CVE-2022-21837
published 2022-01-11CVE-2022-21837: Microsoft SharePoint Server Remote Code Execution Vulnerability
PriorityP356high8.8CVSS 3.1
AVNACLPRLUINSUCHIHAH
EPSS
2.84%
85.1th percentile
Microsoft SharePoint Server Remote Code Execution Vulnerability
Affected
11 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| 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 | sharepoint_foundation | — | — |
| microsoft | sharepoint_server | — | — |
| microsoft | sharepoint_server | — | — |
| msrc | microsoft_sharepoint_enterprise_server_2016 | — | — |
| msrc | microsoft_sharepoint_foundation_2013_service_pack_1 | — | — |
| msrc | microsoft_sharepoint_server_2019 | — | — |
| msrc | microsoft_sharepoint_server_subscription_edition | — | — |
Detection & IOCsextracted from sources · hover to see the quote
snort↗
SIDs: 40689, 40690, 58859, 58860, 58866 - 58869 and 58870 - 58875
- →Exploitation requires an authenticated attacker with domain access performing RCE on the SharePoint server to elevate to SharePoint admin; monitor for unexpected privilege escalation to SharePoint admin role. ↗
- ·As of the January 2022 Patch Tuesday disclosure, the vulnerability had not been exploited in the wild and was rated 'Exploitation Less Likely' for both latest and older software releases. ↗
- ·None of the 126 January 2022 Patch Tuesday vulnerabilities, including CVE-2022-21837, were known to be actively exploited at time of disclosure. ↗
CVSS provenance
nvdv3.18.8HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv2.09.0CRITICALAV:N/AC:L/Au:S/C:C/I:C/A:C
vendor_msrc8.3HIGH
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Microsoft
Microsoft SharePoint Server Remote Code Execution Vulnerability
vendor_msrc·2022-01-11·CVSS 8.3
CVE-2022-21837 [HIGH] Microsoft SharePoint Server Remote Code Execution Vulnerability
Microsoft SharePoint Server Remote Code Execution Vulnerability
FAQ: How could an attacker exploit the vulnerability?
An authenticated attacker with access to the domain could perform remote code execution on the SharePoint server to elevate themselves to SharePoint admin.
Microsoft Office SharePoint: Microsoft Office SharePoint
Microsoft: Microsoft
Customer Action Required: Yes
Impact: Remote Code Execution
Exploit Status: Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely;Older Software Release:Exploitation Less Likely
Reference: https://www.microsoft.com/download/details.aspx?familyid=d6f3bfae-cb60-47b6-8c1a-d60c96c3f24a
Reference: https://support.microsoft.com/help/5002113
Reference: https://www.microsoft.com/download/details.aspx?familyid=b5de
GHSA
GHSA-h7jv-6w8r-ccf2: Microsoft SharePoint Server Remote Code Execution Vulnerability
ghsa_unreviewed·2022-01-12
CVE-2022-21837 [HIGH] CWE-94 GHSA-h7jv-6w8r-ccf2: Microsoft SharePoint Server Remote Code Execution Vulnerability
Microsoft SharePoint Server 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
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
2022-01-11
Published