Microsoft 漏洞更新可能导致 Dell Encryption 中的通信故障

Summary: Microsoft 漏洞更新可能会导致 Dell Encryption(以前称为 Dell Data Protection |)中的通信故障加密)。

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

受影响的产品:

  • Dell Encryption
  • Dell Data Protection | Encryption

Cause

在 Microsoft 发送安全更新以解决漏洞时,我们看到这些更新会影响 Dell Encryption 通信。在允许在 Dell Security Management Server(以前称为 Dell Data Protection |)上使用 Diffie-Hellman 导出 (DHE) 加密套件的环境中Enterprise Edition) 服务器,安装 Microsoft 更新后可能会出现以下行为:

在此示例中,激活失败。在护罩日志中,有以下消息:

[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)

端点可以 ping 服务器,并成功将 telnet 连接到端口。即使是某些浏览器(如 Chrome)也可以访问网站,而 IE 无法访问。

SChannel 组件的 Windows 系统事件日志中存在条目:


- 


36888
0
2
0
0
0x8000000000000000

19178


System
XXXXXXXXXXXXXXX.com



- 

40
808


Resolution

提醒:将服务器升级到 v9.4.1 可解决此问题。

如果看到这些行为,请检查哪些 Microsoft 更新已应用于端点。已看到导致问题的两个更新包括:

  • Microsoft 安全更新 MS15-055/KB3061518
  • Microsoft 安全更新KB3161608

其中一项更新将端点上的最小 DHE 密钥长度从 512 位更改为 1024 位。默认情况下,Dell Security Management Server 允许使用 768 位 DHE 组,从而在应用这些更新后导致 SSL 或 TLS 握手失败。要恢复端点以允许使用最小 512 位 DHE 密钥长度,您必须更新端点上的注册表。在注册表中找到以下子项:

警告:下一步是 Windows 注册表编辑:
  1. HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\KeyExchangeAlgorithms\Diffie-Hellman
  2. 然后添加 DWord ClientMinKeyBitLength 并将值设置为 00000200 。

要联系支持部门,请参阅 Dell Data Security 国际支持电话号码
转至 TechDirect,在线生成技术支持请求。
要获得更多见解和资源,请加入戴尔安全社区论坛

Affected Products

Dell Encryption
Article Properties
Article Number: 000126675
Article Type: Solution
Last Modified: 05 Jul 2023
Version:  9
Find answers to your questions from other Dell users
Support Services
Check if your device is covered by Support Services.