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7.2
CVSSv2

CVE-2020-28055

Published: 10/11/2020 Updated: 08/12/2020
CVSS v2 Base Score: 7.2 | Impact Score: 10 | Exploitability Score: 3.9
CVSS v3 Base Score: 7.8 | Impact Score: 5.9 | Exploitability Score: 1.8
VMScore: 641
Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

Vulnerability Summary

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.

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tcl 32s330 firmware

tcl 40s330 firmware

tcl 43s434 firmware

tcl 50s434 firmware

tcl 55s434 firmware

tcl 65s434 firmware

tcl 75s434 firmware

References

CWE-732https://twitter.com/sickcodes/https://twitter.com/johnjhacking/https://sick.codes/extraordinary-vulnerabilities-discovered-in-tcl-android-tvs-now-worlds-3rd-largest-tv-manufacturer/https://github.com/sickcodes/security/blob/master/advisories/SICK-2020-012.mdhttps://sick.codes/sick-2020-012https://securityledger.com/2020/11/tv-maker-tcl-denies-back-door-promises-better-process/https://securityledger.com/2020/11/security-holes-opened-back-door-to-tcl-android-smart-tvs/https://github.com/sickcodes/security/blob/master/etc/CVE-2020-27403_CVE-2020-28055_Press-Statement-and-Questions_11162020.pdfhttps://support.tcl.com/vulnerabilities-found-in-tcl-android-tvshttps://github.com/sickcodes/security/blob/master/etc/CVE-2020-27403_CVE-2020-28055_GlobalFAQ.pdfhttps://nvd.nist.gov
CVSSv2
CVSSv2
CVSSv3
VMScore
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