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burpsuite issues over VNC connection

Alan | Last updated: Dec 01, 2019 12:16AM UTC

Hello! I've run into a peculiar issue and wondering if anyone else has overcome it - when running burpsuite over my VNC connection (my primary access method) the burpsuite windows show up as pink and do not display content. However, if I console directly in (using ESXi) or use over an xrdp connection (I installed to troubleshoot, but interacts more slowly over my apache guacamole client) it works just fine. Any ideas on how to adjust to work over VNC? Distro: Debian 10 JRE: 11.0.5 from debian repo burpsuite v2.1.04 (from kali rolling repo) VNC server: tigervnc-standalone-server v1.9.0 VNC client: apache guacamole PS - I normally get the "burp has not been fully tested on this platform and you may expereince problems" in my terminal, but it works just fine if not in a VNC session! strange.

Ben, PortSwigger Agent | Last updated: Dec 02, 2019 09:21AM UTC

Hi, Is it just Burp that is not displaying correct over your VNC connection?

Burp User | Last updated: Dec 06, 2019 04:18PM UTC

Hi Ben, Yes - it's the only GUI app that seems to have a problem currently.

Mike, PortSwigger Agent | Last updated: Dec 09, 2019 08:26AM UTC

Alan, have you tried any other VNC client/servers when you have been troubleshooting?

June | Last updated: Jun 16, 2020 08:12PM UTC

Did you ever figure this out? I'm also having this issue.

Ben, PortSwigger Agent | Last updated: Jun 17, 2020 10:26AM UTC

Hi, Unfortunately, we were not able to replicate this issue. Do you have details of the VNC client that you are using so that we can take a further look?

June | Last updated: Jun 17, 2020 01:17PM UTC

Sure! I am using x11vnc version 0.9.16 as a vnc server and have tried with both KRDC Version 17.12.3 and TigerVNC Version 1.7.0 as the client. I'm actually running Kali in a docker image. The Dockerfile and entrypoint.sh are as below, in case that's helpful. Dockerfile: FROM kalilinux/kali:latest ARG KALI_DESKTOP=xfce RUN apt update && DEBIAN_FRONTEND='noninteractive' apt install -y \ iproute2 \ firefox-esr \ kali-desktop-xfce \ kali-tools-top10 \ && DEBIAN_FRONTEND='noninteractive' apt-get purge -y pm-utils xscreensaver* ENV DISPLAY :1 ENV KALI_DESKTOP ${KALI_DESKTOP} RUN apt-get install -y x11vnc xvfb \ && mkdir ~/.vnc \ && x11vnc -storepasswd 1234 ~/.vnc/passwd COPY entrypoint.sh /entrypoint.sh RUN chmod 744 entrypoint.sh ENTRYPOINT ["/entrypoint.sh"] entrypoint.sh: #!/bin/bash Xvfb :1 -screen 0 1600x900x16 & DISPLAY=:1.0 export DISPLAY startxfce4 & /usr/bin/x11vnc -display :1.0 -usepw -forever & wait -n

Ben, PortSwigger Agent | Last updated: Jun 19, 2020 07:39AM UTC

Hi, We will take a look and see if we can replicate this environment and the issue that you are observing. We will report back to this thread with any further news.

Nicolas | Last updated: Jan 21, 2021 03:36PM UTC

FYI, I had the same problem (pink Burp windows over VNC). Switching the VNC color depth from 16 to 24 solved the problem. https://imgur.com/a/xSIBjAE

Ben, PortSwigger Agent | Last updated: Jan 22, 2021 08:20AM UTC

Thanks for this Nicolas!

Anthony | Last updated: Apr 26, 2022 10:02PM UTC

I am on a phone using Userland desktop and trying to figure out how to install burp-suit.any help

Ben, PortSwigger Agent | Last updated: Apr 27, 2022 12:49PM UTC

Hi Anthony, Running Burp directly on a mobile device is not something that we have tested. Are you looking to use Burp in this manner in order to work with mobile browser traffic/apps? If so, you should be able to install Burp on a PC and set up a proxy on your mobile device so that the traffic is passing through the installation of Burp that is running on the machine. The following pages detail the process to configure this (please be aware that this documentation is slightly old, some of the screenshots being used do not quite match the latest versions of Burp, but the information supplied is still very much relevant): https://portswigger.net/support/configuring-an-android-device-to-work-with-burp https://portswigger.net/support/installing-burp-suites-ca-certificate-in-an-android-device

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