Critical severity · published Feb 1, 2020
CVE-2020-8515
Multiple DrayTek Vigor Routers Web Management Page Vulnerability
In wildKEV
9.8
CVSS
100%
EPSS
Yes
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)100.0% · higher than 100% of CVEs
Exploited in the wildYes
CISA KEVListed Nov 3, 2021
Federal remediation dueMay 3, 2022
Ransomware campaign useNot known
Affected products
Which versions
VF
Vigor2960 Firmware · Draytek
1.3.1 · source: NVD
VF
Vigor300b Firmware · Draytek
1.3.3; 1.4.2.1; 1.4.4 · source: NVD
VF
Vigor3900 Firmware · Draytek
1.4.4 · source: NVD
MV
Multiple Vigor Routers · DrayTek
All versions, or not specified · source: KEV
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-8515
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-8515
CISA KEV catalogue
https://www.cisa.gov/known-exploited-vulnerabilities-catalog
x_refsource_MISC
https://sku11army.blogspot.com/2020/01/draytek-unauthenticated-rce-in-draytek.html
x_refsource_MISC
https://www.draytek.com/about/security-advisory/vigor3900-/-vigor2960-/-vigor300b-router-web-management-page-vulnerability-%28cve-2020-8515%29/
x_refsource_MISC
http://packetstormsecurity.com/files/156979/DrayTek-Vigor2960-Vigor3900-Vigor300B-Remote-Command-Execution.html
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