Authenticated memory corruption via DelDNSHnList stack overflow
Published May 31, 2023 · Updated Jan 10, 2025
Stack overflow in H3C Magic R300 firmware R300-2100MV100R004 allows remote authenticated users to corrupt memory via DelDNSHnList. The /goform/aspForm DelDNSHnList handler writes request data beyond a stack buffer, but public records do not identify the parameter or copy operation. Administrative authentication is required, and public evidence does not demonstrate whether exploitation stops at a crash or reaches code execution.
Summary
What happened
Stack overflow in H3C Magic R300 firmware R300-2100MV100R004 allows remote authenticated users to corrupt memory via DelDNSHnList. The /goform/aspForm DelDNSHnList handler writes request data beyond a stack buffer, but public records do not identify the parameter or copy operation. Administrative authentication is required, and public evidence does not demonstrate whether exploitation stops at a crash or reaches code execution.
The record
- CVE
- CVE-2023-33637
- Published
- May 31, 2023
- Updated
- Jan 10, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-787
- Attack vector
- network
- Privileges
- admin
Timeline
How it unfolded
- May 31, 2023CVE publishedPublication date reported by the CVE source.
- Jan 10, 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?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
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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