Auth bypass in Franklinfueling Ts-550 Evo
CVE-2017-6564
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.
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.008 (55.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 55.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Franklinfueling Ts-550 Evo
- Franklinfueling Ts-550 Evo Firmware — versions 2.3.0.7332
Weakness classification (CWE)
References
- www.u235.io/single-post/2017/05/01/Penetrating-Fuel-Management-Systems (Technical Description, URL Repurposed, Third Party Advisory)
- gist.github.com/Stick-U235/b187931f828e92866d09b9bdeb956ca2 (Third Party Advisory)
Frequently asked questions
- What is CVE-2017-6564?
- CVE-2017-6564 is a medium-severity vulnerability in Franklinfueling Ts-550 Evo, classified under Missing Authorization. CVSS score: 6.5/10. Published 2017-05-01.
- How severe is CVE-2017-6564?
- Medium severity. CVSS v3 base score is 6.5 out of 10.