Delete generic credential

Question

Hi,

I'm using the below code to delete the generic credential from control panel credential manager (windows credentials), but it's not working.

Please validate the code and suggest solutions.

StartProcess("cmd.exe", new string[] { "/c cmdkey.exe", $@"/delete:{args[1]}" }, string.Empty);

public static void StartProcess(string exePath, string[] args, string vbscript)
        {
            try
            {
                using (Process proc = new Process())
                {
                    proc.StartInfo.Verb = "runas";
                    proc.StartInfo.RedirectStandardOutput = true;
                    proc.StartInfo.RedirectStandardError = true;
                    proc.StartInfo.UseShellExecute = false;
                    proc.StartInfo.FileName = exePath;

                    if (args.Count() > 0 && string.IsNullOrWhiteSpace(vbscript) == false)
                        proc.StartInfo.Arguments = $@"{vbscript} \{string.Join(@"\ \", args)}\";
                    else if (args.Count() > 0)
                        proc.StartInfo.Arguments = $@"\{string.Join(@"\ \", args)}\";

                    proc.StartInfo.CreateNoWindow = true;
                    proc.StartInfo.WindowStyle = ProcessWindowStyle.Hidden; //prevent console window from popping up
                    proc.Start();
                    proc.WaitForExit();//program running until your script exit

                    string standardOutput = proc.StandardOutput.ReadToEnd();
                    if (!string.IsNullOrWhiteSpace(standardOutput))
                        LoggingService.LogInfo("standardOutput: " + standardOutput);

                    string standardError = proc.StandardError.ReadToEnd();
                    if (!string.IsNullOrWhiteSpace(standardOutput))
                        LoggingService.LogError("standardError: " + standardError);

                    LoggingService.LogInfo("ExitCode: " + proc.ExitCode);
                    //proc.Close();
                }
            }
            catch (Exception ex)
            {
                LoggingService.LogError(ex.Message + ex.StackTrace);
            }
        }

Answer 1

When I tested, I found that these two lines seemed to be enough:

            string deleteTarget = "testCredential";  
            Process.Start("cmdkey.exe", "/delete:"+deleteTarget);  

By the way, if you need to view the list of credentials, you can refer to the following code:

            string cSplitString = "target=";   
  
            var targets = new List<string>();  
            var proc = new Process   
            {  
                StartInfo = new ProcessStartInfo  
                {  
                    FileName = "cmdkey.exe",  
                    Arguments = "/list",  
                    UseShellExecute = false,  
                    RedirectStandardOutput = true,  
                    CreateNoWindow = true  
                }  
            };  
            proc.Start();  
            while (!proc.StandardOutput.EndOfStream)  
            {  
                string line = proc.StandardOutput.ReadLine();  
                if (line.Contains(cSplitString))  
                    targets.Add(line.Substring(line.IndexOf(cSplitString) + cSplitString.Length));  
            }  

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Answer 2

Thanks for the update.. finally i investigated and found the issue. The issue due to the amendment of slash passed to the process start info.

StartProcess("cmdkey.exe", new string[] { $@"/delete:{args[1]}" }, string.Empty);
proc.StartInfo.Arguments = $@"{string.Join(@" ", args)}";