Service lockup via unlimited HTTP headers
Published May 29, 2023 · Updated Jan 14, 2025
Uncontrolled resource consumption in Open-Xchange OX App Suite backend 7.10.6-rev36 and 8.9 allows remote authenticated users to cause a lockup. The middleware HTTP client accepts attacker-controlled response headers without enforcing an aggregate length limit, so header processing can consume resources without a bound. Exploitation requires authenticated access to make the backend retrieve a controlled external resource, such as an iCal feed, and the reported consequence is a temporary processing lockup.
Summary
What happened
Uncontrolled resource consumption in Open-Xchange OX App Suite backend 7.10.6-rev36 and 8.9 allows remote authenticated users to cause a lockup. The middleware HTTP client accepts attacker-controlled response headers without enforcing an aggregate length limit, so header processing can consume resources without a bound. Exploitation requires authenticated access to make the backend retrieve a controlled external resource, such as an iCal feed, and the reported consequence is a temporary processing lockup.
The record
- CVE
- CVE-2023-24604
- Published
- May 29, 2023
- Updated
- Jan 14, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-400, T1499
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- May 29, 2023CVE publishedPublication date reported by the CVE source.
- Jan 14, 2025Record updatedLatest update available in the CVE record.
Exploitability
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Published CVSS scores
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Attacks
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Technologies
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