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McAfee Security Bulletin: McAfee Agent patch fixes three Libcurl vulnerabilities
Security Bulletins ID:   SB10131
Last Modified:  4/7/2017
Rated:


Summary

 Impact of Vulnerability:    CVE-2015-3236:
 Authentication Issue (CWE-287)
 Insufficient Session Expiration (CWE-613)
 Broken Authentication and Session Mgt (CWE-930, OWASP 2013:A2)

 CVE-2014-8150:
 CRLF Injection (CWE-93)
 Injection (OWASP 2013:A1)

 CVE-2015-3153:
 Information Exposure (CWE-93)
 Sensitive Data Exposure (OWASP 2013:A6)
 CVE Numbers:
  • CVE-2015-3236
  • CVE-2014-8150
  • CVE-2015-3153
 Severity Rating:  Medium (for all three CVEs)
 Base / Overall CVSS v2 Scores:
  • 5.0 / 3.7 (CVE-2015-3236)
  • 4.3 / 3.2 (CVE-2014-8150)
  • 5.0 / 3.9 (CVE-2015-3153)
 Base / Overall CVSS v3 Scores: (Pre-ratification) 
  • 7.4 / 6.4 (CVE-2015-3236)
  • 4.3 / 3.8 (CVE-2014-8150)
  • 4.3 / 3.9 (CVE-2015-3153)
 Recommendations:  Install or upgrade to MA 4.8.0 Patch 3 HF3 or MA 5.0.2
 Security Bulletin Replacement:  None
 Affected Software:  McAfee Agent 5.0.1 and earlier
 Location of Updated Software:  http://www.mcafee.com/us/downloads/downloads.aspx

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Article contents:

Description

This McAfee Agent release bundles an upgraded Libcurl library which addresses multiple vulnerabilities:
  • One vulnerability allows remote attackers to obtain sensitive information.
  • A second vulnerability could allow an attacker to make an application using Libcurl that accesses a specially crafted URL using an HTTP proxy. An attacker could use this flaw to perform additional requests in a way that was not intended.
  • The last vulnerability could allow the Libcurl default configuration to send custom HTTP headers to both the proxy and destination server, which might allow remote proxy servers to obtain sensitive information by reading the header contents.
 
NOTE: This release of McAfee Agent includes a security patch (http://curl.haxx.se/CVE-2015-3236.patch).
 
CVE-2015-3236:
HTTP Basic authentication credentials issue
https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-3236
 
CWE-287
Improper Authentication
https://cwe.mitre.org/data/definitions/287.html
 
CWE-613
Insufficient Session Expiration
https://cwe.mitre.org/data/definitions/613.html
 
OWASP 2013:A2
Broken Authentication and Session Management
https://www.owasp.org/index.php/OWASP_Top_10
https://www.owasp.org/index.php/Top_10_2013-A2-Broken_Authentication_and_Session_Management
 
This flaw is encountered if you use a version of the McAfee Agent that includes a vulnerable version (7.40.0 to and including 7.42.1) of the Libcurl library. There are no known exploits that exist at this time.
 
Affected Components:
  • McAfee Agent communication with ePolicy Orchestrator (ePO) or update repositories
CVE-2014-8150:
URL request injection
https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-8150
 
CWE-93
CRLF Injection
https://cwe.mitre.org/data/definitions/93.html
 
OWASP 2013:A1
Injection
https://www.owasp.org/index.php/OWASP_Top_10
https://www.owasp.org/index.php/Top_10_2013-A1-Injection
 
This flaw is encountered while using an HTTP proxy, which allows remote attackers to inject arbitrary HTTP headers and conduct HTTP response splitting attacks using CRLF sequences in a URL.
 
Affected Components:
  • McAfee Agent communication with ePO or update repositories
CVE-2015-3153:
URL request injection
https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-3153
 
CWE-93
Information Exposure
https://cwe.mitre.org/data/definitions/200.html
 
OWASP 2013:A6
Sensitive Data Exposure
https://www.owasp.org/index.php/OWASP_Top_10
https://www.owasp.org/index.php/Top_10_2013-A6-Sensitive_Data_Exposure
 
This flaw is encountered if Libcurl sends custom HTTP headers to both the proxy and destination server, which might allow remote proxy servers to obtain sensitive information.
 
Affected Components:
  • McAfee Agent communication with ePO or update repositories

Remediation

Update or install the following McAfee Agent versions to remediate this vulnerability.

