CVE-2019-18339 - Missing Authentication for Critical Function

Severity

98%

Complexity

39%

Confidentiality

98%

A vulnerability has been identified in SiNVR 3 Central Control Server (CCS) (all versions), SiNVR 3 Video Server (all versions). The HTTP service (default port 5401/tcp) of the SiNVR 3 Video Server contains an authentication bypass vulnerability, even when properly configured with enforced authentication. A remote attacker with network access to the Video Server could exploit this vulnerability to read the SiNVR users database, including the passwords of all users in obfuscated cleartext.

A vulnerability has been identified in SiNVR 3 Central Control Server (CCS) (all versions), SiNVR 3 Video Server (all versions). The HTTP service (default port 5401/tcp) of the SiNVR 3 Video Server contains an authentication bypass vulnerability, even when properly configured with enforced authentication. A remote attacker with network access to the Video Server could exploit this vulnerability to read the SiNVR users database, including the passwords of all users in obfuscated cleartext.

CVSS 3.1 Base Score 9.8. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).

CVSS 2.0 Base Score 7.5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (AV:N/AC:L/Au:N/C:P/I:P/A:P).

Demo Examples

Missing Authentication for Critical Function

CWE-306

In the following Java example the method createBankAccount is used to create a BankAccount object for a bank management application.


               
}
return account;

However, there is no authentication mechanism to ensure that the user creating this bank account object has the authority to create new bank accounts. Some authentication mechanisms should be used to verify that the user has the authority to create bank account objects.

The following Java code includes a boolean variable and method for authenticating a user. If the user has not been authenticated then the createBankAccount will not create the bank account object.


               
}// authenticate user,// if user is authenticated then set variable to true// otherwise set variable to false
...
return account;
account.setBalance(balance);

Overview

Type

Siemens SiNVR 3

First reported 5 years ago

2019-12-12 19:15:00

Last updated 5 years ago

2019-12-18 00:10:00

Affected Software

Siemens SiNVR 3 Central Control Server

Siemens SiNVR 3 Video Server

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