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CVE-2022-31182— Cache poisoning via maliciously-formed request in Discourse

Quick assessment

Affected
discourse discourse
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.

Discourse是一套开源的社区讨论平台。该平台包括社区、电子邮件和聊天室等功能。 Discourse stable 2.8.6及之前版本、Discourse beta 2.9.0.beta7及之前版本、Discourse tests-passed 2.9.0.beta7及之前版本存在安全漏洞，该漏洞源于恶意制作的静态资产请求可能会导致错误响应，被 Discourse 的默认 NGINX 代理配置缓存。

CVSS 5.3 · Medium EPSS 0.76% · P53

Possible ATT&CK Techniques 1 AI

T1557 · Adversary-in-the-Middle
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I. Basic Information for CVE-2022-31182

Vulnerability Information
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Vulnerability Title
Cache poisoning via maliciously-formed request in Discourse
Source: CVE Program / CVE List V5
Vulnerability Description
Discourse is the an open source discussion platform. In affected versions a maliciously crafted request for static assets could cause error responses to be cached by Discourse's default NGINX proxy configuration. A corrected NGINX configuration is included in the latest stable, beta and tests-passed versions of Discourse. Users are advised to upgrade. There are no known workarounds for this vulnerability.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
不恰当的资源关闭或释放
Source: CVE Program / CVE List V5
Vulnerability Title
Discourse 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Discourse是一套开源的社区讨论平台。该平台包括社区、电子邮件和聊天室等功能。 Discourse stable 2.8.6及之前版本、Discourse beta 2.9.0.beta7及之前版本、Discourse tests-passed 2.9.0.beta7及之前版本存在安全漏洞，该漏洞源于恶意制作的静态资产请求可能会导致错误响应，被 Discourse 的默认 NGINX 代理配置缓存。
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
discourse discourse < 2.8.7 -

II. Public POCs for CVE-2022-31182

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III. Intelligence Information for CVE-2022-31182

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Patches & Fixes for CVE-2022-31182 (1)

Vendor Advisories for CVE-2022-31182 (1)

IV. Related Vulnerabilities

Same product: discourse
Same vendor: discourse
Same weakness: CWE-404

V. Comments for CVE-2022-31182

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