Remote Command Execution Flaw in DrayTek Vigor2960
CVE-2020-19664

8.8HIGH

Key Information:

Vendor
Draytek
Status
Vigor2960 Firmware
Vendor
CVE Published:
31 December 2020

Summary

The DrayTek Vigor2960 running version 1.5.1 is susceptible to a vulnerability that allows remote command execution. This flaw is exploited through specially crafted shell metacharacters within the toLogin2FA action in mainfunction.cgi. When manipulated by an attacker, this could enable unauthorized command execution on the device, potentially leading to significant security breaches.

References

https://github.com/minghangshen/bug_poc
x_refsource_MISC
https://nosec.org/home/detail/4631.html
x_refsource_MISC
https://www.draytek.com/about/security-advisory/vigor3900...
x_refsource_CONFIRM

EPSS Score

8% 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:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.