CVE-2018-8340
published 2018-08-15CVE-2018-8340: A security feature bypass vulnerability exists when Active Directory Federation Services (AD FS) improperly handles multi-factor authentication requests, aka…
PriorityP340medium6.5CVSS 3.0
AVNACLPRLUINSUCHINAN
EPSS
7.58%
93.9th percentile
A security feature bypass vulnerability exists when Active Directory Federation Services (AD FS) improperly handles multi-factor authentication requests, aka "AD FS Security Feature Bypass Vulnerability." This affects Windows Server 2016, Windows Server 2012 R2, Windows 10 Servers.
Affected
11 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| microsoft | windows_10_servers | — | — |
| microsoft | windows_10_servers | — | — |
| microsoft | windows_server_2012 | — | — |
| microsoft | windows_server_2012_r2 | — | — |
| microsoft | windows_server_2016 | — | — |
| microsoft | windows_server_2016 | — | — |
| microsoft | windows_server_2016 | — | — |
| msrc | windows_server_2012_r2 | — | — |
| msrc | windows_server_2016 | — | — |
| msrc | windows_server_version_1709 | — | — |
| msrc | windows_server_version_1803 | — | — |
CVSS provenance
nvdv3.06.5MEDIUMCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
nvdv2.04.0MEDIUMAV:N/AC:L/Au:S/C:P/I:N/A:N
vendor_msrc6.5MEDIUM
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GHSA
GHSA-4rgc-rj2m-g9gr: A security feature bypass vulnerability exists when Active Directory Federation Services (AD FS) improperly handles multi-factor authentication reques
ghsa_unreviewed·2022-05-13
CVE-2018-8340 [MEDIUM] GHSA-4rgc-rj2m-g9gr: A security feature bypass vulnerability exists when Active Directory Federation Services (AD FS) improperly handles multi-factor authentication reques
A security feature bypass vulnerability exists when Active Directory Federation Services (AD FS) improperly handles multi-factor authentication requests, aka "AD FS Security Feature Bypass Vulnerability." This affects Windows Server 2016, Windows Server 2012 R2, Windows 10 Servers.
Microsoft
ADFS Security Feature Bypass Vulnerability
vendor_msrc·2018-08-14·CVSS 6.5
CVE-2018-8340 [MEDIUM] ADFS Security Feature Bypass Vulnerability
ADFS Security Feature Bypass Vulnerability
Description: A security feature bypass vulnerability exists when Active Directory Federation Services (ADFS) improperly handles multi-factor authentication requests.
To exploit this vulnerability, an attacker could send a specially crafted authentication request. An attacker who successfully exploited this vulnerability could bypass some, but not all, of the authentication factors.
This security update corrects how ADFS handles multi-factor authentication requests.
Windows Authentication Methods: Windows Authentication Methods
Impact: Security Feature Bypass
Exploit Status: Publicly Disclosed:No;Exploited:No;Latest Software Release:Exploitation Less Likely;Older Software Release:Exploitation Less Likely
Reference: https://catalog.update.micro
No detection rules found.
No public exploits indexed.
Talos
Microsoft Tuesday August 2018
blogs_talos·2018-08-14·CVSS 9.8
[CRITICAL] Microsoft Tuesday August 2018
## Microsoft Tuesday August 2018
Microsoft released its monthly set of security advisories today for vulnerabilities that have been identified and addressed in various products. This month's advisory release addresses 62 new vulnerabilities, 20 of which are rated “critical,” 38 that are rated “important,” one that is rated moderate and one that is rated as low severity. These vulnerabilities impact Windows Operating System, Edge and Internet Explorer, along with several other products.
In addition to the 60 vulnerabilities referenced above, Microsoft has also released a critical update advisory, ADV180020 which addresses the vulnerabilities described in the Adobe Flash Security Bulletin APSB18-25.
## Critical Vulnerabilities
This month, Microsoft is addressing 20 vulnerabilities that a
Talos
Microsoft Tuesday August 2018
blogs_talos·2018-08-14·CVSS 9.8
[CRITICAL] Microsoft Tuesday August 2018
Microsoft released its monthly set of security advisories today for vulnerabilities that have been identified and addressed in various products. This month's advisory release addresses 62 new vulnerabilities, 20 of which are rated “critical,” 38 that are rated “important,” one that is rated moderate and one that is rated as low severity. These vulnerabilities impact Windows Operating System, Edge and Internet Explorer, along with several other products.
In addition to the 60 vulnerabilities referenced above, Microsoft has also released a critical update advisory, ADV180020 which addresses the vulnerabilities described in the Adobe Flash Security Bulletin APSB18-25.
### Critical Vulnerabilities
This month, Microsoft is addressing 20 vulnerabilities that are rated "critical." Talos believ
http://www.securityfocus.com/bid/105029http://www.securitytracker.com/id/1041474https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8340http://www.securityfocus.com/bid/105029http://www.securitytracker.com/id/1041474https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8340
2018-08-15
Published