Authenticated path traversal file disclosure
Published Jan 6, 2020 · Updated Aug 5, 2024
Path traversal in piSignage before 2.6.4 allows remote authenticated users to download arbitrary Raspberry Pi files via the player log API. The /api/settings/log endpoint uses the file parameter without restricting traversal sequences, allowing a low-privilege account to request paths such as ../../etc/passwd. Exploitation requires network access and valid low-privilege authentication; the demonstrated impact is unauthorized file disclosure without reported modification or service interruption.
Summary
What happened
Path traversal in piSignage before 2.6.4 allows remote authenticated users to download arbitrary Raspberry Pi files via the player log API. The /api/settings/log endpoint uses the file parameter without restricting traversal sequences, allowing a low-privilege account to request paths such as ../../etc/passwd. Exploitation requires network access and valid low-privilege authentication; the demonstrated impact is unauthorized file disclosure without reported modification or service interruption.
The record
- CVE
- CVE-2019-20354
- Published
- Jan 6, 2020
- Updated
- Aug 5, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-22, T1005
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jan 6, 2020CVE publishedPublication date reported by the CVE source.
- Aug 5, 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?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
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
- piSignage path traversal proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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