![]() If nothing interesting is returned, the next step is often looking for logical vulnerabilities specifically abusing symlink/mountpoint/hardlink primitives. This process typically involves running a tool such as PowerUp, which will identify various trivial (yet common) misconfigurations. My approach often includes starting with the basics and working my way up in complexity. When assessing software for privilege escalation vulnerabilities, finding a starting point can often be overwhelming as there are many different primitives and vulnerability classes that exist. When it does so, the service will hit the symbolic link and write the new file into a protected location with permissions that allow the low privileged user full control over the contents, resulting in Elevation of Privilege to NT AUTHORITY\SYSTEM. When the service checks for presentations, it will move the file out of the QueuedPresentations folder and into the InvalidPresentations folder. Since a low privileged user has full control over the QueuedPresentations and InvalidPresentations folders, it is possible to create an invalid presentation in the QueuedPresentations folder and then place a symbolic link for that file name in the InvalidPresentations folder that points to a privileged location. If an invalid one is found, the service moves that file to “C:\ProgramData\Techsmith\TechSmith Recorder\InvalidPresentations” as SYSTEM. This vulnerability was found in conjunction with Marcus Sailler, Rick Romo and Gary Muller of Capital Group’s Security Testing TeamĮvery 30-60 seconds, the TechSmith Uploader Service (UploaderService.exe) checks the folder “C:\ProgramData\Techsmith\TechSmith Recorder\QueuedPresentations” for any presentation files in the “*.xml” format. Please feel to contact me if you have questions, or need any help.Vulnerability: SnagIt Relay Classic Recorder Local Privilege Escalation through insecure file move Since, then I was encouraged to create an ITNinja account and share with others. Now, I have done SnagIt 2019 using KACE to deploy, which is including the license key. So I just started using KACE to deploy Office 2019, Project 2019, and Visio 2019 for the first time a week ago, self-taught if I must add. EXE file and a few commands, I decided to take it upon myself to figure it out, because no one else tried. ![]() The company that I currently work for almost 2 years had a training with KACE few months before I started, but less than a hand full or people attended the class, and only 2 of them so what remembered how to deploy applications with KACE, nor did they care to use the feature. Snagit.msi TRANSFORMS=Snagit.mst /qn /norestart Once that is done go to Distribution > Software > Create > New and input software information, and insert the following commands. I uploaded the zip file through Inventory > Software > Create > New You don't have to do it that way, but that's how I did it. Note: When I created the package, I selected for the previous version to be uninstalled and keep existing files. SnagIt License Key and create the package. The SnagIt Deployment Tool and insert the The Version range of the purchased License Shoot it off to whatever DPs you need it on and test. Create a new SCCM package, create the a program, and set the command line as Install.bat. If you do not need to uninstall SnagIT 11 after installing SnagIT 12, remove the lines below from the script after pasting it into notepad:ħ. MsiExec.exe /x "C:\Windows\temp\Snagit\SnagIT_11.msi" TSC_DATA_STORE=0 /quietĬopy the script, paste it into notepad, name it Install.bat, and place it in the same folder as the SnagIT 12 MSI, SnagIT 11 MSI, and your MST. Msiexec.exe /I "C:\Windows\temp\Snagit\snagit.msi" TRANSFORMS="C:\Windows\temp\Snagit\CustInst.mst" /qb /norestart ![]() ![]() Here is the script I used to install SnagIT 12 and then uninstall SnagIT OFF If you need to uninstall SnagIT 11 during the SnagIT 12 install, grab the MSI you used to deploy SnagIT 11 and also place it in the SnagIT_12 folder.Ħ. Place the SnagIT 12 MSI and MST in a folder (I named the folder SnagIT_12)ĥ. I found the documentation to be helpful, but the program itself is also quite easy to follow (pretty much fill in the blank style).Ĥ. Create your MST file using the Techsmith deployment tool. Download the Techsmith deployment tool, a link is located in the documentation hereģ. After trying multiple Msiexec switches, different methods, etc, I finally set the script to uninstall SnagIT 11 only after installing SnagIT 12 instead of the other way around, which worked like a charm.ĭirections on packaging SnagIT 12 for deployment with SCCM 2007:Ģ. The biggest issue I ran into with this install was actually the uninstalling of SnagIT 11.
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