Vulnerability in Belden Tofino Xenon Security Appliance
CVE-2017-11400
An issue has been discovered on the Belden Hirschmann Tofino Xenon Security Appliance before 03.2.00. An incomplete firmware signature allows a local attacker to upgrade the equipment (kernel, file system) with unsigned, attacker-controlled, data. This occurs because the appliance_config file is signed but the .tar.sec file is unsigned.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (17.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 18th percentile — 17.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
Weakness classification (CWE)
References
- www.belden.com/hubfs/support/security/bulletins/Belden-Security-Bulletin-BSECV-… (Vendor Advisory)
- github.com/airbus-seclab/security-advisories/blob/master/belden/tofino.txt (Third Party Advisory)
Frequently asked questions
- What is CVE-2017-11400?
- CVE-2017-11400 is a medium-severity vulnerability in Belden Tofino Xenon Security Appliance, classified under Improper Verification of Cryptographic Signature. CVSS score: 6.8/10. Published 2017-11-20.
- How severe is CVE-2017-11400?
- Medium severity. CVSS v3 base score is 6.8 out of 10.