Microsoft 漏洞更新可能導致 Dell 加密中的通訊失敗

Summary: Microsoft 漏洞更新可能導致 Dell Encryption (之前稱為 Dell Data Protection |加密)。

This article applies to This article does not apply to This article is not tied to any specific product. Not all product versions are identified in this article.

Symptoms

受影響的產品:

  • Dell Encryption
  • Dell Data Protection | Encryption

Cause

Microsoft 傳送安全性更新以解決漏洞,我們看到這些更新會影響 Dell 加密通訊。在 Dell Security Management Server (先前稱為 Dell Data Protection) 允許使用 Diffie-Hellman Export (DHE) 加密套件的環境中Enterprise Edition) 伺服器安裝 Microsoft 更新後可能會出現下列行為:

在此範例中,啟動失敗。在護蓋記錄中,有下列訊息:

[07.08.16 11:54:38:824 CredantServerIn: 211] [ERROR] SSL request failed.. HTTP error An error occurred in the secure channel support [MS ec=12157].
[07.08.16 11:54:38:824 CredantServerIn: 211] [ERROR] HTTP error. HTTP error A security error occurred [MS ec=12175].

[07.08.16 11:54:38:864 XmlRpcActivate: 128] Activating user...
[07.08.16 11:54:38:924 XmlRpcActivate: 415] SSL Failure status code. HTTP error(-2147483648) -
[07.08.16 11:54:38:934 XmlRpcActivate: 415] SSL request failed.. HTTP error(12157) - An error occurred in the secure channel support
[07.08.16 11:54:38:934 XmlRpcActivate: 415] HTTP error. HTTP error(12175) - A security error occurred
[07.08.16 11:54:38:934 XmlRpcActivate: 148] Activation request failed [code:0x2f8f]:
[07.08.16 11:54:38:934 Activator: 709] [SUPPORT] [W] Activation - Unable to activate new user XXXXXXX [error = 0x2f8f]
[07.08.16 11:54:38:934 Activator: 711] Activation - Verify that the CMG Shield is properly installed.
[07.08.16 11:54:38:934 Activator: 716] Activation - Verify network connectivity to the CMG Server at "XXXXXXX" and CMG Device Server at
[07.08.16 11:54:38:934 ] - Device Server Connection error (12175)

端點可以 ping伺服器,並成功將 telnet 連線至埠。甚至某些瀏覽器 (例如 Chrome) 也能前往網站,而 IE 則無法存取。

SChannel 元件的 Windows 系統事件記錄中存在專案:


- 


36888
0
2
0
0
0x8000000000000000

19178


System
XXXXXXXXXXXXXXX.com



- 

40
808


Resolution

注意:將伺服器升級至 v9.4.1 可解決此問題。

如果出現這些行為,請檢查哪些 Microsoft 更新已套用至端點。出現問題的兩項更新如下:

  • Microsoft 安全性更新 MS15-055/KB3061518
  • Microsoft 安全性更新KB3161608

其中一項更新會將最小 DHE 金鑰長度從端點的 512 位變更為 1024 位。根據預設,Dell Security Management Server 允許使用 768 位 DHE 群組,導致 SSL 或 TLS 交握在套用更新後失敗。若要還原端點以允許使用最少 512 位 DHE 金鑰長度,您必須在端點更新登錄檔。在登錄中找到下列子鍵:

警告:下一個步驟是 Windows 登錄編輯:
  1. HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\KeyExchangeAlgorithms\Diffie-Hellman
  2. 接著新增 DWord ClientMinKeyBitLength,並將值設為00000200。

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Affected Products

Dell Encryption
Article Properties
Article Number: 000126675
Article Type: Solution
Last Modified: 05 Jul 2023
Version:  9
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