Vulnerability in Tcl 32s330
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.005 (40.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 40.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
Weakness classification (CWE)
References
- twitter.com/sickcodes/ (Third Party Advisory)
- twitter.com/johnjhacking/ (Third Party Advisory)
- sick.codes/extraordinary-vulnerabilities-discovered-in-tcl-android-tvs-now-worl… (Exploit, Third Party Advisory)
- github.com/sickcodes/security/blob/master/advisories/SICK-2020-012.md (Exploit, Third Party Advisory)
- sick.codes/sick-2020-012 (Exploit, Third Party Advisory)
- github.com/sickcodes/security/blob/master/etc/CVE-2020-27403_CVE-2020-28055_Pre… (Third Party Advisory)
- github.com/sickcodes/security/blob/master/etc/CVE-2020-27403_CVE-2020-28055_Glo… (Third Party Advisory)
- securityledger.com/2020/11/security-holes-opened-back-door-to-tcl-android-smart… (Third Party Advisory)
- securityledger.com/2020/11/tv-maker-tcl-denies-back-door-promises-better-proces… (Third Party Advisory)
- support.tcl.com/vulnerabilities-found-in-tcl-android-tvs (Vendor Advisory)
Frequently asked questions
- What is CVE-2020-28055?
- CVE-2020-28055 is a high-severity vulnerability in Tcl 32s330, classified under Incorrect Permission Assignment for Critical Resource. CVSS score: 7.8/10. Published 2020-11-10.
- How severe is CVE-2020-28055?
- High severity. CVSS v3 base score is 7.8 out of 10.