Authenticated HTTP service crash via unbounded sscanf write
Published Jun 20, 2024 · Updated Mar 25, 2025
Stack-based buffer overflow in the SonicWall SonicOS HTTP server 7.1.1-7051 and earlier allows remote authenticated users to crash the service. The HTTP server passes attacker-controlled request data to sscanf without adequately bounding the destination stack buffer, causing an out-of-bounds write. A high-privilege authenticated session and network access to the HTTP management service are required, and successful exploitation interrupts that service.
Summary
What happened
Stack-based buffer overflow in the SonicWall SonicOS HTTP server 7.1.1-7051 and earlier allows remote authenticated users to crash the service. The HTTP server passes attacker-controlled request data to sscanf without adequately bounding the destination stack buffer, causing an out-of-bounds write. A high-privilege authenticated session and network access to the HTTP management service are required, and successful exploitation interrupts that service.
The record
- CVE
- CVE-2024-29012
- Published
- Jun 20, 2024
- Updated
- Mar 25, 2025
- Vendor
- SonicWall
- Product
- SonicOS
- Classifications
- CWE-787, CWE-121, T1499.004
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- Jun 20, 2024CVE publishedPublication date reported by the CVE source.
- Mar 25, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=7.1.1-7051 and earlier versions
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
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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