File write outside firmware directory via traversal
Published Apr 1, 2020 · Updated Aug 4, 2024
Path traversal in Ubiquiti UniFi Video Controller 3.9.3 and earlier allows remote authenticated users to write files outside the firmware directory. Its Windows firmware-update handler uses an unvalidated version field containing ..\ sequences to build the download destination path. High-privileged access from an adjacent network is required, and successful exploitation writes downloaded content outside the intended directory tree.
Summary
What happened
Path traversal in Ubiquiti UniFi Video Controller 3.9.3 and earlier allows remote authenticated users to write files outside the firmware directory. Its Windows firmware-update handler uses an unvalidated version field containing ..\ sequences to build the download destination path. High-privileged access from an adjacent network is required, and successful exploitation writes downloaded content outside the intended directory tree.
The record
- CVE
- CVE-2020-8144
- Published
- Apr 1, 2020
- Updated
- Aug 4, 2024
- Vendor
- Ubiquiti
- Product
- UniFi Video Controller
- Classifications
- CWE-22, T1105
- Attack vector
- adjacent
- Privileges
- admin
Timeline
How it unfolded
- Apr 1, 2020CVE publishedPublication date reported by the CVE source.
- Aug 4, 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=Fixed in v3.10.3 and newer
- Affected versionversion=v3.9.3 and prior are affected
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
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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