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AUSCERT External Security Bulletin Redistribution
ESB-2018.0716
Security update for McAfee ePolicy Orchestrator fixes stored
XSS, directory traversal
12 March 2018
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AusCERT Security Bulletin Summary
---------------------------------
Product: ePolicy Orchestrator
Publisher: McAfee
Operating System: Windows
Impact/Access: Cross-site Scripting -- Remote with User Interaction
Unauthorised Access -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2018-6660 CVE-2018-6659
Original Bulletin:
https://kc.mcafee.com/corporate/index?page=content&id=SB10228
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McAfee Security Bulletin – ePolicy Orchestrator update fixes Cross-Site
Scripting (CVE-2018-6659) and Directory Traversal (CVE-2018-6660)
vulnerabilities
Security Bulletin ID: SB10228
First Published: March 9, 2018
Last Modified: March 9, 2018
Summary
Impact of Vulnerability: Cross-Site Scripting (XSS) (CWE-79) Directory Traversal
(CWE-22)
CVE ID: CVE-2018-6659 CVE-2018-6660
Severity Rating: Low, Medium
v3 Base/Temporal Scores: 3.7/3.4 6.2/5.6
Upgrade to the latest ePolicy Orchestrator (ePO) patch
Security Bulletin Replacement: None
Affected Software:
* ePO 5.3.2, 5.3.1, and 5.3.0
* ePO 5.9.0
Location of updated software:
http://www.mcafee.com/us/downloads/downloads.aspx
CVE-2018-6659
Reflected Cross-Site Scripting vulnerability in ePO.
It was found that ePO does not sanitize the user input leading to one XSS issue.
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-6659
CVE-2018-6660
Directory Traversal vulnerability in ePO.
It was found that ePO does not properly validate the path when exporting a
particular XML file. Affected ePO versions also allow the usage of Windows
alternate data streams, which could be used to bypass the file extensions.
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-6660
Affected Component:
* ePO core services
Remediation
To remediate this issue:
* Users of ePO 5.3.2 or earlier are recommended to upgrade to ePO 5.3.3 or
5.9.1.
* Users of ePO 5.9.0 are recommended to upgrade to ePO 5.9.1.
Go to the Product Downloads site and download the applicable product patch
files:
Product Type File Name Release Date
ePO 5.9.1 Patch EPO591L.zip November 30, 2017
ePO 5.3.3 Patch EPO533L.zip July 26, 2017
Download and Installation Instructions
See KB56057 for instructions on how to download McAfee products, documentation,
security updates, patches, and hotfixes. Review the Release Notes and the
Installation Guide, which you can download from the Documentation tab, for
instructions on how to install these updates.
Product Specific Notes
ePO 5.1.x is currently End of Life (EOL). McAfee recommends that all customers
using ePO 5.1.x upgrade to 5.3.x or 5.9.x.
Workaround
None. McAfee strongly encourages installing the latest ePO patch specified in
the Remediation table. Acknowledgements
McAfee credits Christoffer Wiman from basalt for reporting this flaw. Frequently
Asked Questions (FAQs)
How do I know if my McAfee product is vulnerable or not?
For ePO/Server products:
Use the following instructions for server-based products:
* Check the version and build of ePO that is installed. For information on how
to check the version, see: KB52634.
* Create a query in ePO for the product version of the product installed within
your organization. What is CVSS?
1) CVE-2018-6659: ePO Cross-Site Scripting vulnerability
Base Score 3.7
Attack Vector (AV) Network (N)
AttackComplexity (AC) High (H)
Privileges Required (PR) Low (L)
User Interaction (UI) Required (R)
Scope (S) Unchanged (U)
Confidentiality (C) Low (L)
Integrity (I) None (N)
Availability (A) Low (L)
Temporal Score (Overall) 3.4
Exploitability (E) Proof-of-Concept (P)
Remediation Level (RL) Official Fix (O)
Report Confidence (RC) Confirmed (C)
NOTE: The below CVSS version 3.0 vector was used to generate this score.
https://nvd.nist.gov/vuln-metrics/cvss/v3-
calculator?vector=AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:L/E:P/RL:O/RC:C
2) CVE-2018-6660: ePO Directory Traversal vulnerability
Base Score 6.2
Attack Vector (AV) Network (N)
AttackComplexity (AC) High (H)
Privileges Required (PR) High (H)
User Interaction (UI) Required (R)
Scope (S) Changed (C)
Confidentiality (C) None (N)
Integrity (I) Low (L)
Availability (A) High (H)
Temporal Score (Overall) 5.6
Exploitability (E) Proof-of-Concept (P)
Remediation Level (RL) Official Fix (O)
Report Confidence (RC) Confirmed (C)
NOTE: The below CVSS version 3.0 vector was used to generate this score.
https://nvd.nist.gov/vuln-metrics/cvss/v3-
calculator?vector=AV:N/AC:H/PR:H/UI:R/S:C/C:N/I:L/A:H/E:P/RL:O/RC:C
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