CVE-2021-26865
published 2021-03-11CVE-2021-26865: Windows Container Execution Agent Elevation of Privilege Vulnerability
PriorityP339high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.93%
56.6th percentile
Windows Container Execution Agent Elevation of Privilege Vulnerability
Affected
28 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_1607 | >= 10.0.0 < publication | publication |
| microsoft | windows_10_version_1809 | >= 10.0.0 < publication | publication |
| microsoft | windows_10_version_1909 | >= 10.0.0 < publication | publication |
| microsoft | windows_10_version_2004 | >= 10.0.0 < publication | publication |
| microsoft | windows_10_version_20h2 | >= 10.0.0 < publication | publication |
| microsoft | windows_server_2016 | — | — |
| microsoft | windows_server_2016 | — | — |
| microsoft | windows_server_2016 | — | — |
| microsoft | windows_server_2016 | >= 10.0.0 < publication | publication |
| microsoft | windows_server_2019 | >= 10.0.0 < publication | publication |
| microsoft | windows_server_version_2004 | >= 10.0.0 < publication | publication |
| microsoft | windows_server_version_20h2 | >= 10.0.0 < publication | publication |
| msrc | windows_10_version_1607 | — | — |
| msrc | windows_10_version_1809 | — | — |
| msrc | windows_10_version_1909 | — | — |
| msrc | windows_10_version_2004 | — | — |
| msrc | windows_10_version_20h2 | — | — |
| msrc | windows_server_2016 | — | — |
| msrc | windows_server_2019 | — | — |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvdv2.04.6MEDIUMAV:L/AC:L/Au:N/C:P/I:P/A:P
vendor_msrc8.8HIGH
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GHSA
GHSA-v4c6-vp8p-vp9p: Windows Container Execution Agent Elevation of Privilege Vulnerability This CVE ID is unique from CVE-2021-26891
ghsa_unreviewed·2022-05-24·CVSS 7.8
CVE-2021-26865 [HIGH] CWE-269 GHSA-v4c6-vp8p-vp9p: Windows Container Execution Agent Elevation of Privilege Vulnerability This CVE ID is unique from CVE-2021-26891
Windows Container Execution Agent Elevation of Privilege Vulnerability This CVE ID is unique from CVE-2021-26891.
GHSA
GHSA-frv5-pr8x-43h2: Windows Container Execution Agent Elevation of Privilege Vulnerability This CVE ID is unique from CVE-2021-26865
ghsa_unreviewed·2022-05-24·CVSS 8.8
CVE-2021-26891 [HIGH] CWE-269 GHSA-frv5-pr8x-43h2: Windows Container Execution Agent Elevation of Privilege Vulnerability This CVE ID is unique from CVE-2021-26865
Windows Container Execution Agent Elevation of Privilege Vulnerability This CVE ID is unique from CVE-2021-26865.
Project0
Who Contains the Containers? - Project Zero
project_zero·2021-04-01
CVE-2021-24096 Who Contains the Containers? - Project Zero
Posted by James Forshaw, Project Zero
This is a short blog post about a research project I conducted on Windows Server Containers that resulted in four privilege escalations which Microsoft fixed in March 2021. In the post, I describe what led to this research, my research process, and insights into what to look for if you’re researching this area.
## Windows Containers Background
Windows 10 and its server counterparts added support for application containerization. The implementation in Windows is similar in concept to Linux containers, but of course wildly different. The well-known Docker platform supports Windows containers which leads to the availability of related projects such as Kubernetes running on Windows. You can read a bit of background on Windows containers on MSDN. I’
Microsoft
Windows Container Execution Agent Elevation of Privilege Vulnerability
vendor_msrc·2021-03-09·CVSS 8.8
CVE-2021-26865 [HIGH] Windows Container Execution Agent Elevation of Privilege Vulnerability
Windows Container Execution Agent Elevation of Privilege Vulnerability
Windows Container Execution Agent: Windows Container Execution Agent
Microsoft: Microsoft
Impact: Elevation of Privilege
Exploit Status: Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely;Older Software Release:Exploitation Less Likely;DOS:N/A
Reference: https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5000822
Reference: https://support.microsoft.com/help/5000822
Reference: https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5000808
Reference: https://support.microsoft.com/help/5000808
Reference: https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5000802
Reference: https://support.microsoft.com/help/5000802
Reference: https://catalog.update.micro
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2021-03-11
Published