CVE-2020-27403
6.5 · MEDIUMOverview
CVE-2020-27403 is a medium-severity vulnerability affecting tcl 32s330_firmware. It was published on November 10, 2020 and has a CVSS 3.1 base score of 6.5 (MEDIUM).
This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
Technical Description
A vulnerability in the TCL Android Smart TV series V8-R851T02-LF1 V295 and below and V8-T658T01-LF1 V373 and below by TCL Technology Group Corporation allows an attacker on the adjacent network to arbitrarily browse and download sensitive files over an insecure web server running on port 7989 that lists all files & directories. An unprivileged remote attacker on the adjacent network, can download most system files, leading to serious critical information disclosure. Also, some TV models and/or FW versions may expose the webserver with the entire filesystem accessible on another port. For example, nmap scan for all ports run directly from the TV model U43P6046 (Android 8.0) showed port 7983 not mentioned in the original CVE description, but containing the same directory listing of the entire filesystem. This webserver is bound (at least) to localhost interface and accessible freely to all unprivileged installed apps on the Android such as a regular web browser. Any app can therefore rea
Remediation
Check the references section for vendor advisories and patches from tcl. Update 32s330_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| tcl | 32s330_firmware | >= 0, < v8-r851t10-lf1v091 | Affected |
| tcl | 40s330_firmware | >= 0, < v8-r851t10-lf1v091 | Affected |
| tcl | 43s434_firmware | >= 0, < v8-r851t02-lf1v440 | Affected |
| tcl | 50s434_firmware | >= 0, < v8-r851t02-lf1v440 | Affected |
| tcl | 55s434_firmware | >= 0, < v8-r851t02-lf1v440 | Affected |
| tcl | 65s434_firmware | >= 0, < v8-r851t02-lf1v440 | Affected |
| tcl | 75s434_firmware | >= 0, < v8-r851t02-lf1v440 | Affected |
References
Frequently Asked Questions
What is CVE-2020-27403?
CVE-2020-27403 is a medium-severity vulnerability affecting tcl 32s330_firmware. It was published on November 10, 2020 and has a CVSS 3.1 base score of 6.5 (MEDIUM).
How severe is CVE-2020-27403?
This vulnerability has a CVSS 3.1 base score of 6.5, rated MEDIUM. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2020-27403?
Check the references section for vendor advisories and patches from tcl. Update 32s330_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2020-27403?
CyberStrike's AI-powered security agents can automatically detect CVE-2020-27403 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
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