CRITICAL

CVE-2018-13415

CVSS v3

9.8

CRITICAL

EPSS Score

33.4%

exploit probability

CISA KEV

No

known exploited

Exploitation

SSVC status

Description

In Plex Media Server 1.13.2.5154, the XML parsing engine for SSDP/UPnP functionality is vulnerable to an XML External Entity Processing (XXE) attack. Remote, unauthenticated attackers can use this vulnerability to: (1) Access arbitrary files from the filesystem with the same permission as the user account running Plex, (2) Initiate SMB connections to capture a NetNTLM challenge/response and crack to cleartext password, or (3) Initiate SMB connections to relay a NetNTLM challenge/response and achieve Remote Command Execution in Windows domains.

Technical details

Published
8/13/2018

Frequently asked questions

What is CVE-2018-13415?

In Plex Media Server 1.13.2.5154, the XML parsing engine for SSDP/UPnP functionality is vulnerable to an XML External Entity Processing (XXE) attack. Remote, unauthenticated attackers can use this vulnerability to: (1) Access arbitrary files from the filesystem with the same permission as the user account running Plex, (2) Initiate SMB connections to capture a NetNTLM challenge/response and crack to cleartext password, or (3) Initiate SMB connections to relay a NetNTLM challenge/response and achieve Remote Command Execution in Windows domains.

Is CVE-2018-13415 actively exploited?

Active exploitation of CVE-2018-13415 has not been confirmed. The EPSS score is 33.4%, indicating the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2018-13415?

CVE-2018-13415 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2018-13415 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.