Remote Code Execution Flaw in TP-LINK TL-WR841N Routers
CVE-2019-17147
8.8HIGH
Key Information:
Badges
👾 Exploit Exists🟡 Public PoC
Summary
This security flaw within the TP-LINK TL-WR841N router permits remote attackers to execute arbitrary code without requiring authentication. The vulnerability arises from improper validation of the Host request header's length when processed by the web service on TCP port 80. As a result, an attacker can exploit this vulnerability to run code as the admin user, potentially compromising the router's integrity and security.
Affected Version(s)
TL-WR841N 0.9.1 4.16 v007c.0 Build 180613 Rel.42415n
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.
References
CVSS V3.1
Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged
Timeline
- 🟡
Public PoC available
- 👾
Exploit known to exist
Vulnerability published
Vulnerability Reserved
Credit
Nguyen Hoang Thach - Security Researcher at VNPT ISC