CVE-2018-8159 : An elevation of privilege vulnerability exists when Microsoft Exchange Outlook Web Access (OWA) fails to properly handle

An elevation of privilege vulnerability exists when Microsoft Exchange Outlook Web Access (OWA) fails to properly handle web requests, aka "Microsoft Exchange Elevation of Privilege Vulnerability." This affects Microsoft Exchange Server.

Published 2018-05-09 19:29:02

Updated 2019-10-03 00:03:26

Source Microsoft Corporation

View at NVD, CVE.org

Vulnerability category: Cross site scripting (XSS)Gain privilege

Exploit prediction scoring system (EPSS) score for CVE-2018-8159

EPSS FAQ

0.36%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 69 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2018-8159

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
5.8	MEDIUM	AV:N/AC:M/Au:N/C:P/I:P/A:N	8.6	4.9	NIST
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: None
5.4	MEDIUM	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N	2.8	2.5	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Unchanged Confidentiality: Low Integrity: Low Availability: None

CWE ids for CVE-2018-8159

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2018-8159

http://www.securityfocus.com/bid/104056

Microsoft Exchange Server CVE-2018-8159 Remote Privilege Escalation Vulnerability
Third Party Advisory;VDB Entry
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8159

CVE-2018-8159 | Microsoft Exchange Elevation of Privilege Vulnerability
Patch;Vendor Advisory
http://www.securitytracker.com/id/1040850

Microsoft Exchange Server Multiple Flaws Let Remote Users Spoof Content, Inject Scripting Code, Obtain Potentially Sensitive Information, and Execute Arbitrary Code - SecurityTracker
Third Party Advisory;VDB Entry

CVEs referencing this url

Products affected by CVE-2018-8159

Microsoft » Exchange Server » Version: 2016 Update Cumulative Update 8
cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_8:*:*:*:*:*:*
Matching versions
Microsoft » Exchange Server » Version: 2013 Update Cumulative Update 19
cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_19:*:*:*:*:*:*
Matching versions
Microsoft » Exchange Server » Version: 2013 Update Cumulative Update 20
cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_20:*:*:*:*:*:*
Matching versions
Microsoft » Exchange Server » Version: 2016 Update Cumulative Update 9
cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_9:*:*:*:*:*:*
Matching versions

Vulnerability Details : CVE-2018-8159

Exploit prediction scoring system (EPSS) score for CVE-2018-8159

CVSS scores for CVE-2018-8159

CWE ids for CVE-2018-8159

References for CVE-2018-8159

Products affected by CVE-2018-8159