Microsoft Exchange Server
CVE-2018-0940 — Microsoft Exchange Elevation of Privilege Vulnerability
Executive Summary
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. 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. The security update addresses the vulnerability by correcting how Microsoft Exchange rewrites links presented within the body of emails.
Overview
Moderate
MS Severity
Not Exploited
MS Exploit Status
Exploitation Unlikely
MS Exploit Likelihood
EPSS Score
No EPSS score available for this CVE.
View on FIRST.orgAffected Products
6 affected products
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| Microsoft Exchange Server 2010 Service Pack 3 Update Rollup 20 | 4073537 (Security Update) |
Important | Elevation of Privilege | Maybe |
| Microsoft Exchange Server 2013 Cumulative Update 18 | 4073392 (Security Update) |
Moderate | Elevation of Privilege | Maybe |
| Microsoft Exchange Server 2013 Cumulative Update 19 | 4073392 (Security Update) |
Moderate | Elevation of Privilege | Maybe |
| Microsoft Exchange Server 2013 Service Pack 1 | 4073392 (Security Update) |
Moderate | Elevation of Privilege | Maybe |
| Microsoft Exchange Server 2016 Cumulative Update 7 | 4073392 (Security Update) |
Moderate | Elevation of Privilege | Maybe |
| Microsoft Exchange Server 2016 Cumulative Update 8 | 4073392 (Security Update) |
Moderate | Elevation of Privilege | Maybe |
Patches
2 patches
| Article | Type | Restart |
|---|---|---|
4073537 |
Security Update | Maybe |
4073392 |
Security Update | Maybe |
Known Exploits
No known exploits have been linked for this CVE yet. When available, exploit references will be sourced from public repositories and may be unverified, incomplete, or non-functional. Always review code carefully before use in any environment.
Acknowledgments
References
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