ZDI-CAN-12309: TP-Link Archer A7 Protection Mechanism Failure Firewall Bypass Vulnerability
This vulnerability allows a firewall bypass on affected installations of TP-Link Archer A7 AC1750 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of IPv6 connections. The issue results from the lack of proper filtering of IPv6 SSH connections. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of root.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| TP-Link Archer A7 Firmware |
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Reference Links
Frequently Asked Questions
What is the severity of ZDI-CAN-12309?
The severity of ZDI-CAN-12309 is considered high due to its potential for firewall bypass.
How do I fix ZDI-CAN-12309?
To fix ZDI-CAN-12309, update your TP-Link Archer A7 AC1750 router to the latest firmware provided by TP-Link.
What are the consequences of ZDI-CAN-12309?
The consequences of ZDI-CAN-12309 include unauthorized access to network traffic and possible data exposure.
Is authentication required to exploit ZDI-CAN-12309?
No, authentication is not required to exploit ZDI-CAN-12309.
Which devices are affected by ZDI-CAN-12309?
ZDI-CAN-12309 specifically affects TP-Link Archer A7 AC1750 routers.
- agent/severity
- agent/title
- agent/references
- agent/type
- agent/description
- agent/event
- agent/source
- agent/tags
- collector/zdi-advisory
- source/ZDI
- alias/ZDI-21-214
- alias/ZDI-CAN-12309
- alias/CVE-2021-27245
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- agent/softwarecombine
- vendor/tp-link
- canonical/tp-link archer a7 firmware