CVE-2019-17147 : Vulnerability Insights and Analysis
Discover the impact of CVE-2019-17147, a critical vulnerability in TP-Link TL-WR841N routers allowing remote code execution. Learn mitigation steps and how to prevent exploitation.
This CVE-2019-17147 article provides insights into a critical vulnerability affecting TP-Link TL-WR841N routers.
Understanding CVE-2019-17147
This section delves into the details of the vulnerability and its impact.
What is CVE-2019-17147?
CVE-2019-17147 is a vulnerability that allows attackers to execute arbitrary code on TP-Link TL-WR841N routers without requiring authentication. The flaw lies in the web service operating on TCP port 80, where inadequate validation of user-supplied data leads to a buffer overflow.
The Impact of CVE-2019-17147
The vulnerability has a CVSS base score of 8.8, indicating a high severity level. Attackers can exploit this flaw to run code with admin user privileges, posing a significant risk to confidentiality, integrity, and availability.
Technical Details of CVE-2019-17147
This section provides a deeper dive into the technical aspects of the vulnerability.
Vulnerability Description
The vulnerability stems from a buffer overflow issue (CWE-120) in the web service of TP-Link TL-WR841N routers, allowing attackers to execute arbitrary code.
Affected Systems and Versions
- Product: TP-Link TL-WR841N
- Version: 0.9.1 4.16 v007c.0 Build 180613 Rel.42415n
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Adjacent Network
- Privileges Required: None
- User Interaction: None
- Scope: Unchanged
- Exploitation of the vulnerability does not require user interaction and can be carried out from an adjacent network.
Mitigation and Prevention
Learn how to protect your systems from CVE-2019-17147.
Immediate Steps to Take
- Apply security patches provided by TP-Link promptly.
- Restrict network access to vulnerable devices.
- Monitor network traffic for any suspicious activities.
Long-Term Security Practices
- Regularly update firmware and software to patch known vulnerabilities.
- Implement network segmentation to limit the impact of potential attacks.
Patching and Updates
- Visit TP-Link's official support page to download and install the latest firmware updates for the TL-WR841N router.