Memory corruption via oversized deviceMac parameter
Published Jul 16, 2024 · Updated Aug 2, 2024
Stack-based buffer overflow in Tenda AC18 Firmware 15.03.3.10 allows remote attackers to corrupt memory via deviceMac. The /goform/addWifiMacFilter handler processes deviceMac without rejecting input that exceeds its destination stack buffer. Unauthenticated access from an adjacent network is sufficient; public evidence does not establish whether corruption reliably crashes the service or enables code execution.
Summary
What happened
Stack-based buffer overflow in Tenda AC18 Firmware 15.03.3.10 allows remote attackers to corrupt memory via deviceMac. The /goform/addWifiMacFilter handler processes deviceMac without rejecting input that exceeds its destination stack buffer. Unauthenticated access from an adjacent network is sufficient; public evidence does not establish whether corruption reliably crashes the service or enables code execution.
The record
- CVE
- CVE-2024-33181
- Published
- Jul 16, 2024
- Updated
- Aug 2, 2024
- Vendor
- Shenzhen Tenda Technology Co., Ltd.
- Product
- AC18 Firmware
- Classifications
- CWE-121
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 16, 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=15.03.3.10
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
- addWifiMacFilter_2 proof of conceptproof of concept · unverified
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Technologies
Your stack
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Your stack
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