Remote Code Execution Vulnerability in DrayTek Vigor Routers
CVE-2023-31447

9.8CRITICAL

Key Information:

Vendor
Draytek
Status
Vigor2620 Firmware
Vendor
CVE Published:
21 August 2023

Summary

A remote code execution vulnerability exists in DrayTek Vigor2620 devices prior to version 3.9.8.4, as well as in all versions of Vigor2925 routers. Attackers can exploit this flaw by sending a specially crafted request to the vulnerable user_login.cgi script, which enables them to manipulate the code segment, inject shellcode, and execute arbitrary code on the device. This presents a significant risk, potentially allowing unauthorized access and control over affected systems.

References

https://draytek.com
https://gist.github.com/rrrrrrri/013c9eef64b265af4163478b...

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.