CVE-2018-16288

published 2018-09-14

CVE-2018-16288: LG SuperSign CMS allows reading of arbitrary files via signEzUI/playlist/edit/upload/..%2f URIs.

Priority P2 69 high 8.6 CVSS 3.0

AV N AC L PR N UI N S C C H I N A N

EXPLOIT

LG SuperSign CMS allows reading of arbitrary files via signEzUI/playlist/edit/upload/..%2f URIs.

Affected

1 ranges

Vendor	Product	Version range	Fixed in
lg	supersign_cms	—	—

Detection & IOCs extracted from sources · hover to see the quote

url /signEzUI/playlist/edit/upload/..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f..%2f../etc/passwd↗

port 9080↗

path /signEzUI/playlist/edit/upload/..%2f↗

• → Detect unauthenticated HTTP GET requests to the vulnerable LFI path on port 9080 containing path traversal sequences (%2f..%2f) targeting /signEzUI/playlist/edit/upload/ ↗
• → No authentication is required to exploit this LFI; alert on any request to the vulnerable path regardless of session/auth headers ↗
• → A successful exploitation response will contain Unix passwd file content matching root:.*:0:0: with HTTP 200 status ↗

• · The exploit was tested specifically against Web OS 4.0; behavior on other versions may differ ↗
• · The vulnerable service listens on port 9080; ensure network monitoring covers this non-standard HTTP port ↗

CVSS provenance

nvd v3.0 8.6 HIGH CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N

nvd v2.0 7.8 HIGH AV:N/AC:L/Au:N/C:C/I:N/A:N

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