Authenticated file disclosure via doc image path traversal
Published Jul 12, 2021 · Updated Aug 3, 2024
Path traversal in the doc module of Icinga Web 2 2.3.0 through 2.8.2 allows remote authenticated users to read server files. The module image route accepts traversal sequences in the image parameter and resolves them outside the requested module documentation tree. Exploitation requires an administrator-enabled doc module and a user granted module/doc access; disclosure is limited to files readable by the web-server account.
Summary
What happened
Path traversal in the doc module of Icinga Web 2 2.3.0 through 2.8.2 allows remote authenticated users to read server files. The module image route accepts traversal sequences in the image parameter and resolves them outside the requested module documentation tree. Exploitation requires an administrator-enabled doc module and a user granted module/doc access; disclosure is limited to files readable by the web-server account.
The record
- CVE
- CVE-2021-32746
- Published
- Jul 12, 2021
- Updated
- Aug 3, 2024
- Vendor
- Icinga
- Product
- Icinga Web 2
- Classifications
- CWE-22, T1005
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jul 12, 2021CVE 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=>= 2.3.0, <= 2.8.2
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
- Vendor-published doc image traversal requestproof of concept · unverified
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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