CVE-2018-8527 — An information disclosure vulnerability exists in Microsoft SQL Server Managemen

An information disclosure vulnerability exists in Microsoft SQL Server Management Studio (SSMS) when parsing a malicious XEL file containing a reference to an external entity, aka "SQL Server Management Studio Information Disclosure Vulnerability." This affects SQL Serv

01What is this vulnerability?

An information disclosure vulnerability exists in Microsoft SQL Server Management Studio (SSMS) when parsing a malicious XEL file containing a reference to an external entity, aka "SQL Server Management Studio Information Disclosure Vulnerability." This affects SQL Server Management Studio 17.9, SQL Server Management Studio 18.0. This CVE ID is unique from CVE-2018-8532, CVE-2018-8533.

02Affected products

Vendor	Product	Versions
Microsoft	SQL Server Management Studio 17.9	SQL Server Management Studio 17.9
Microsoft	SQL Server Management Studio 18.0	(Preview 4)

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

08Timeline

• Published: 2018-10-10T13:00:00.000Z
• Last modified: 2024-08-05T07:02:25.483Z

09References

• portal.msrc.microsoft.com — https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8527
• www.securityfocus.com — http://www.securityfocus.com/bid/105474
• www.securitytracker.com — http://www.securitytracker.com/id/1041826
• www.exploit-db.com — https://www.exploit-db.com/exploits/45585/