XXE in Spirton Universal Media Server
CVE-2018-13416
In Universal Media Server (UMS) 7.1.0, 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 UMS, (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.
Vulnerability class: XXE (XML External Entity)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.202 (97.4th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 97th percentile — 97.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.202 · newest: 0.202 · change: 0.000
Affected products
- Spirton Universal Media Server — versions 7.1.0
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/45133/ (Exploit, VDB Entry, Third Party Advisory, exploit)
- seclists.org/fulldisclosure/2018/Jul/94 (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-13416?
- CVE-2018-13416 is a critical-severity vulnerability in Spirton Universal Media Server, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 9.8/10. Published 2018-08-03.
- How severe is CVE-2018-13416?
- Critical severity. CVSS v3 base score is 9.8 out of 10.