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External tools password error when use complicate password #1104

icysplendor opened this issue Sep 19, 2018 · 3 comments


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commented Sep 19, 2018

Expected Behavior

logon system successfully when use external tools

Current Behavior

For example: authenticating with pre-entered password and access denied when use WinSCP as external tools

Possible Solution

Change a password

Steps to Reproduce (for bugs)

  1. setup a external tools like WinSCP or filezilla the argument is like protocol://%Username%:%Password%@%Hostname%:%Port%
  2. Connect server use external tool (the password is complicate like jhlw(okBmewzvWA)


common operation will be brooked when the bug happed

Your Environment

  • Version used: 1.75.7012.16814
  • Operating System and version (e.g. Windows 10 1709 x64): WIN10 * 64

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commented Sep 26, 2018

It's probably related to special characters on the password, I call the following script to encode the password and launch winscp.

@echo off

REM Pass Parameters: %1=Username %2=Password in double quotes %3=Hostname
set U=%1
set P=%2
set H=%3

REM WinSCP: Characters to replace, including DOS characters like ampersand, pipe, less-than, greater-than and double quotes
set "space=%%20"
set "hash=%%23"
set "percentage=%%25"
set "plus=%%2B"
set "slash=%%2F"
set "at=%%40"
set "colon=%%3A"
set "semicolon=%%3B"
set "ampersand=%%26"
set "pipe=%%7C"
set "less_than=%%3C"
set "greater_than=%%3E"
set "double_quotes=%%22"

REM Replaces percentage sign first!
set "P=!P:%%=%percentage%%!"
set "P=!P: =%space%!"
set "P=!P:#=%hash%!"
set "P=!P:+=%plus%!"
set "P=!P:/=%slash%!"
set "P=!P:@=%at%!"
set "P=!P::=%colon%!"
set "P=!P:;=%semicolon%!"
set "P=!P:&=%ampersand%!"
set "P=!P:|=%pipe%!"
set "P=!P:<=%less_than%!"
set "P=!P:>=%greater_than%!"
set "P=!P:"=%double_quotes%!"

REM Start WinSCP but removes 3 characters from start and end of the encoded password corresponding to the double quotes
REM echo start /D "%~dp0..\WinSCP" winscp.exe "sftp://%U%:%P:~3,-3%@%H%/"
start /D "%~dp0..\WinSCP" winscp.exe "sftp://%U%:%P:~3,-3%@%H%/"


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commented Sep 30, 2018

@icysplendor This is likely due to shell meta-character escaping. Try using %!Password% (notice the !) to disable this feature.


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commented Oct 12, 2018

The %!Password% works for me, when previously it didn't. Thanks for that 🥇

@sparerd sparerd closed this Apr 12, 2019
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