CVE-2023-28218
published 2023-04-11CVE-2023-28218: Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
PriorityP275high7CVSS 3.1
AVLACHPRLUINSUCHIHAH
ITWVulnCheck KEV
Exploited in the wild
EPSS
12.30%
95.7th percentile
Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
Affected
41 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | windows_10_1507 | < 10.0.10240.19869 | 10.0.10240.19869 |
| microsoft | windows_10_1607 | < 10.0.14393.5850 | 10.0.14393.5850 |
| microsoft | windows_10_1809 | < 10.0.17763.4252 | 10.0.17763.4252 |
| microsoft | windows_10_20h2 | < 10.0.19042.2846 | 10.0.19042.2846 |
| microsoft | windows_10_21h2 | < 10.0.19044.2846 | 10.0.19044.2846 |
| microsoft | windows_10_22h2 | < 10.0.19045.2846 | 10.0.19045.2846 |
| microsoft | windows_10_version_1507 | >= 10.0.10240.0 < 10.0.10240.19869 | 10.0.10240.19869 |
| microsoft | windows_10_version_1607 | >= 10.0.14393.0 < 10.0.14393.5850 | 10.0.14393.5850 |
| microsoft | windows_10_version_1809 | >= 10.0.0 < 10.0.17763.4252 | 10.0.17763.4252 |
| microsoft | windows_10_version_1809 | >= 10.0.17763.0 < 10.0.17763.4252 | 10.0.17763.4252 |
| microsoft | windows_10_version_20h2 | >= 10.0.0 < 10.0.19042.2846 | 10.0.19042.2846 |
| microsoft | windows_10_version_21h2 | >= 10.0.19043.0 < 10.0.19044.2846 | 10.0.19044.2846 |
| microsoft | windows_10_version_22h2 | >= 10.0.19045.0 < 10.0.19045.2846 | 10.0.19045.2846 |
| microsoft | windows_11_21h2 | < 10.0.22000.1817 | 10.0.22000.1817 |
| microsoft | windows_11_22h2 | < 10.0.22621.1555 | 10.0.22621.1555 |
| microsoft | windows_11_version_21h2 | >= 10.0.0 < 10.0.22000.1817 | 10.0.22000.1817 |
| microsoft | windows_11_version_22h2 | >= 10.0.22621.0 < 10.0.22621.1555 | 10.0.22621.1555 |
| microsoft | windows_server_2008 | — | — |
| microsoft | windows_server_2008_r2_service_pack_1 | >= 6.1.7601.0 < 6.1.7601.26466 | 6.1.7601.26466 |
| microsoft | windows_server_2008_service_pack_2 | >= 6.0.6003.0 < 6.0.6003.22015 | 6.0.6003.22015 |
| microsoft | windows_server_2012 | — | — |
| microsoft | windows_server_2012 | >= 6.2.9200.0 < 6.2.9200.24216 | 6.2.9200.24216 |
| microsoft | windows_server_2012_r2 | >= 6.3.9600.0 < 6.3.9600.20919 | 6.3.9600.20919 |
| microsoft | windows_server_2016 | >= 10.0.14393.0 < 10.0.14393.5850 | 10.0.14393.5850 |
| microsoft | windows_server_2019 | >= 10.0.17763.0 < 10.0.17763.4252 | 10.0.17763.4252 |
Detection & IOCsextracted from sources · hover to see the quote
- →CVE-2023-28218 exploitation requires winning a race condition in the Windows Ancillary Function Driver for WinSock (afd.sys); monitor for repeated rapid syscall patterns targeting AFD that may indicate race condition exploitation attempts. ↗
- →Successful exploitation of CVE-2023-28218 results in SYSTEM-level privilege escalation; alert on unexpected SYSTEM token acquisition by non-privileged processes interacting with the WinSock AFD driver. ↗
- →Microsoft rates CVE-2023-28218 as 'Exploitation More Likely' for latest software releases; prioritize detection and patching on up-to-date Windows systems running the AFD driver. ↗
- ·CVE-2023-28218 has not been publicly exploited or publicly disclosed as of the advisory date; no in-the-wild exploitation indicators are available from these sources. ↗
CVSS provenance
nvdv3.17.0HIGHCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
vulncheck7.0HIGH
vendor_msrc7.0HIGH
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GHSA
GHSA-8xvr-whx3-qc75: Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
ghsa_unreviewed·2023-04-11
CVE-2023-28218 [HIGH] GHSA-8xvr-whx3-qc75: Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
VulnCheck
Microsoft Windows Heap-based Buffer Overflow
vulncheck·2023·CVSS 7.0
CVE-2023-28218 [HIGH] Microsoft Windows Heap-based Buffer Overflow
Microsoft Windows Heap-based Buffer Overflow
Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
Affected: Microsoft Windows
Required Action: Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.
Exploitation References: https://catalyst.prodaft.com/public/report/modus-operandi-of-ruthless-mantis/overview
Microsoft
Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
vendor_msrc·2023-04-11·CVSS 7.0
CVE-2023-28218 [HIGH] CWE-122 Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability
FAQ: According to the CVSS metric, the attack complexity is high (AC:H). What does that mean for this vulnerability?
Successful exploitation of this vulnerability requires an attacker to win a race condition.
FAQ: What privileges could be gained by an attacker who successfully exploited this vulnerability?
An attacker who successfully exploited this vulnerability could gain SYSTEM privileges.
Windows Ancillary Function Driver for WinSock: Windows Ancillary Function Driver for WinSock
Microsoft: Microsoft
Customer Action Required: Yes
Impact: Elevation of Privilege
Exploit Status: Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation More Likely;Older Software Release:Exploitation Les
No detection rules found.
No public exploits indexed.
2023-04-11
Published
Exploited in the wild