Encrypt communication with SSL/TLS

April 17, 2023

ID 174316

To fix vulnerabilities on your organization's corporate network, you can enable traffic encryption using SSL/TLS. You can enable SSL/TLS on Administration Server and iOS MDM Server. Kaspersky Security Center supports SSL v3 as well as Transport Layer Security (TLS v1.0, 1.1, and 1.2). You can select encryption protocol and cipher suites. Kaspersky Security Center uses a self-signed certificates. Additional configuration of the iOS devices is not required. You can also use your own certificates. Kaspersky specialists recommend to use certificates issued by trusted certificate authorities.

Administration Server

To configure allowed encryption protocols and cipher suites on the Administration Server:

  1. Use the klscflag utility to configure allowed encryption protocols and cipher suites on the Administration Server. Enter the following command at the Windows command prompt, using administrator rights:

    klscflag -fset -pv ".core/.independent" -s Transport -n SrvUseStrictSslSettings -v <value> -t d

    Specify the <value> parameter of the command:

    • 0—All of the supported encryption protocols and cipher suites are enabled
    • 1—SSL v2 is disabled

      Cipher suites:

      • AES256-GCM-SHA384
      • AES256-SHA256
      • AES256-SHA
      • CAMELLIA256-SHA
      • AES128-GCM-SHA256
      • AES128-SHA256
      • AES128-SHA
      • SEED-SHA
      • CAMELLIA128-SHA
      • IDEA-CBC-SHA
      • RC4-SHA
      • RC4-MD5
      • DES-CBC3-SHA
    • 2—SSL v2 and SSL v3 are disabled (default value)

      Cipher suites:

      • AES256-GCM-SHA384
      • AES256-SHA256
      • AES256-SHA
      • CAMELLIA256-SHA
      • AES128-GCM-SHA256
      • AES128-SHA256
      • AES128-SHA
      • SEED-SHA
      • CAMELLIA128-SHA
      • IDEA-CBC-SHA
      • RC4-SHA
      • RC4-MD5
      • DES-CBC3-SHA
    • 3—only TLS v1.2.

      Cipher suites:

      • AES256-GCM-SHA384
      • AES256-SHA256
      • AES256-SHA
      • CAMELLIA256-SHA
      • AES128-GCM-SHA256
      • AES128-SHA256
      • AES128-SHA
      • CAMELLIA128-SHA
  2. Restart the following Kaspersky Security Center 13.2 services:
    • Administration Server
    • Web Server
    • Activation Proxy

iOS MDM Server

The connection between the iOS devices and the iOS MDM Server is encrypted default.

To configure allowed encryption protocols and cipher suites on the iOS MDM Server:

  1. Open the system registry of the client device that has iOS MDM Server installed (for example, locally, using the regedit command in the StartRun menu).
  2. Go to the following hive:
    • For 32-bit systems:

      HKEY_LOCAL_MACHINE\SOFTWARE\KasperskyLab\Components\34\Connectors\KLIOSMDM\1.0.0.0\Conset

    • For 64-bit systems:

      HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\KasperskyLab\Components\34\Connectors\KLIOSMDM\1.0.0.0\Conset

  3. Create a key with the StrictSslSettings name.
  4. Specify DWORD as the key type.
  5. Set the key value:
    • 2—SSL v3 is disabled (TLS 1.0, TLS 1.1, TLS 1.2 are allowed)
    • 3—only TLS 1.2 (default value)
  6. Restart the Kaspersky Security Center 13.2 iOS MDM Server service.

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