CVE-2021-43215
published 2021-12-15CVE-2021-43215: iSNS Server Memory Corruption Vulnerability Can Lead to Remote Code Execution
PriorityP355critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
2.71%
84.3th percentile
iSNS Server Memory Corruption Vulnerability Can Lead to Remote Code Execution
Affected
49 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10 | — | — |
| microsoft | windows_10_version_1507 | >= 10.0.0 < 10.0.10240.19145 | 10.0.10240.19145 |
| microsoft | windows_10_version_1607 | >= 10.0.0 < 10.0.14393.4825 | 10.0.14393.4825 |
| microsoft | windows_10_version_1809 | >= 10.0.0 < 10.0.17763.2366 | 10.0.17763.2366 |
| microsoft | windows_10_version_1909 | >= 10.0.0 < 10.0.18363.1977 | 10.0.18363.1977 |
| microsoft | windows_10_version_2004 | >= 10.0.0 < 10.0.19041.1415 | 10.0.19041.1415 |
| microsoft | windows_10_version_20h2 | >= 10.0.0 < 10.0.19042.1415 | 10.0.19042.1415 |
| microsoft | windows_10_version_21h1 | >= 10.0.0 < 10.0.19043.1415 | 10.0.19043.1415 |
| microsoft | windows_10_version_21h2 | >= 10.0.0 < 10.0.19044.1415 | 10.0.19044.1415 |
| microsoft | windows_7 | >= 6.1.0 < 6.1.7601.25796 | 6.1.7601.25796 |
| microsoft | windows_7_service_pack_1 | >= 6.1.0 < 6.1.7601.25796 | 6.1.7601.25796 |
| microsoft | windows_8.1 | >= 6.3.0 < 6.3.9600.20207 | 6.3.9600.20207 |
| microsoft | windows_server | — | — |
| microsoft | windows_server | — | — |
| microsoft | windows_server_2008 | — | — |
| microsoft | windows_server_2008_r2_service_pack_1 | >= 6.0.0 < 6.1.7601.25796 | 6.1.7601.25796 |
| microsoft | windows_server_2008_r2_service_pack_1 | >= 6.1.0 < 6.1.7601.25796 | 6.1.7601.25796 |
| microsoft | windows_server_2008_service_pack_2 | >= 6.0.0 < 6.0.6003.21309 | 6.0.6003.21309 |
| microsoft | windows_server_2012 | — | — |
| microsoft | windows_server_2012 | >= 6.2.0 < 6.2.9200.23545 | 6.2.9200.23545 |
CVSS provenance
nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv2.06.8MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P
vendor_msrc9.8CRITICAL
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GHSA
GHSA-f369-x9m4-pmxp: iSNS Server Memory Corruption Vulnerability Can Lead to Remote Code Execution
ghsa_unreviewed·2021-12-16
CVE-2021-43215 [CRITICAL] CWE-94 GHSA-f369-x9m4-pmxp: iSNS Server Memory Corruption Vulnerability Can Lead to Remote Code Execution
iSNS Server Memory Corruption Vulnerability Can Lead to Remote Code Execution
Microsoft
iSNS Server Memory Corruption Vulnerability Can Lead to Remote Code Execution
vendor_msrc·2021-12-14·CVSS 9.8
CVE-2021-43215 [CRITICAL] iSNS Server Memory Corruption Vulnerability Can Lead to Remote Code Execution
iSNS Server Memory Corruption Vulnerability Can Lead to Remote Code Execution
FAQ: How could an attacker exploit this vulnerability?
An attacker could send a specially crafted request to the Internet Storage Name Service (iSNS) server, which could result in remote code execution.
FAQ: What is Windows iSNS?
The Internet Storage Name Service (iSNS) protocol is used for interaction between iSNS servers and iSNS clients. iSNS manages an Internet Storage Name Service (iSNS) server, providing a registration function to allow all entities in a storage network to register and query the iSNS database.
Is Windows iSNS installed by default?
No. See iSNS Server Overview for more information about iSNS.
Internet Storage Name Service: Internet Storage Name Service
Microsoft: Microsoft
Impact: Remot
No detection rules found.
No public exploits indexed.
