CVE-2018-13415 — CRITICAL (9.8)

Vulnerability 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.

CVSS Score

9.8

CRITICAL

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Plex	Media Server	1.13.2.5154

Related Weaknesses (CWE)

CWE-611

References

http://seclists.org/fulldisclosure/2018/Aug/1ExploitMailing ListTechnical Description
https://www.exploit-db.com/exploits/45146/ExploitTechnical DescriptionThird Party Advisory
http://seclists.org/fulldisclosure/2018/Aug/1ExploitMailing ListTechnical Description
https://www.exploit-db.com/exploits/45146/ExploitTechnical DescriptionThird Party Advisory

FAQ

What is CVE-2018-13415?

CVE-2018-13415 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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 vul...

How severe is CVE-2018-13415?

CVE-2018-13415 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2018-13415?

Check the references section above for vendor advisories and patch information. Affected products include: Plex Media Server.