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CVE-2020-3931— GeoVision Door Access Control Device - Buffer overflow vulnerability

Quick assessment

Affected
GeoVision Door Access Control Device
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

GeoVision GV-GF192x等都是中国台湾奇偶科技（GeoVision）公司的一款门禁控制设备。 多款Geovision产品中存在缓冲区错误漏洞。远程攻击者可利用该漏洞执行任意命令。以下产品及版本受到影响：Geovision GV-AS210 v2.21之前版本；GV-AS410 v2.21之前版本；GV-AS810 v2.21之前版本；GV-GF192x v1.10之前版本；GV-AS1010 v1.32之前版本。

CVSS 9.8 · Critical EPSS 1.77% · P76

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2020-3931

Vulnerability Information
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Vulnerability Title
GeoVision Door Access Control Device - Buffer overflow vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Buffer overflow exists in Geovision Door Access Control device family, an unauthenticated remote attacker can execute arbitrary command.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: CVE Program / CVE List V5
Vulnerability Title
多款GeoVision产品缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GeoVision GV-GF192x等都是中国台湾奇偶科技（GeoVision）公司的一款门禁控制设备。 多款Geovision产品中存在缓冲区错误漏洞。远程攻击者可利用该漏洞执行任意命令。以下产品及版本受到影响：Geovision GV-AS210 v2.21之前版本；GV-AS410 v2.21之前版本；GV-AS810 v2.21之前版本；GV-GF192x v1.10之前版本；GV-AS1010 v1.32之前版本。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
GeoVision Door Access Control Device GV-AS210 ~ 2.21 -

II. Public POCs for CVE-2020-3931

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III. Intelligence Information for CVE-2020-3931

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Security Blog Posts for CVE-2020-3931 (1)

Other References for CVE-2020-3931 (1)

IV. Related Vulnerabilities

Same product: Door Access Control Device
Same vendor: GeoVision
Same weakness: CWE-120

V. Comments for CVE-2020-3931

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