CVEvulnerability
CVE-2020-28055
7.8 HIGH
Official page ↗
- Status
- Modified
- Published
- 2020-11-10
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 7.2 HIGH — AV:L/AC:L/Au:N/C:C/I:C/A:C
- Weaknesses
- CWE-732
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 a local unprivileged attacker, such as a malicious App, to read & write to the /data/vendor/tcl, /data/vendor/upgrade, and /var/TerminalManager directories within the TV file system. An attacker, such as a malicious APK or local unprivileged user could perform fake system upgrades by writing to the /data/vendor/upgrage folder.
Affected configurations
• tcl 32s330 firmware (< v8-r851t10-lf1v091)
• tcl 40s330 firmware (< v8-r851t10-lf1v091)
• tcl 43s434 firmware (< v8-r851t02-lf1v440)
• tcl 50s434 firmware (< v8-r851t02-lf1v440)
• tcl 55s434 firmware (< v8-r851t02-lf1v440)
• tcl 65s434 firmware (< v8-r851t02-lf1v440)
• tcl 75s434 firmware (< v8-r851t02-lf1v440)
Related
Weakness · CWE (1)
- CWE-732 Incorrect Permission Assignment for Critical Resource weakness
References
- https://github.com/sickcodes/security/blob/master/advisories/SICK-2020-012.md Exploit, Third Party Advisory
- https://github.com/sickcodes/security/blob/master/etc/CVE-2020-27403_CVE-2020-28055_GlobalFAQ.pdf Third Party Advisory
- https://github.com/sickcodes/security/blob/master/etc/CVE-2020-27403_CVE-2020-28055_Press-Statement-and-Questions_11162020.pdf Third Party Advisory
- https://securityledger.com/2020/11/security-holes-opened-back-door-to-tcl-android-smart-tvs/ Third Party Advisory
- https://securityledger.com/2020/11/tv-maker-tcl-denies-back-door-promises-better-process/ Third Party Advisory
- https://sick.codes/extraordinary-vulnerabilities-discovered-in-tcl-android-tvs-now-worlds-3rd-largest-tv-manufacturer/ Exploit, Third Party Advisory
- https://sick.codes/sick-2020-012 Exploit, Third Party Advisory
- https://support.tcl.com/vulnerabilities-found-in-tcl-android-tvs Vendor Advisory
- https://twitter.com/johnjhacking/ Third Party Advisory
- https://twitter.com/sickcodes/ Third Party Advisory
- https://github.com/sickcodes/security/blob/master/advisories/SICK-2020-012.md Exploit, Third Party Advisory
- https://github.com/sickcodes/security/blob/master/etc/CVE-2020-27403_CVE-2020-28055_GlobalFAQ.pdf Third Party Advisory
- https://github.com/sickcodes/security/blob/master/etc/CVE-2020-27403_CVE-2020-28055_Press-Statement-and-Questions_11162020.pdf Third Party Advisory
- https://securityledger.com/2020/11/security-holes-opened-back-door-to-tcl-android-smart-tvs/ Third Party Advisory
- https://securityledger.com/2020/11/tv-maker-tcl-denies-back-door-promises-better-process/ Third Party Advisory
- https://sick.codes/extraordinary-vulnerabilities-discovered-in-tcl-android-tvs-now-worlds-3rd-largest-tv-manufacturer/ Exploit, Third Party Advisory
- https://sick.codes/sick-2020-012 Exploit, Third Party Advisory
- https://support.tcl.com/vulnerabilities-found-in-tcl-android-tvs Vendor Advisory
- https://twitter.com/johnjhacking/ Third Party Advisory
- https://twitter.com/sickcodes/ Third Party Advisory