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zdiJohn Page (aka hyp3rlinx) - ApparitionSecZDI-18-1133
HistoryOct 10, 2018 - 12:00 a.m.

Microsoft SQL Server Management Studio regsrvr File XML External Entity Processing Information Disclosure Vulnerability

2018-10-1000:00:00
John Page (aka hyp3rlinx) - ApparitionSec
www.zerodayinitiative.com
10

0.003 Low

EPSS

Percentile

66.3%

This vulnerability allows remote attackers to disclose sensitive information on vulnerable installations of Microsoft SQL Server Management Studio. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the handling of REGSRVR files. Due to the improper restriction of XML External Entity (XXE) references, a specially crafted document specifying a URI causes the XML parser to access the URI and embed the contents back into the XML document for further processing. An attacker can leverage this vulnerability to disclose information in the context of the current process.