Authenticated stack overflow in firmware
Published Apr 28, 2020 · Updated Aug 5, 2024
A stack-based buffer overflow in NETGEAR routers before listed fixed firmware versions allows remote authenticated users to trigger memory corruption via crafted requests. The affected firmware’s authenticated request handling writes attacker-controlled data into a stack buffer without adequate bounds, causing the overflow. Exploitation requires authenticated access to the router’s adjacent-network management interface; the record does not document whether impact extends beyond service interruption or code execution.
Summary
What happened
A stack-based buffer overflow in NETGEAR routers before listed fixed firmware versions allows remote authenticated users to trigger memory corruption via crafted requests. The affected firmware’s authenticated request handling writes attacker-controlled data into a stack buffer without adequate bounds, causing the overflow. Exploitation requires authenticated access to the router’s adjacent-network management interface; the record does not document whether impact extends beyond service interruption or code execution.
The record
- CVE
- CVE-2018-21185
- Published
- Apr 28, 2020
- Updated
- Aug 5, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-787, T1190
- Attack vector
- adjacent
- Privileges
- authenticated
Timeline
How it unfolded
- Apr 28, 2020CVE publishedPublication date reported by the CVE source.
- Aug 5, 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?
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.
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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