Unauthenticated file disclosure via unrestricted resource lookup
Published May 16, 2022 · Updated Aug 3, 2024
Path traversal in draw.io before 18.0.5 allows remote attackers to read local files from the deployed web application. WellKnownServlet removes the dot from the request URI and passes the resulting attacker-controlled path to getResourceAsStream without restricting it to the intended well-known file. An unauthenticated HTTP request can therefore disclose files readable through the web application's servlet context, without altering data or interrupting service.
Summary
What happened
Path traversal in draw.io before 18.0.5 allows remote attackers to read local files from the deployed web application. WellKnownServlet removes the dot from the request URI and passes the resulting attacker-controlled path to getResourceAsStream without restricting it to the intended well-known file. An unauthenticated HTTP request can therefore disclose files readable through the web application's servlet context, without altering data or interrupting service.
The record
- CVE
- CVE-2022-1721
- Published
- May 16, 2022
- Updated
- Aug 3, 2024
- Vendor
- draw.io Ltd
- Product
- draw.io
- Classifications
- CWE-22, T1005
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 16, 2022CVE publishedPublication date reported by the CVE source.
- Aug 3, 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=unspecified <18.0.5
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
- Huntr path-traversal proof of conceptproof of concept · unverified
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Technologies
Your stack
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Your stack
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