Local File Inclusion Vulnerability in Draytek VigorConnect by Draytek
CVE-2021-20124

7.5HIGH

Key Information:

Vendor

Draytek
Status
Draytek Vigorconnect
Vendor
CVE Published:
13 October 2021

Badges

👾 Exploit Exists🟣 EPSS 93%🦅 CISA Reported

What is CVE-2021-20124?

A local file inclusion vulnerability exists in the file download functionality of the WebServlet endpoint in Draytek VigorConnect version 1.6.0-B3. This flaw enables an unauthenticated attacker to exploit the vulnerability and download arbitrary files from the host operating system with elevated root privileges, potentially compromising sensitive system data and configurations.

CISA has reported CVE-2021-20124

CISA provides regional cyber and physical services to support security and resilience across the United States. CISA monitor the most dangerious vulnerabilities and have identifed CVE-2021-20124 as being exploited but is not known by the CISA to be used in ransomware campaigns. This is subject to change at pace

The CISA's recommendation is: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Affected Version(s)

Draytek VigorConnect 1.6.0-B3

References

https://www.tenable.com/security/research/tra-2021-42
x_refsource_MISC

EPSS Score

93% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 👾

    Exploit known to exist

  • 🦅

    CISA Reported

  • Vulnerability published

  • Vulnerability Reserved

.