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CVE-2022-39241— Possible Server-Side Request Forgery (SSRF) in webhooks

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存在安全漏洞。攻击者利用该漏洞可以枚举本地主机或内部网络上的其他主机以及Internet上的主机执行端口。

CVSS 7.6 · High EPSS 0.56% · P45
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I. Basic Information for CVE-2022-39241

Vulnerability Information
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Vulnerability Title
Possible Server-Side Request Forgery (SSRF) in webhooks
Source: CVE Program / CVE List V5
Vulnerability Description
Discourse is a platform for community discussion. A malicious admin could use this vulnerability to perform port enumeration on the local host or other hosts on the internal network, as well as against hosts on the Internet. Latest `stable`, `beta`, and `test-passed` versions are now patched. As a workaround, self-hosters can use `DISCOURSE_BLOCKED_IP_BLOCKS` env var (which overrides `blocked_ip_blocks` setting) to stop webhooks from accessing private IPs.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
Discourse 代码问题漏洞
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存在安全漏洞。攻击者利用该漏洞可以枚举本地主机或内部网络上的其他主机以及Internet上的主机执行端口。
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 <= 2.8.9 -

II. Public POCs for CVE-2022-39241

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III. Intelligence Information for CVE-2022-39241

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Vendor Advisories for CVE-2022-39241 (1)

Same Patch Batch · discourse · 2022-11-02 · 3 CVEs total

CVE-2022-39356 8.9 HIGH Discourse user account takeover via email and invite link
CVE-2022-39378 5.3 MEDIUM Displaying user badges can leak topic titles to users that have no access to the topic

IV. Related Vulnerabilities

Same product: discourse
Same vendor: discourse
Same weakness: CWE-918

V. Comments for CVE-2022-39241

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