CVE-2023-33184— Blind SSRF in the Nextcloud Mail app on avatar endpoint
Quick assessment
Affected
nextcloud security-advisories
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.
Nextcloud是德国Nextcloud公司的一套开源的自托管文件同步和共享的通信应用平台。 Nextcloud Mail 存在安全漏洞，该漏洞源于通过 SSRF 攻击，可以允许向在同一 Web 服务器中运行的服务发送 GET 请求。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2023-33184
Vulnerability Information
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Vulnerability Title
Blind SSRF in the Nextcloud Mail app on avatar endpoint
Source: CVE Program / CVE List V5
Vulnerability Description
Nextcloud Mail is a mail app in Nextcloud. A blind SSRF attack allowed to send GET requests to services running in the same web server. It is recommended that the Mail app is update to version 3.02, 2.2.5 or 1.15.3.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/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
Nextcloud 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Nextcloud是德国Nextcloud公司的一套开源的自托管文件同步和共享的通信应用平台。 Nextcloud Mail 存在安全漏洞，该漏洞源于通过 SSRF 攻击，可以允许向在同一 Web 服务器中运行的服务发送 GET 请求。
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 |
|---|---|---|---|---|
| nextcloud | security-advisories | < 1.15.3 | - |
|
II. Public POCs for CVE-2023-33184
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2023-33184 (1)
-
https://github.com/nextcloud/mail/pull/8275 x_refsource_MISC
Vendor Advisories for CVE-2023-33184 (1)
Other References for CVE-2023-33184 (1)
-
https://hackerone.com/reports/1913095 x_refsource_MISC
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V. Comments for CVE-2023-33184
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