HOMEVULNERABILITIESCVE-2020-9352
CRITICAL

CVE-2020-9352

CWE-611Published: February 23, 2020· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

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."

NVD Source

Technical Analysis

CVE-2020-9352 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

smartclient1 product(s)
smartclient
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://blog.certimetergroup.com/it/articolo/security/smartclient-v12-xml-external-entity--cve-2020-9352
ADVISORYhttps://seclists.org/fulldisclosure/2020/Feb/18
ADVISORYhttps://blog.certimetergroup.com/it/articolo/security/smartclient-v12-xml-external-entity--cve-2020-9352
ADVISORYhttps://seclists.org/fulldisclosure/2020/Feb/18

All References (6)

→
https://blog.certimetergroup.com/it/articolo/security/smartclient-v12-xml-external-entity--cve-2020-9352Exploit · Third Party Advisory
→
https://seclists.org/fulldisclosure/2020/Feb/18Exploit · Mailing List · Third Party Advisory
→
https://www-demos.smartclient.com/smartclient-12.0/isomorphic/system/reference/?id=group..toolsDeployment
→
https://blog.certimetergroup.com/it/articolo/security/smartclient-v12-xml-external-entity--cve-2020-9352Exploit · Third Party Advisory
→
https://seclists.org/fulldisclosure/2020/Feb/18Exploit · Mailing List · Third Party Advisory
→
https://www-demos.smartclient.com/smartclient-12.0/isomorphic/system/reference/?id=group..toolsDeployment

Quick Facts

CVE IDCVE-2020-9352
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-611
CISA KEVNo
Affected1 vendor(s)
PublishedFeb 23, 2020

Related CVEs (CWE-611)

CVE-2018-1000652
10.0
CVE-2018-1000651
10.0
CVE-2017-7664
10.0
CVE-2018-1000124
10.0
CVE-2018-1000644
10.0
CVE-2018-1000822
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2020-9352 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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