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I. Basic Information for CVE-2021-42835
Vulnerability Information

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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
An issue was discovered in Plex Media Server through 1.24.4.5081-e362dc1ee. An attacker (with a foothold in a endpoint via a low-privileged user account) can access the exposed RPC service of the update service component. This RPC functionality allows the attacker to interact with the RPC functionality and execute code from a path of his choice (local, or remote via SMB) because of a TOCTOU race condition. This code execution is in the context of the Plex update service (which runs as SYSTEM).
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
PLEX Plex Media Server 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
PLEX Plex Media Server是瑞士Plex(PLEX)公司的一套媒体播放器及媒体服务器软件。 Plex Media Server 中存在访问控制错误漏洞,该漏洞源于产品更新服务组件中的RPC服务未对用户身份进行有效验证。攻击者可通过该漏洞执行恶意代码。以下产品及版本受到影响:Plex Media Server 1.24.4.5081-e362dc1ee 版本。
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
VendorProductAffected VersionsCPESubscribe
-n/a n/a -
II. Public POCs for CVE-2021-42835
#POC DescriptionSource LinkShenlong Link
1Plex media server local privilige escalation poc - CVE-2021-42835https://github.com/netanelc305/PlEXcalaisonPOC Details
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III. Intelligence Information for CVE-2021-42835
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IV. Related Vulnerabilities
V. Comments for CVE-2021-42835

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