Authenticated router disruption via unchecked SSID copy
Published Oct 7, 2024 · Updated Oct 8, 2024
Stack-based buffer overflow in TP-Link TL-WR740N V6 firmware allows remote authenticated users to interrupt router service via a crafted SSID. The popupSiteSurveyRpm handler passes the POST-derived ssid value to stringModify, which writes into a 17-byte stack buffer without enforcing its capacity. Reachability requires the adjacent-network web management interface and a valid authorization cookie; the proof of concept demonstrates memory corruption but does not establish code execution.
Summary
What happened
Stack-based buffer overflow in TP-Link TL-WR740N V6 firmware allows remote authenticated users to interrupt router service via a crafted SSID. The popupSiteSurveyRpm handler passes the POST-derived ssid value to stringModify, which writes into a 17-byte stack buffer without enforcing its capacity. Reachability requires the adjacent-network web management interface and a valid authorization cookie; the proof of concept demonstrates memory corruption but does not establish code execution.
The record
- CVE
- CVE-2024-46325
- Published
- Oct 7, 2024
- Updated
- Oct 8, 2024
- Vendor
- TP-Link
- Product
- TL-WR740N Firmware
- Classifications
- CWE-121, T1499.004
- Attack vector
- adjacent
- Privileges
- authenticated
Timeline
How it unfolded
- Oct 7, 2024CVE publishedPublication date reported by the CVE source.
- Oct 8, 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?
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- Affected versionversion=0
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
- popupSiteSurveyRpm oversized-SSID proof of conceptproof of concept · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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