Arbitrary file read via widget resource traversal
Published Sep 1, 2021 · Updated Oct 11, 2024
Path traversal in Atlasboard before 1.1.9 allows remote attackers to read arbitrary server files through crafted widget resource paths. renderWidgetResource accepts parent-directory segments in the resource value and resolves them outside the intended widgets directory before sending the file. No authentication or user interaction is required; successful exploitation exposes files readable by the Atlasboard process without modifying them.
Summary
What happened
Path traversal in Atlasboard before 1.1.9 allows remote attackers to read arbitrary server files through crafted widget resource paths. renderWidgetResource accepts parent-directory segments in the resource value and resolves them outside the intended widgets directory before sending the file. No authentication or user interaction is required; successful exploitation exposes files readable by the Atlasboard process without modifying them.
The record
- CVE
- CVE-2021-39109
- Published
- Sep 1, 2021
- Updated
- Oct 11, 2024
- Vendor
- Atlassian
- Product
- Atlasboard
- Classifications
- CWE-22, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 1, 2021CVE publishedPublication date reported by the CVE source.
- Oct 11, 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=0 <1.1.9
- Affected versionversion=unspecified <1.1.9
What conditions does exploitation require?
What is affected?
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
- GitHub Advisory Database renderWidgetResource proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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