Critical severity · published Apr 9, 2024
CVE-2023-6317
A prompt bypass exists in the secondscreen.gateway service running on webOS version 4 through 7
9.8
CVSS
1.1%
EPSS
No
On KEV
Description
A prompt bypass exists in the secondscreen.gateway service running on webOS version 4 through 7. An attacker can create a privileged account without asking the user for the security PIN.
Full versions and TV models affected:
webOS 4.9.7 - 5.30.40 running on LG43UM7000PLA
webOS 5.5.0 - 04.50.51 running on OLED55CXPUA
webOS 6.3.3-442 (kisscurl-kinglake) - 03.36.50 running on OLED48C1PUB
webOS 7.3.1-43 (mullet-mebin) - 03.33.85 running on OLED55A23LA
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.1% · higher than 65% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WE
Webos · LG
4.9.7; 5.5.0; 6.3.3-442; 7.3.1-43 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-6317
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-6317
Exploit
https://bitdefender.com/blog/labs/vulnerabilities-identified-in-lg-webos/
Vendor Advisory
https://lgsecurity.lge.com/bulletins/tv#updateDetails
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