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- Microsoft security advisory: Update for disabling RC4
RC4 is not turned off by default for all applications Applications that call in to SChannel directly will continue to use RC4 unless they opt in to the security options Applications that use SChannel can block RC4 cipher suites for their connections by passing the SCH_USE_STRONG_CRYPTO flag to SChannel in the SCHANNEL_CRED structure
- RC4 cipher is no longer supported in Internet Explorer 11 or Microsoft . . .
There is consensus across the industry that the RC4 cipher is no longer cryptographically secure, and therefore RC4 support is being removed with this update With this change, Microsoft Edge and Internet Explorer 11 are aligned with the most recent versions of Google Chrome and Mozilla Firefox
- KB5021130: How to manage the Netlogon protocol changes related to CVE . . .
It will only reject Netlogon clients if they do RPC signing instead of RPC Sealing Rejection of RC4 Netlogon clients is based on the “RejectMd5Clients” registry key available to Windows Server 2008 R2 and later Windows Domain Controllers The enforcement phase for this update does not change the “RejectMd5Clients” value
- RC4 pre-authentication failure for the Network Service account in . . .
You set the default authentication type for pre-authentication to RC4 Note When the following registry value is set to 0x17, RC4 is used as the default authentication type for pre-authentication: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Lsa\Kerberos\Parameters\DefaultEncryptionType You use the Network Service account to run a service
- FIX: TN3270 Server service fails to start when RC4 encryption is . . .
You disable RC4 encryption to improve security according to the recommendations in the following TechNet blog post: Security Advisory 2868725: Recommendation to disable RC4 You configure the TN3270 Server service, which is included with Microsoft Host Integration Server 2013, to use TLS SSL encryption
- Microsoft 資訊安全諮詢：停用 RC4 的更新 - Microsoft 支援服務
不過，這個登錄設定也可以用來停用新版 Windows 的 RC4。 不管其他方支援的加密為何而不想使用 RC4 的用戶端和伺服器，可以設定下列登錄機碼，完全停用 RC4 加密套件。在這種方式下，任何伺服器或用戶端如果想與必須使用 RC4 的用戶端和伺服器交談，將無法連線。
- KB5021131: How to manage the Kerberos protocol changes related to CVE . . .
The Windows updates released on or after November 8, 2022 address security bypass and elevation of privilege vulnerability with Authentication Negotiation by using weak RC4-HMAC negotiation This update will set AES as the default encryption type for session keys on accounts that are not marked with a default encryption type already
- Le chiffrement RC4 n’est plus pris en charge dans Internet Explorer 11 . . .
À propos de cette mise à jour Il existe un consensus dans l’industrie pour dire que le chiffrement RC4 n’est plus sécurisé par chiffrement, et que la prise en charge de RC4 est donc supprimée avec cette mise à jour Avec cette modification, Microsoft Edge et Internet Explorer 11 sont alignés sur les versions les plus récentes de Google Chrome et Mozilla Firefox
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