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 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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.8 HIGH
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
mitreCNA
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CVEADP
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Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 19%
Common Weakness Enumeration
References
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/