XXE in Smartclient
CVE-2020-9352
An issue was discovered in SmartClient 12.0. Unauthenticated exploitation of blind XXE can occur in the downloadWSDL feature by sending a POST request to /tools/developerConsoleOperations.jsp with a valid payload in the _transaction parameter. NOTE: the documentation states "These tools are, by default, available to anyone ... so they should only be deployed into a trusted environment. Alternately, the tools can easily be restricted to administrators or end users by protecting the tools path with normal authentication and authorization mechanisms on the web server."
Vulnerability class: XXE (XML External Entity)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.019 (78.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 79th percentile — 78.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.019 · newest: 0.019 · change: 0.000
Affected products
- Smartclient — versions 12.0
Weakness classification (CWE)
References
- seclists.org/fulldisclosure/2020/Feb/18 (Exploit, Mailing List, Third Party Advisory)
- blog.certimetergroup.com/it/articolo/security/smartclient-v12-xml-external-enti… (Exploit, Third Party Advisory)
- www-demos.smartclient.com/smartclient-12.0/isomorphic/system/reference/
Frequently asked questions
- What is CVE-2020-9352?
- CVE-2020-9352 is a critical-severity vulnerability in Smartclient, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 9.8/10. Published 2020-02-23.
- How severe is CVE-2020-9352?
- Critical severity. CVSS v3 base score is 9.8 out of 10.