Authenticated code execution via unchecked SSID copy
Published Jan 14, 2025 · Updated Jan 14, 2025
Stack buffer overflow in Wavlink AC3000 firmware M33A8.V5030.210505 allows remote authenticated users to execute arbitrary code via HTTP. The set_MeshAp() handler passes the unbounded wlan_ssid2 POST value to sprintf() for a 0x98-byte stack buffer, overwriting the return address. A valid session cookie and network access to the management interface are required; TouchLinkEn is enabled by default, and exploitation controls router execution.
Summary
What happened
Stack buffer overflow in Wavlink AC3000 firmware M33A8.V5030.210505 allows remote authenticated users to execute arbitrary code via HTTP. The set_MeshAp() handler passes the unbounded wlan_ssid2 POST value to sprintf() for a 0x98-byte stack buffer, overwriting the return address. A valid session cookie and network access to the management interface are required; TouchLinkEn is enabled by default, and exploitation controls router execution.
The record
- CVE
- CVE-2024-39370
- Published
- Jan 14, 2025
- Updated
- Jan 14, 2025
- Vendor
- Wavlink
- Product
- AC3000 Tri-band Wi-Fi Router
- Classifications
- CWE-120, T1190
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jan 14, 2025CVE publishedPublication date reported by the CVE source.
- Jan 14, 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=M33A8.V5030.210505
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
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Weakness, pattern, technique
Public exploit references
- Cisco Talos return-address overwrite demonstrationproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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