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.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 31.8%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.
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 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 31.81% probability · 98th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-611
- Affected
- plex/media server
- Source
- cve@mitre.org
References
- http://seclists.org/fulldisclosure/2018/Aug/1Exploit, Mailing List, Technical Description, Third Party Advisory
- https://www.exploit-db.com/exploits/45146/Exploit, Technical Description, Third Party Advisory, VDB Entry
- http://seclists.org/fulldisclosure/2018/Aug/1Exploit, Mailing List, Technical Description, Third Party Advisory
- https://www.exploit-db.com/exploits/45146/Exploit, Technical Description, Third Party Advisory, VDB Entry
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.