Problem accent windows client

[jacky35]

Hello,
I have a problem with a user who uses accents in his name.
The Burp Client refuses to make a backup.

2018-10-15 18:19:09 +0200: burp[13091] Backup started
2018-10-15 18:19:09 +0200: burp[13091] Client version: 2.2.12
2018-10-15 18:19:28 +0200: burp[13091] WARNING: Could not stat C:/Users/Rémi/Desktop: Unknown error
2018-10-15 18:19:28 +0200: burp[13091] WARNING: Could not stat C:/Users/Rémi/Documents: Unknown error

[ziirish]

Is the include defined client side?
I was never able to make this work thanks to Windows and its wonderful i18n support.
Anyway, that's why I implemented the include_wildcard option.

Another way to workaround this issue is to define your include server-side.

[jacky35]

It is defined server side.

By cons, I currently use the option "include_glob": - /

include_glob = C:/Users//Desktop
include_glob = C:/Users//Documents
include_glob = C:/Users//AppData/Roaming/Thunderbird
include_glob = C:/Users//AppData/Roaming/Mozilla

[ziirish]

Yes sorry, I meant include_glob instead of include_wildcard.
Doesn't this workaround your issue?

[jacky35]

Hello,
From the beginning I use a configuration on the server .

I have a file. incexc / profile_poste_windows_standard
on the server with:

---

include_glob = C:/Users//Desktop
include_glob = C:/Users//Documents
include_glob = C:/Users//AppData/Roaming/Thunderbird
include_glob = C:/Users//AppData/Roaming/Mozilla

exclude_regex="C:/Users/Administrateur"
exclude_regex="C:/Users/Administrator"
exclude_regex="C:/Users/Default"
exclude_regex="C:/Users/Default User"
exclude_regex="C:/Users/Public"
exclude_regex="C:/Users/All Users"

exclude_regex = /PrivÃe/
exclude_regex = /Private/
exclude_regex = /perso/
exclude_regex = /PERSONNEL/
exclude_regex = /privee/

exclude_regex = /ImapMail/

strip_vss = 1
~-------

Here is an attachment of the client's backup file:
http://dl.free.fr/qzLgpPGgf

---

[jacky35]

Am i oblige to do it manually for this client
a specific include_glob as below :

include_blog = C:/Users/Rémi/Desktop
include_blog = C:/Users/Rémi/Documents

[ziirish]

Do you run the burp client with the appropriate permissions?

[jacky35]

it's Task Scheduler

[ziirish]

If you open a cmd as admin then run burp.exe -a b (or -a t if you prefer) do you encounter the same behavior?

[jacky35]

I was wondering if there was not an influence if the server was in utf8 or not?

[ziirish]

If you have include_glob = C:/Users/*/Documents, then the glob evaluation takes place client-side. So there is no encoding issue (that was the initial purpose of this option).

I don't have any Windows client anymore at hand so I can't give it a proper look, but if you have some time to troubleshoot your issue I'm available on IRC as usual.

[jacky35]

Tomorrow for IRC

server side log

WARNING: Could not stat C:/Users/RÃmi/AppData/Roaming/Mozilla: Unknown error
2018-10-16 18:46:43 +0200: burp[16252] WARNING: Could not stat C:/Users/RÃmi/AppData/Roaming/Thunderbird: Unknown error
2018-10-16 18:46:43 +0200: burp[16252] WARNING: Could not stat C:/Users/RÃmi/Desktop: Unknown error
2018-10-16 18:46:43 +0200: burp[16252] WARNING: Could not stat C:/Users/RÃmi/Documents: Unknown error

---

Client side log /

a/Roaming/Mozilla: Unknown error
2018-10-16 18:46:57: burp.exe[2700] WARNING: Could not stat C:/Users/RÚmi/AppDat
a/Roaming/Thunderbird: Unknown error
2018-10-16 18:46:57: burp.exe[2700] WARNING: Could not stat C:/Users/RÚmi/Deskto
p: Unknown error
2018-10-16 18:46:57: burp.exe[2700] WARNING: Could not stat C:/Users/RÚmi/Docume
nts: Unknown error

[jacky35]

I have everything I need to do tests.

Just tell me what you need as information.

[ziirish]

Sorry, I had a busy day yesterday and haven't had a chance to have a look at your issue.

I'm available on IRC now if you like.

[jacky35]

After I can do a mklink but it's a little ugly. But it seems to work

mklink / d "C: \ Users \ Remi" "C: \ Users \ Rémi"

[ziirish]

@grke I just troubleshooted the issue wirh @jacky35 and my guess is the glob evaluation is generating an include list that is not properly handled by Windows.

I don't have any Windows development environment anymore (neither the Windows client nor the .exe build tools) so it might take some time for me to give it a proper look.

In the meantime I proposed a workaround with the use of exclude_logic which seem to do the trick.

[grke]

OK, thanks for the effort and the workaround.
I am working on other high-priority burp things, so won't be able to look at it for a while either.

[imweijh]

@jacky35 encoding the burp.conf with utf-8.
Have a try.

[grke]

The windows glob stuff uses the windows functions FindFirstFileA and FindNextFileA.
I think it needs to use FindFirstFileW and FindNextFileW and convert the results to UTF-8.

Haven't had a chance to prove it yet, but I've got better at understanding this particular brand of windows madness recently, so I might come up with something soon-ish.