CVE-2020-8515

Known Exploited Public Exploit

Description

DrayTek Vigor2960 1.3.1_Beta, Vigor3900 1.4.4_Beta, and Vigor300B 1.3.3_Beta, 1.4.2.1_Beta, and 1.4.4_Beta devices allow remote code execution as root (without authentication) via shell metacharacters to the cgi-bin/mainfunction.cgi URI. This issue has been fixed in Vigor3900/2960/300B v1.5.1.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 94.36% Top 5%
KEV Since 
Vendor Advisory draytek.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://sku11army.blogspot.com/2020/01/draytek-unauthenticated-rce-in-draytek.html third party advisory permissions required
https://www.draytek.com/about/security-advisory/vigor3900-/-vigor2960-/-vigor300b-router-web-management-page-vulnerability-%28cve-2020-8515%29/ vendor advisory
http://packetstormsecurity.com/files/156979/DrayTek-Vigor2960-Vigor3900-Vigor300B-Remote-Command-Execution.html exploit vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2020-8515?
CVE-2020-8515 has been scored as a critical severity vulnerability.
How to fix CVE-2020-8515?
To fix CVE-2020-8515, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-8515 being actively exploited in the wild?
It is confirmed that CVE-2020-8515 is actively exploited. Be extra cautious if you are using vulnerable components. According to its EPSS score, there is a ~94% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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