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CVE-2021-34808

Quick assessment

Affected
Synology Media Server
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.

Synology Media Server是一个媒体服务器。 Synology Media Server 1.8.3-2881 之前版本存在代码问题漏洞，该漏洞源于cgi组件的服务器端请求伪造(Server- Server Request Forgery, SSRF)漏洞，远程攻击者可利用该漏洞通过未指定的载体访问内网资源。

CVSS 5.8 · Medium EPSS 1.02% · P62
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I. Basic Information for CVE-2021-34808

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Server-Side Request Forgery (SSRF) vulnerability in cgi component in Synology Media Server before 1.8.3-2881 allows remote attackers to access intranet resources via unspecified vectors.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/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
Synology Media Server 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Synology Media Server是一个媒体服务器。 Synology Media Server 1.8.3-2881 之前版本存在代码问题漏洞，该漏洞源于cgi组件的服务器端请求伪造(Server- Server Request Forgery, SSRF)漏洞，远程攻击者可利用该漏洞通过未指定的载体访问内网资源。
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
Synology Media Server unspecified ~ 1.8.3-2881 -

II. Public POCs for CVE-2021-34808

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III. Intelligence Information for CVE-2021-34808

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Other References for CVE-2021-34808 (1)

Same Patch Batch · Synology · 2021-06-18 · 5 CVEs total

CVE-2021-34810 9.9 CRITICAL Synology Download Station 安全漏洞
CVE-2021-34809 9.9 CRITICAL Synology Download Station 命令注入漏洞
CVE-2021-34812 5.8 MEDIUM Synology Calendar 信任管理问题漏洞
CVE-2021-34811 5.0 MEDIUM Synology Download Station 代码问题漏洞

IV. Related Vulnerabilities

Same product: Media Server
Same vendor: Synology
Same weakness: CWE-918

V. Comments for CVE-2021-34808

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