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CVE-2020-28055

HIGH

7.8

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.

CVE Details

CVSS v3.1 Score7.8

SeverityHIGH

CVSS VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack VectorLOCAL

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published11/10/2020

Last Modified11/21/2024

Sourcenvd

Honeypot Sightings0

Affected Products

tcl:32s330tcl:32s330_firmwaretcl:40s330tcl:40s330_firmwaretcl:43s434tcl:43s434_firmwaretcl:50s434tcl:50s434_firmwaretcl:55s434tcl:55s434_firmwaretcl:65s434tcl:65s434_firmwaretcl:75s434tcl:75s434_firmware

Weaknesses (CWE)

CWE-732

References

https://github.com/sickcodes/security/blob/master/advisories/SICK-2020-012.md(cve@mitre.org)

https://github.com/sickcodes/security/blob/master/etc/CVE-2020-27403_CVE-2020-28055_GlobalFAQ.pdf(cve@mitre.org)

https://github.com/sickcodes/security/blob/master/etc/CVE-2020-27403_CVE-2020-28055_Press-Statement-and-Questions_11162020.pdf(cve@mitre.org)

https://securityledger.com/2020/11/security-holes-opened-back-door-to-tcl-android-smart-tvs/(cve@mitre.org)

https://securityledger.com/2020/11/tv-maker-tcl-denies-back-door-promises-better-process/(cve@mitre.org)

https://sick.codes/extraordinary-vulnerabilities-discovered-in-tcl-android-tvs-now-worlds-3rd-largest-tv-manufacturer/(cve@mitre.org)

https://sick.codes/sick-2020-012(cve@mitre.org)

https://support.tcl.com/vulnerabilities-found-in-tcl-android-tvs(cve@mitre.org)

https://twitter.com/johnjhacking/(cve@mitre.org)

https://twitter.com/sickcodes/(cve@mitre.org)

https://github.com/sickcodes/security/blob/master/advisories/SICK-2020-012.md(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/sickcodes/security/blob/master/etc/CVE-2020-27403_CVE-2020-28055_GlobalFAQ.pdf(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/sickcodes/security/blob/master/etc/CVE-2020-27403_CVE-2020-28055_Press-Statement-and-Questions_11162020.pdf(af854a3a-2127-422b-91ae-364da2661108)

https://securityledger.com/2020/11/security-holes-opened-back-door-to-tcl-android-smart-tvs/(af854a3a-2127-422b-91ae-364da2661108)

https://securityledger.com/2020/11/tv-maker-tcl-denies-back-door-promises-better-process/(af854a3a-2127-422b-91ae-364da2661108)

https://sick.codes/extraordinary-vulnerabilities-discovered-in-tcl-android-tvs-now-worlds-3rd-largest-tv-manufacturer/(af854a3a-2127-422b-91ae-364da2661108)

https://sick.codes/sick-2020-012(af854a3a-2127-422b-91ae-364da2661108)

https://support.tcl.com/vulnerabilities-found-in-tcl-android-tvs(af854a3a-2127-422b-91ae-364da2661108)

https://twitter.com/johnjhacking/(af854a3a-2127-422b-91ae-364da2661108)

https://twitter.com/sickcodes/(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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