JavaScript is not currently enabled, but is required for full CodeSonar manual search and browse functionality.
If you are viewing this file in your hub's Web GUI, enable JavaScript in your browser: you will also need it for GUI functionality.
If you opened this file directly from disk, your browser may be directly suppressing JavaScript functionality: certain browsers perform this suppression on local files (but not files delivered by web servers) for security reasons.
| CodeSonar® 9.2p0 | CONFIDENTIAL | CodeSecure Inc |
An occurrence or use of a hardcoded IP address or URL/URI.
Warning locations for this warning class depend on the setting of CSHARP_ANALYSIS_PEDANTIC_MODE.
| CSHARP_ANALYSIS_PEDANTIC_MODE=Yes | A warning is issued when a method that takes a host/hostname
parameter is passed a hardcoded value that matches IP address or
URI/URL format. A warning is not issued for a hardcoded string that matches IP address format unless there is evidence that the string is used as a host/hostname parameter. |
|---|---|
| CSHARP_ANALYSIS_PEDANTIC_MODE=No | A warning is issued for each string literal that that matches
IP address or URI/URL format. There is no requirement that the string be used in a specific context, or even that it be used at all. |
Having a hardcoded IP address is considered a bad practice. It can lead to several problems:
Some security protocols are now considered deprecated and unsafe and so, they must not be used.
| Class Name | Hardcoded IP Address (C#) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Significance | security | ||||||||||||
| Mnemonic | CSHARP.HARDCODED.IP | ||||||||||||
| Categories |
|
||||||||||||
| Availability | Available for C# only. |
||||||||||||
| Enabling | Checks for this warning class are
disabled by default. To enable them, add the following WARNING_FILTER
rule to the project configuration file.
WARNING_FILTER += allow class="Hardcoded IP Address (C#)" |
Japanese (ja)
using System;
using System.Net;
namespace HardCodedIPAddressExamples
{
public class HardCodedIPAddress
{
public string http_IPv6;
public void HardCoded_IP() {
http_IPv6 = "http://[FEDC:BA98:7654:3210:FEDC:BA98:7654:3210]:80/index.html"; // "Hardcoded IP Address (C#)" warning always issued here
string IPv6 = "[FEDC:BA98:7654:3210:FEDC:BA98:7654:3210]"; // "Hardcoded IP Address (C#)" warning issued here when CSHARP_ANALYSIS_PEDANTIC_MODE=Yes
string broadcast = "255.255.255.255"; // OK: broadcast IP
string loopback = "127.0.0.1"; // OK: loopback IP
string software_version = "9.0.3.1"; // "Hardcoded IP Address (C#)" warning issued here when CSHARP_ANALYSIS_PEDANTIC_MODE=Yes
// - given the variable name, this is likely a false positive
string IPv4 = "192.88.11.2"; // "Hardcoded IP Address (C#)" warning issued here when CSHARP_ANALYSIS_PEDANTIC_MODE=Yes
TcpClient client_tcp = new TcpClient(IPv4, 2222); // "Hardcoded IP Address (C#)" warning issued here when CSHARP_ANALYSIS_PEDANTIC_MODE=No
UdpClient client_udp = new UdpClient(IPv4, 2223); // "Hardcoded IP Address (C#)" warning issued here when CSHARP_ANALYSIS_PEDANTIC_MODE=No
string ftp_IPv4 = "ftp://192.88.11.3:3333"; // "Hardcoded IP Address (C#)" warning issued here when CSHARP_ANALYSIS_PEDANTIC_MODE=Yes
Uri uri = new Uri(ftp_IPv4); // "Hardcoded IP Address (C#)" warning issued here when CSHARP_ANALYSIS_PEDANTIC_MODE=No
}
}
}
Parameterize it in a configuration file.
The following configuration file parameters affect checks for this warning class.
To report problems with this documentation, please visit https://support.codesecure.com/.