Vulnerability Report

CVE-2020-28055

Title: TCL Android Smart TV Local File Read/Write

Arbitrary File Write

Proof Of Concept

No public PoC currently indexed for CVE-2020-28055.

CWE Category CWE-732
Published Date Nov 10, 2020
Modified Date Nov 21, 2024
Exploit Status Not Found
Score 7.8 CVSS v3.1
Exploit Probability (EPSS)
0.50%

Vulnerability Summary

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.

Impacted Vendors

T
tcl 7

Reference Links

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/
CVSS v3.1
Source Entity [email protected]
Severity HIGH
7.8
Attack Vector
LOCAL
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v2.0
Source Entity [email protected]
Severity HIGH
7.2
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:L/AC:L/Au:N/C:C/I:C/A:C

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2020-28055 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector LOCAL
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Stack

No specific products linked.