ZDI-20-333: (Pwn2Own) TP-Link Archer A7 DNS Response Stack-based Buffer Overflow Remote Code Execution Vulnerability
This vulnerability allows remote attackers to execute arbitrary code 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 DNS responses. A crafted DNS message can trigger an overflow of a fixed-length, stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the root user.
| 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-20-333?
The severity of ZDI-20-333 is critical due to the potential for remote code execution.
How do I fix ZDI-20-333?
To fix ZDI-20-333, update the firmware of your TP-Link Archer A7 AC1750 router to the latest version provided by TP-Link.
What type of attack does ZDI-20-333 facilitate?
ZDI-20-333 facilitates remote code execution attacks without the need for authentication.
What devices are affected by ZDI-20-333?
ZDI-20-333 affects TP-Link Archer A7 AC1750 routers running vulnerable firmware versions.
Is authentication required to exploit ZDI-20-333?
No, authentication is not required to exploit the vulnerability identified in ZDI-20-333.
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- collector/zdi-advisory
- alias/ZDI-20-333
- alias/ZDI-CAN-9660
- alias/CVE-2020-10881
- agent/software-canonical-lookup-request
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- vendor/tp-link
- canonical/tp-link archer a7 firmware