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CVE-2021-33190— Bypass network access control

Quick assessment

Affected
Apache Software Foundation Apache APISIX Dashboard
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.

Apache Apisix是美国阿帕奇（Apache）基金会的一个云原生的微服务API网关服务。该软件基于 OpenResty 和 etcd 来实现，具备动态路由和插件热加载，适合微服务体系下的 API 管理。 APISIX Dashboard2.6版本中存在安全漏洞，该漏洞源于在IP允许列表限制中，使用了一个风险函数来获取IP，这使得绕过网络限制成为可能。

AI Predicted 9.8 Difficulty: Trivial EPSS 2.69% · P85
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I. Basic Information for CVE-2021-33190

Vulnerability Information
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Vulnerability Title
Bypass network access control
Source: CVE Program / CVE List V5
Vulnerability Description
In Apache APISIX Dashboard version 2.6, we changed the default value of listen host to 0.0.0.0 in order to facilitate users to configure external network access. In the IP allowed list restriction, a risky function was used for the IP acquisition, which made it possible to bypass the network limit. At the same time, the default account and password are fixed.Ultimately these factors lead to the issue of security risks. This issue is fixed in APISIX Dashboard 2.6.1
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
过多认证尝试的限制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Apache Apisix 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Apache Apisix是美国阿帕奇（Apache）基金会的一个云原生的微服务API网关服务。该软件基于 OpenResty 和 etcd 来实现，具备动态路由和插件热加载，适合微服务体系下的 API 管理。 APISIX Dashboard2.6版本中存在安全漏洞，该漏洞源于在IP允许列表限制中，使用了一个风险函数来获取IP，这使得绕过网络限制成为可能。
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
Apache Software Foundation Apache APISIX Dashboard Apache APISIX Dashboard 2.6 2.6 -

II. Public POCs for CVE-2021-33190

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III. Intelligence Information for CVE-2021-33190

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Mailing List Discussions for CVE-2021-33190 (2)

IV. Related Vulnerabilities

Same product: Apache APISIX Dashboard
Same vendor: Apache Software Foundation
Same weakness: CWE-307

V. Comments for CVE-2021-33190

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