Ubuntu
network-manager-pptp package

Problem with special characters?

Bug #114928 reported by Andreas Weller
38
This bug affects 8 people
Affects Status Importance Assigned to Milestone
network-manager-pptp (Ubuntu)
Confirmed
Low
Unassigned

Bug Description

Binary package hint: network-manager-pptp

Hi!
I try to connect to a Win 2003 server via PPTP VPN with Networkmanager (gnome). It works with pptpconfig but not with NM.
Syslog:
May 16 00:58:54 andreas-laptop pptp[7183]: anon warn[ctrlp_disp:pptp_ctrl.c:955]: Non-zero Async Control Character Maps are not supported!
May 16 00:58:54 andreas-laptop pppd[7178]: nm-pppd-plugin: CHAP credentials requested.
May 16 00:58:54 andreas-laptop pppd[7178]: MS-CHAP authentication failed: E=691 Authentication failure
May 16 00:58:54 andreas-laptop pppd[7178]: CHAP authentication failed

I had to write the password in quotation marks in pptpconfig as it contains special characters like &%$. I tried it with "" and without it in NM. But it doesn't work - so NM is not good for strong passwords???
Anyone confirm this issue?

Regards,
  Andreas Weller

Siegfried Gevatter (rainct)
Changed in network-manager-pptp:
importance: Undecided → Medium
Revision history for this message
stevendm (sdmds) wrote :

I cannot confirm this issue. I've tried with &, % and $ in the password, all work fine as you can see below:
Jul 31 22:58:24 pc-steven pppd[7805]: nm-pppd-plugin: CHAP credentials requested.
Jul 31 22:58:24 pc-steven pppd[7805]: CHAP authentication succeeded
Jul 31 22:58:24 pc-steven pppd[7805]: MPPE 128-bit stateless compression enabled

I'm using Feisty (gnome) with:
network-manager version 0.6.4-6ubuntu7
and network-manager-pptp version 0.6.3+cvs20060819-0ubuntu2.

Are you on the same version?

Revision history for this message
Joseph Augustin (joseph-augustin) wrote :

Stevendm, please try the following characters:
§äöüß

Revision history for this message
KianTern (kian-tern) wrote :

Confirming there is a problem with special characters still exists in Ubuntu 8.04.
I'm using # in the password.

Revision history for this message
Tom Molin (tom-molin) wrote :

Is it possible that this actually may be because of a space character in the username, or should I file a new bug for this?

Both my colleague and I gets this error when connecting with Netmanager PPTP in Ubuntu. It works fine when using a login accountname without whitespaces in it. It works from Windows and MacOS X, so there's not an issue with the server.

When using an account created in exactly the same way but without a whitespace in the account name it works just fine.
I have tried with an asterix in the password and it doesn't make any difference.

We're using Ubuntu Intrepid Ibex (8.10) with the newest updates.

Package: network-manager-pptp
Section: universe/net
Maintainer: Ubuntu MOTU Developers <email address hidden>
Architecture: amd64
Version: 0.7~~svn20081015t024626-0ubuntu1

Logfile pastebin: http://paste.ubuntu.com/77413/

Revision history for this message
Tom Molin (tom-molin) wrote :

Can someone please try to confirm this with a whitespace character in the username?

Revision history for this message
Alexander Sack (asac) wrote :

can you please check whether this is an issue iwth the latest network-manager team packages for intrepid/jaunty? (http://launchpad.net/~network-manager/+archive)

Changed in network-manager-pptp:
status: New → Incomplete
Revision history for this message
Victor Vargas (kamus) wrote :

We are closing this bug report because it lacks the information we need to investigate the problem, as described in the previous comments. To reopen the bug report you can click on the current status, under the Status column, and change the Status back to "New". Thanks again!

Changed in network-manager-pptp (Ubuntu):
status: Incomplete → Invalid
Revision history for this message
Thomas (t.c) wrote :

We are on Ubuntu 12.04 and the problem is not solved.

I searched upstream, but didn't found a bug report.

Changed in network-manager-pptp (Ubuntu):
status: Invalid → New
Revision history for this message
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in network-manager-pptp (Ubuntu):
status: New → Confirmed
Revision history for this message
Thomas (t.c) wrote :

please look at also at the duplicate bug #574151

Revision history for this message
Anderson Diego Kulpa Fachini (anderson-dkfachini) wrote :

The problem keeps happening on Ubuntu 16.04.
In my case it started to happen when I changed my password and now it contains 'ç'.

Revision history for this message
Markku Valkonen (markku-valkonen) wrote :

I can confirm that this bug is still present in Ubuntu 22.04 LTS. If i change my password in windows server to not contains any special characters, i can successfully create PPTP VPN connection. If i change password to contain character ä (U+00E4), VPN connection fails with "CHAP authentication failed". All other configurations and options remain the same.

Revision history for this message
Sebastien Bacher (seb128) wrote :

Could someone having the issue report it upstream on https://gitlab.gnome.org/GNOME/NetworkManager-pptp ?

Changed in network-manager-pptp (Ubuntu):
importance: Medium → Low
Revision history for this message
Andreas Weller (weller-andreas-weller) wrote :

For the 15th birthday of this bug ;-)
I don't use PPTP in my server installations anymore - not only, but also due to this bug. Therefore I can't provide an upstream bug report.

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