Remote Code Execution in TP-Link Archer A7 Firmware
CVE-2020-10882

8.8HIGH

Key Information:

Vendor

Tp-link
Status
Archer A7
Vendor
CVE Published:
25 March 2020

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 45%

What is CVE-2020-10882?

A vulnerability in the TP-Link Archer A7 router allows network-adjacent attackers to execute arbitrary code without authentication. The flaw is found in the tdpServer service, which listens on UDP port 20002. When the service processes the slave_mac parameter, it fails to properly validate user input before executing a system call, leading to serious security risks. Attackers can exploit this issue to gain root access and potentially compromise the affected system.

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Affected Version(s)

Archer A7 Firmware Ver: 190726

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

Metasploit exploit module for CVE-2020-10882
Created by Rapid7

CVE-2020-10882
Created by lnversed

References

https://www.zerodayinitiative.com/advisories/ZDI-20-334/
x_refsource_MISC
http://packetstormsecurity.com/files/157255/TP-Link-Arche...
x_refsource_MISC

EPSS Score

45% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Pedro Ribeiro and Radek Domanski of Team Flashback
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