with 9 Critical, Adobe 41 Vulnerabilities, 22 critical
## Table of Contents
Microsoft Patch Tuesday January 2022
Adobe Patch Tuesday January 2022
Discover and Prioritize Patch Tuesday Vulnerabilities in VMDR
Respond by Patching
Patch Tuesday Dashboard
Webinar Series: This Month in Vulnerabilities and Patches
About Patch Tuesday
Contributor
## Microsoft Patch Tuesday – January 2022
Microsoft patched 126 vulnerabilities in their January 2022 Patch Tuesday release. Out of these, nine are rated as critical severity. As of this writing, none of the 126 vulnerabilities are known to be actively exploited.
Microsoft has fixed problems in their software including Remote Code Execution (RCE) vulnerabilities, privilege escalation security flaws, spoofing bugs, and Denial of Service (DoS) issues.
## Critical Microsoft Vulnerabilities Patched
Talos
Microsoft Patch Tuesday for Jan. 2022 — Snort rules and prominent vulnerabilities
blogs_talos·2022-01-11·CVSS 8.3
[HIGH] Microsoft Patch Tuesday for Jan. 2022 — Snort rules and prominent vulnerabilities
## Microsoft Patch Tuesday for Jan. 2022 — Snort rules and prominent vulnerabilities
Microsoft released its monthly security update Tuesday, disclosing 102 vulnerabilities across its large collection of hardware and software. This is the largest amount of vulnerabilities Microsoft has disclosed in a monthly security update in eight months, however, none of the issues have been exploited in the wild, according to Microsoft.
2022’s first security update features nine critical vulnerabilities, with all but one of the remaining being considered “important.” CVE-2022-21840 is one of the critical vulnerabilities, an issue in Microsoft Office that could allow an attacker to execute remote code on the targeted machine. CVE-2022-21841 , CVE-2022-21837 and CVE-2022-21842 are also remote code execu
Qualys
Microsoft & Adobe Patch Tuesday (January 2022) – Microsoft 126 Vulnerabilities with 9 Critical, Adobe 41 Vulnerabilities, 22 critical | Qualys
blogs_qualys·2022-01-11·CVSS 9.0
[CRITICAL] Microsoft & Adobe Patch Tuesday (January 2022) – Microsoft 126 Vulnerabilities with 9 Critical, Adobe 41 Vulnerabilities, 22 critical | Qualys
#### Table of Contents
- Microsoft Patch Tuesday January 2022
- Adobe Patch Tuesday January 2022
- Discover and Prioritize Patch Tuesday Vulnerabilities in VMDR
- Respond by Patching
- Patch Tuesday Dashboard
- Webinar Series: This Month in Vulnerabilities and Patches
- About Patch Tuesday
- Contributor
## Microsoft Patch Tuesday – January 2022
Microsoft patched 126 vulnerabilities in their January 2022 Patch Tuesday release. Out of these, nine are rated as critical severity. As of this writing, none of the 126 vulnerabilities are known to be actively exploited.
Microsoft has fixed problems in their software including Remote Code Execution (RCE) vulnerabilities, privilege escalation security flaws, spoofing bugs, and Denial of Service (DoS) issues.
### Critical Microsoft Vulnerabiliti
Crowdstrike
January 2022 Patch Tuesday: Updates and Analysis
blogs_crowdstrike·CVSS 7.5
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2022-01-11
Published