high7.8
CVE-2020-28055
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…
Impact
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 products
| Vendor | Product | Affected versions |
|---|---|---|
| Tcl | 32s330 Firmware | before v8-r851t10-lf1v091 |
| Tcl | 40s330 Firmware | before v8-r851t10-lf1v091 |
| Tcl | 43s434 Firmware | before v8-r851t02-lf1v440 |
| Tcl | 50s434 Firmware | before v8-r851t02-lf1v440 |
| Tcl | 55s434 Firmware | before v8-r851t02-lf1v440 |
| Tcl | 65s434 Firmware | before v8-r851t02-lf1v440 |
| Tcl | 75s434 Firmware | before v8-r851t02-lf1v440 |
Weakness classification
References
- NVD record
- CVE.org record
- https://github.com/sickcodes/security/blob/master/advisories/SICK-2020-012.md
- https://github.com/sickcodes/security/blob/master/etc/CVE-2020-27403_CVE-2020-28055_GlobalFAQ.pdf
- https://github.com/sickcodes/security/blob/master/etc/CVE-2020-27403_CVE-2020-28055_Press-Statement-and-Questions_11162020.pdf
- https://securityledger.com/2020/11/security-holes-opened-back-door-to-tcl-android-smart-tvs/
- https://securityledger.com/2020/11/tv-maker-tcl-denies-back-door-promises-better-process/
- https://sick.codes/extraordinary-vulnerabilities-discovered-in-tcl-android-tvs-now-worlds-3rd-largest-tv-manufacturer/
- https://sick.codes/sick-2020-012
- https://support.tcl.com/vulnerabilities-found-in-tcl-android-tvs
- https://twitter.com/johnjhacking/
- https://twitter.com/sickcodes/
- https://github.com/sickcodes/security/blob/master/advisories/SICK-2020-012.md
- https://github.com/sickcodes/security/blob/master/etc/CVE-2020-27403_CVE-2020-28055_GlobalFAQ.pdf
- https://github.com/sickcodes/security/blob/master/etc/CVE-2020-27403_CVE-2020-28055_Press-Statement-and-Questions_11162020.pdf
- https://securityledger.com/2020/11/security-holes-opened-back-door-to-tcl-android-smart-tvs/
- https://securityledger.com/2020/11/tv-maker-tcl-denies-back-door-promises-better-process/
- https://sick.codes/extraordinary-vulnerabilities-discovered-in-tcl-android-tvs-now-worlds-3rd-largest-tv-manufacturer/
- https://sick.codes/sick-2020-012
- https://support.tcl.com/vulnerabilities-found-in-tcl-android-tvs
- https://twitter.com/johnjhacking/
- https://twitter.com/sickcodes/