Remote Command Execution Vulnerability in DrayTek Vigor Devices
CVE-2020-15415

9.8CRITICAL

Key Information:

Vendor

Draytek
Status
Vigor3900 Firmware
Vendor
CVE Published:
30 June 2020

Badges

👾 Exploit Exists🟣 EPSS 93%🦅 CISA Reported

What is CVE-2020-15415?

The DrayTek Vigor3900, Vigor2960, and Vigor300B devices prior to version 1.5.1 are susceptible to a remote command execution vulnerability. This issue occurs in the cgi-bin/mainfunction.cgi/cvmcfgupload functionality, where an attacker can exploit shell metacharacters in a filename when an improper content type, specifically text/x-python-script, is utilized. This vulnerability allows unauthorized individuals to execute arbitrary commands on the affected system, posing significant security risks.

CISA has reported CVE-2020-15415

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-2020-15415 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.

References

https://www.draytek.com/about/security-advisory
x_refsource_MISC
https://github.com/CLP-team/Vigor-Commond-Injection
x_refsource_MISC

EPSS Score

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

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

  • 👾

    Exploit known to exist

  • 🦅

    CISA Reported

  • Vulnerability published

  • Vulnerability Reserved

.