Server resource exhaustion via unrestricted thumbnail generation
Published Jun 4, 2024 · Updated Aug 2, 2024
Resource exhaustion in Pimcore 11.0.0 through 11.2.3 allows remote attackers to interrupt service via crafted thumbnail URLs. The thumbnail endpoint accepts arbitrary ImageMagick output extensions and unbounded URL scaling factors, then generates and stores oversized derivative files without format or scale limits. No authentication or user interaction is required; repeated requests consume disk space, while a forced high-scale request can monopolize CPU.
Summary
What happened
Resource exhaustion in Pimcore 11.0.0 through 11.2.3 allows remote attackers to interrupt service via crafted thumbnail URLs. The thumbnail endpoint accepts arbitrary ImageMagick output extensions and unbounded URL scaling factors, then generates and stores oversized derivative files without format or scale limits. No authentication or user interaction is required; repeated requests consume disk space, while a forced high-scale request can monopolize CPU.
The record
- CVE
- CVE-2024-32871
- Published
- Jun 4, 2024
- Updated
- Aug 2, 2024
- Vendor
- Pimcore
- Product
- Pimcore
- Classifications
- CWE-770, T1499.004
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 4, 2024CVE publishedPublication date reported by the CVE source.
- Aug 2, 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=>= 11.0.0, < 11.2.4
- Affected versionversion=11.0.0 <=11.2.4
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
- GHSA thumbnail URL demonstrationsproof 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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