On Franklin Fueling Systems TS-550 evo 2.3.0.7332 devices, the Guest user, which contains the lowest privileges, can post to the idSourceFileName parameter found within the /download directory. This ability allows for an attacker to download sensitive system files from the host machine such as databases which contain information that can aid in further attacks.
The product does not perform an authorization check when an actor attempts to access a resource or perform an action.
Link | Tags |
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http://www.u235.io/single-post/2017/05/01/Penetrating-Fuel-Management-Systems | url repurposed third party advisory technical description |
https://gist.github.com/Stick-U235/b187931f828e92866d09b9bdeb956ca2 | third party advisory |