CVE-2021-40456
published 2021-10-13CVE-2021-40456: Windows AD FS Security Feature Bypass Vulnerability
PriorityP344high7.5CVSS 3.1
AVNACLPRNUINSUCHINAN
EPSS
2.21%
80.6th percentile
Windows AD FS Security Feature Bypass Vulnerability
Affected
9 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | windows_server | — | — |
| microsoft | windows_server_2019 | >= 10.0.0 < 10.0.17763.2237 | 10.0.17763.2237 |
| microsoft | windows_server_2022 | >= 10.0.0 < 10.0.20348.288 | 10.0.20348.288 |
| microsoft | windows_server_version_2004 | >= 10.0.0 < 10.0.19041.1288 | 10.0.19041.1288 |
| microsoft | windows_server_version_20h2 | >= 10.0.0 < 10.0.19042.1288 | 10.0.19042.1288 |
| msrc | windows_server_2019 | — | — |
| msrc | windows_server_2022 | — | — |
| msrc | windows_server_version_2004 | — | — |
| msrc | windows_server_version_20h2 | — | — |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:N
vendor_msrc5.3MEDIUM
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Microsoft
Windows AD FS Security Feature Bypass Vulnerability
vendor_msrc·2021-10-12·CVSS 5.3
CVE-2021-40456 [MEDIUM] Windows AD FS Security Feature Bypass Vulnerability
Windows AD FS Security Feature Bypass Vulnerability
FAQ: What kind of security feature could be bypassed by successfully exploiting this vulnerability?
This vulnerability could allow an attacker to bypass ADFS BannedIPList entries for WS-Trust workflows.
Role: Windows AD FS Server: Role: Windows AD FS Server
Microsoft: Microsoft
Impact: Security Feature Bypass
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=KB5006672
Reference: https://support.microsoft.com/help/5006672
Reference: https://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5006699
Reference: https://catalog.update.microsoft.com/v7/site/Se
GHSA
GHSA-j5xg-6v4g-89vw: Windows AD FS Security Feature Bypass Vulnerability
ghsa_unreviewed·2022-05-24
CVE-2021-40456 [HIGH] CWE-863 GHSA-j5xg-6v4g-89vw: Windows AD FS Security Feature Bypass Vulnerability
Windows AD FS Security Feature Bypass Vulnerability
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2021-10-13
Published