CVE-2020-8515

Multiple DrayTek Vigor Routers Web Management Page Vulnerability

Severity Score

9.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

Yes

*KEV

Decision

*SSVC

Descriptions

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.

Los dispositivos DrayTek Vigor2960 1.3.1_Beta, Vigor3900 1.4.4_Beta y Vigor300B 1.3.3_Beta, 1.4.2.1_Beta y 1.4.4_Beta permiten la ejecución remota de código como root (sin autenticación) a través de metacaracteres de shell al URI cgi-bin / mainfunction.cgi . Este problema se ha solucionado en Vigor3900 / 2960 / 300B v1.5.1.

DrayTek Vigor2960 version 1.3.1_Beta, Vigor3900 version 1.4.4_Beta, and Vigor300B versions 1.3.3_Beta, 1.4.2.1_Beta, and 1.4.4_Beta suffer from a remote command execution vulnerability.

DrayTek Vigor3900, Vigor2960, and Vigor300B routers contain an unspecified vulnerability that allows for remote code execution.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-02-01 CVE Reserved
2020-02-01 CVE Published
2020-03-30 First Exploit
2021-11-03 Exploited in Wild
2022-05-03 KEV Due Date
2024-08-04 CVE Updated
2024-12-23 EPSS Updated

CWE

CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

CAPEC

References (7)

URL	Tag	Source
https://sku11army.blogspot.com/2020/01/draytek-unauthenticated-rce-in-draytek.html	Third Party Advisory
https://www.draytek.com/about/security-advisory/vigor3900-/-vigor2960-/-vigor300b-router-web-management-page-vulnerability-%28cve-2020-8515%29	X_refsource_misc

URL	Date	SRC
https://www.exploit-db.com/exploits/48268	2020-03-30
https://github.com/imjdl/CVE-2020-8515-PoC	2020-03-30
https://github.com/darrenmartyn/CVE-2020-8515	2021-09-04
https://github.com/truerandom/nmap_draytek_rce	2024-08-12
http://packetstormsecurity.com/files/156979/DrayTek-Vigor2960-Vigor3900-Vigor300B-Remote-Command-Execution.html	2024-08-04

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Draytek Search vendor "Draytek"	Vigor2960 Firmware Search vendor "Draytek" for product "Vigor2960 Firmware"	1.3.1 Search vendor "Draytek" for product "Vigor2960 Firmware" and version "1.3.1"	beta	Affected	in	Draytek Search vendor "Draytek"	Vigor2960 Search vendor "Draytek" for product "Vigor2960"	-	-	Safe
Draytek Search vendor "Draytek"	Vigor300b Firmware Search vendor "Draytek" for product "Vigor300b Firmware"	1.3.3 Search vendor "Draytek" for product "Vigor300b Firmware" and version "1.3.3"	beta	Affected	in	Draytek Search vendor "Draytek"	Vigor300b Search vendor "Draytek" for product "Vigor300b"	-	-	Safe
Draytek Search vendor "Draytek"	Vigor300b Firmware Search vendor "Draytek" for product "Vigor300b Firmware"	1.4.2.1 Search vendor "Draytek" for product "Vigor300b Firmware" and version "1.4.2.1"	beta	Affected	in	Draytek Search vendor "Draytek"	Vigor300b Search vendor "Draytek" for product "Vigor300b"	-	-	Safe
Draytek Search vendor "Draytek"	Vigor300b Firmware Search vendor "Draytek" for product "Vigor300b Firmware"	1.4.4 Search vendor "Draytek" for product "Vigor300b Firmware" and version "1.4.4"	beta	Affected	in	Draytek Search vendor "Draytek"	Vigor300b Search vendor "Draytek" for product "Vigor300b"	-	-	Safe
Draytek Search vendor "Draytek"	Vigor3900 Firmware Search vendor "Draytek" for product "Vigor3900 Firmware"	1.4.4 Search vendor "Draytek" for product "Vigor3900 Firmware" and version "1.4.4"	beta	Affected	in	Draytek Search vendor "Draytek"	Vigor3900 Search vendor "Draytek" for product "Vigor3900"	-	-	Safe