Unauthenticated file write via thumbnail path traversal
Published Mar 25, 2024 · Updated Aug 1, 2024
Path traversal in LG LED Assistant 2.1.65 allows remote attackers to write arbitrary files through an unauthenticated upload request. The /api/thumbnail handler in Common.js accepts a user-controlled fileName and uses it as a disk path without restricting traversal outside the thumbnail directory. No authentication or user interaction is required; the demonstrated consequence is writing attacker-chosen content to any location permitted to the application process.
Summary
What happened
Path traversal in LG LED Assistant 2.1.65 allows remote attackers to write arbitrary files through an unauthenticated upload request. The /api/thumbnail handler in Common.js accepts a user-controlled fileName and uses it as a disk path without restricting traversal outside the thumbnail directory. No authentication or user interaction is required; the demonstrated consequence is writing attacker-chosen content to any location permitted to the application process.
The record
- CVE
- CVE-2024-2863
- Published
- Mar 25, 2024
- Updated
- Aug 1, 2024
- Vendor
- LG Electronics
- Product
- LG LED Assistant
- Classifications
- CWE-35, CAPEC-126, T1105
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 25, 2024CVE publishedPublication date reported by the CVE source.
- Aug 1, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=2.1.65
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Unauthenticated thumbnail path-traversal upload proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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