Unauthenticated file disclosure via missing password check
Published Nov 19, 2021 · Updated Aug 3, 2024
Authorization bypass in Concrete CMS before 8.5.7 allows remote attackers to read password-protected files through view_inline. The download_file controller's view_inline method obtains the file resource without first rejecting files whose getPassword() value is set. No authentication or user interaction is required, but disclosure is limited to a password-protected file whose identifier is supplied to the network endpoint.
Summary
What happened
Authorization bypass in Concrete CMS before 8.5.7 allows remote attackers to read password-protected files through view_inline. The download_file controller's view_inline method obtains the file resource without first rejecting files whose getPassword() value is set. No authentication or user interaction is required, but disclosure is limited to a password-protected file whose identifier is supplied to the network endpoint.
The record
- CVE
- CVE-2021-22951
- Published
- Nov 19, 2021
- Updated
- Aug 3, 2024
- Vendor
- Concrete CMS
- Product
- Concrete CMS
- Classifications
- CWE-639, T1213
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Nov 19, 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=Fixed version Concrete CMS 8.5.7 and 9.0
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
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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