CVE-2018-13415

high-risk
Published 2018-08-13

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.

Do I need to act?

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32.3% chance of exploitation in next 30 days
EPSS score — higher than 68% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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1 public exploit available
45146
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (1)

Affected Vendors

Plex

References (4)

Exploit http://seclists.org/fulldisclosure/2018/Aug/1
Exploit https://www.exploit-db.com/exploits/45146/
Exploit http://seclists.org/fulldisclosure/2018/Aug/1
Exploit https://www.exploit-db.com/exploits/45146/
53
/ 100
high-risk
Severity 32/34 · Critical
Exploitability 16/34 · Moderate
Exposure 5/34 · Minimal