CVE-2018-0940

Microsoft Exchange Elevation of Privilege Vulnerability

CVE-2018-0940 is fixed in 6 products on 1 platform, first by KB4073537, released March 13, 2018. It is not reported as exploited. Patch Radar priority: Routine.

RoutinePublicly disclosed
CVSS
n/a
Moderate
Exploitation
None reported
Exploitation Unlikely
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0728
94th percentile

<p>An elevation of privilege vulnerability exists when Microsoft Exchange Outlook Web Access (OWA) fails to properly sanitize links presented to users. An attacker who successfully exploited this vulnerability could override the OWA interface with a fake login page and attempt to trick the user into disclosing sensitive information.</p> <p>To exploit the vulnerability, an attacker could send a specially crafted email message containing a malicious link to a user. The user would have to click the malicious link in order to be susceptible to the vulnerability.</p> <p>The security update addresses the vulnerability by correcting how Microsoft Exchange rewrites links presented within the body of emails.</p>

Where it's fixed

ProductFixed inFixReleased
Microsoft
Microsoft Exchange Server 2010 Service Pack 3 Update Rollup 20 KB4073537 Mar 13, 2018
Microsoft Exchange Server 2013 Cumulative Update 18 KB4073392 Mar 13, 2018
Microsoft Exchange Server 2013 Cumulative Update 19 KB4073392 Mar 13, 2018
Microsoft Exchange Server 2013 Service Pack 1 KB4073392 Mar 13, 2018
Microsoft Exchange Server 2016 Cumulative Update 7 KB4073392 Mar 13, 2018
Microsoft Exchange Server 2016 Cumulative Update 8 KB4073392 Mar 13, 2018

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