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CVE-2020-14312

Quick assessment

Affected
n/a dnsmasq
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.

dnsmasq是一款使用C语言编写的轻量级DNS转发和DHCP、TFTP服务器。 dnsmasq（Fedora和Red Hat Enterprise Linux）中的默认配置存在安全漏洞。该漏洞源于网络系统或产品未正确限制来自未授权角色的资源访问。

AI Predicted 7.5 Difficulty: Trivial EPSS 1.23% · P68

Possible ATT&CK Techniques 1 AI

T1498.002 · Reflection Amplification
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I. Basic Information for CVE-2020-14312

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in the default configuration of dnsmasq, as shipped with Fedora versions prior to 31 and in all versions Red Hat Enterprise Linux, where it listens on any interface and accepts queries from addresses outside of its local subnet. In particular, the option `local-service` is not enabled. Running dnsmasq in this manner may inadvertently make it an open resolver accessible from any address on the internet. This flaw allows an attacker to conduct a Distributed Denial of Service (DDoS) against other systems.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
dnsmasq 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
dnsmasq是一款使用C语言编写的轻量级DNS转发和DHCP、TFTP服务器。 dnsmasq（Fedora和Red Hat Enterprise Linux）中的默认配置存在安全漏洞。该漏洞源于网络系统或产品未正确限制来自未授权角色的资源访问。
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
- dnsmasq Fedora version prior to 31 -

II. Public POCs for CVE-2020-14312

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III. Intelligence Information for CVE-2020-14312

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Vendor Advisories for CVE-2020-14312 (1)

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Showing top 20 of 33 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: dnsmasq
Same vendor: n/a
Same weakness: CWE-284

V. Comments for CVE-2020-14312

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