Qualys
Microsoft & Adobe Patch Tuesday (December 2021) – Microsoft 83 Vulnerabilities With 7 Critical, 1 Actively Exploited. Adobe 60 Vulnerabilities, 28 Critical.
blogs_qualys·2021-12-14·CVSS 9.8
[CRITICAL] Microsoft & Adobe Patch Tuesday (December 2021) – Microsoft 83 Vulnerabilities With 7 Critical, 1 Actively Exploited. Adobe 60 Vulnerabilities, 28 Critical.
## Table of Contents
Microsoft Patch Tuesday December 2021
Microsoft Vulnerabilities To Be Prioritized and Patched Quickly.
Adobe Patch Tuesday December 2021
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 – December 2021
Microsoft patched 83 vulnerabilities in their December 2021 Patch Tuesday release, of which seven are rated as critical severity. This month’s release includes one Zero Day known to be actively exploited.
Products impacted by Microsoft’s December security update include Microsoft Office, Microsoft PowerShell, the Chromium-based Edge browser, the Windows Kernel, Print Spooler, and Remote D
Tenable
Microsoft’s December 2021 Patch Tuesday Addresses 67 CVEs (CVE-2021-43890)
blogs_tenable·2021-12-14·CVSS 7.1
[HIGH] Microsoft’s December 2021 Patch Tuesday Addresses 67 CVEs (CVE-2021-43890)
## Cloud Exposure
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## Vulnerability Exposure
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## AI Exposure
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## OT/IoT Exposure
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## Identity Exposure
Tenable Identity Exposure Request a demo
## Business needs
Active Directory
AI Security Posture Management (AI-SPM)
AWS security
Azure security
Cloud Security Posture Man
Qualys
Microsoft & Adobe Patch Tuesday (December 2021) – Microsoft 83 Vulnerabilities With 7 Critical, 1 Actively Exploited. Adobe 60 Vulnerabilities, 28 Critical. | Qualys
blogs_qualys·2021-12-14·CVSS 9.8
[CRITICAL] Microsoft & Adobe Patch Tuesday (December 2021) – Microsoft 83 Vulnerabilities With 7 Critical, 1 Actively Exploited. Adobe 60 Vulnerabilities, 28 Critical. | Qualys
#### Table of Contents
- Microsoft Patch Tuesday December 2021
- Microsoft Vulnerabilities To Be Prioritized and Patched Quickly.
- Adobe Patch Tuesday December 2021
- 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 – December 2021
Microsoft patched 83 vulnerabilities in their December 2021 Patch Tuesday release, of which seven are rated as critical severity. This month’s release includes one Zero Day known to be actively exploited.
Products impacted by Microsoft’s December security update include Microsoft Office, Microsoft PowerShell, the Chromium-based Edge browser, the Windows Kernel, Print Spooler,
Talos
Threat Source Newsletter (Dec. 16, 2021)
blogs_talos·2021-12-10
Threat Source Newsletter (Dec. 16, 2021)
## Threat Source Newsletter (Dec. 16, 2021)
Good afternoon, Talos readers.
I'm just going to cut to the chase since I know all anyone wants to read about is Log4J. For the latest Talos research, continually check back on our blog post here . Above is the live stream we recorded Monday morning updating everyone on the situation, but of course, a lot has already changed since then. Which is why Beers with Talos will be returning for a live recording Friday at noon ET . You can join us on any of our social media platforms or over on our YouTube page .
This will be the last Threat Source newsletter of 2021 as we head into the holiday break. We hope everyone is able to put Log4J behind them at least for a few days and enjoy some quality time with friends and family.
## Cybersecurity week in
Talos
Threat Source Newsletter (Dec. 16, 2021)
blogs_talos·2021-12-10
Threat Source Newsletter (Dec. 16, 2021)
Good afternoon, Talos readers.
I'm just going to cut to the chase since I know all anyone wants to read about is Log4J. For the latest Talos research, continually check back on our blog post here. Above is the live stream we recorded Monday morning updating everyone on the situation, but of course, a lot has already changed since then. Which is why Beers with Talos will be returning for a live recording Friday at noon ET. You can join us on any of our social media platforms or over on our YouTube page.
This will be the last Threat Source newsletter of 2021 as we head into the holiday break. We hope everyone is able to put Log4J behind them at least for a few days and enjoy some quality time with friends and family.
## Cybersecurity week in review
- The Log4j vulnerability made national
Crowdstrike
December 2021 Patch Tuesday: Updates and Analysis
blogs_crowdstrike·CVSS 7.5
CVE-2026-20929 [HIGH] December 2021 Patch Tuesday: Updates and Analysis
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2021-12-15
Published