Router crash via incomplete AddPortMapping request
Published Dec 8, 2024 · Updated Dec 9, 2024
Denial of service in TP-Link VN020-F3v TT_V6.2.1021 allows remote attackers to crash the router through an adjacent-network SOAP request. The WANIPConnection handler processes an AddPortMapping body that omits required fields instead of returning a SOAP error, causing the service and router to freeze. No authentication or user interaction is required, but the attacker must reach UPnP port 5431 from the local network; loss of connectivity can persist until manual intervention.
Summary
What happened
Denial of service in TP-Link VN020-F3v TT_V6.2.1021 allows remote attackers to crash the router through an adjacent-network SOAP request. The WANIPConnection handler processes an AddPortMapping body that omits required fields instead of returning a SOAP error, causing the service and router to freeze. No authentication or user interaction is required, but the attacker must reach UPnP port 5431 from the local network; loss of connectivity can persist until manual intervention.
The record
- CVE
- CVE-2024-12342
- Published
- Dec 8, 2024
- Updated
- Dec 9, 2024
- Vendor
- TP-Link
- Product
- VN020-F3v
- Classifications
- CWE-404, T1499
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- Dec 8, 2024CVE publishedPublication date reported by the CVE source.
- Dec 9, 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=TT_V6.2.1021
What conditions does exploitation require?
What is affected?
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
- TP-WANPunch AddPortMapping denial-of-service demonstrationfunctional · demonstrated
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Technologies
Your stack
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Your stack
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