Go to the Product Downloads site and download the applicable product patch/hotfix files:
 
Product Type Version File Name Release Date
McAfee Agent 5.0.2 for Windows Patch 5.0.2 MA502WIN.zip August 31, 2015
McAfee Agent 5.0.2 for Linux Patch 5.0.2 MA502LNX.zip August 31, 2015
McAfee Agent 5.0.2 for Mac OS Patch 5.0.2 MA502MAC.zip August 31, 2015
McAfee Agent 5.0.2 for Win Embedded Patch 5.0.2 MA502WIN_Embedded.zip August 31, 2015
McAfee Agent 4.8.0 for Windows Hotfix  4.8.0 Patch3 – HF3 MA480P3HF3WIN.zip August 31, 2015
McAfee Agent 4.8.0 for Linux Hotfix 4.8.0 Patch3 – HF3 MA480P3HF3LNX.zip August 31, 2015
McAfee Agent 4.8.0 for Mac OS        Hotfix 4.8.0 Patch3 – HF3 MA480P3HF3MAC.zip August 31, 2015
McAfee Agent 4.8.0 for Solaris   Hotfix 4.8.0 Patch3 – HF3 MA480P3HF3SOL.zip August 31, 2015
McAfee Agent 4.8.0 for HPUX Hotfix 4.8.0 Patch3 – HF3 MA480P3HF3HPX.zip August 31, 2015
McAfee Agent 4.8.0 for AIX Hotfix 4.8.0 Patch3 – HF3 MA480P3HF3AIX.zip August 31, 2015

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

Product Exposures
If you use HTTP proxies or repositories in your environment, McAfee recommends that you upgrade to this release of McAfee Agent.

Workaround

None. Install the provided patch or hotfix as specified in the Remediation table.

Mitigations

None.

Acknowledgements

This vulnerability was first disclosed by The MITRE Corporation (http://cve.mitre.org/) as a CVE.

Frequently Asked Questions (FAQs)

How do I know whether my McAfee product is vulnerable or not?

For Endpoint products:
Use the following instructions for endpoint or client based products:
  1. Right-click on the McAfee tray shield icon on the Windows task bar.
  2. Select Open Console.
  3. In the console, select Action Menu.
  4. In the Action Menu, select Product Details. The product version is displayed.
For ePO / Server products:
Use the following instructions for server based products:
  • Check the version and build of ePO that is installed. For more information on how to check the version, see: KB52634.
  • Or, create a query in ePO for the product version of the product installed within your organization.
For Appliances:
Use the following instructions for Appliance based products:
  1. Open the Administrator's User Interface (UI).
  2. Click the About link. The product version is displayed.
For DLPe ePO Extension:
Use the following instructions:
  1. Log on to ePO server.
  2. Click Menu, Data Protection, DLP Policy.
  3. Inside the DLP console click the Help menu item, About. The product version is displayed.
What is CVSS?
CVSS, or Common Vulnerability Scoring System, is the result of the National Infrastructure Advisory Council’s effort to standardize a system of assessing the criticality of a vulnerability. This system offers an unbiased criticality score between 0 and 10 that customers can use to judge how critical a vulnerability is and plan accordingly. For more information, please visit the CVSS website at: http://www.first.org/cvss/.

When calculating CVSS v2 scores, McAfee has adopted a philosophy that fosters consistency and repeatability. Our guiding principle for CVSS scoring is to score the exploit under consideration by itself. We consider only the immediate and direct impact of the exploit under consideration. We do not factor into a score any potential follow-on exploits that might be made possible by successful exploitation of the issue being scored.

CVSS v3 scoring is in final review as of March 2015. CVSS v2 will be replaced with CVSS v3 when v3 is fully approved.
https://www.first.org/cvss/v3/development
https://www.first.org/cvss/calculator/3.0
 
What are the CVSS scoring metrics that have been used?
 
CVE-2015-3236:

CVSS v2 Scoring:
 
 Base Score 5.0
 Related exploit range (AccessVector) Network (N)
 Attack complexity (AccessComplexity) Low (L)
 Level of authentication needed (Authentication) None (N)
 Confidentiality impact Partial (P)
 Integrity impact None (N)
 Availability impact None (N)
 Temporal Score (Overall) 3.7
 Availability of exploit (Exploitability) Unproven that Exploit Exists (U)
 Type of fix available (RemediationLevel) Official Fix (OF)
 Level of verification that vulnerability exists (ReportConfidence) Confirmed (C)

NOTE: The below CVSS version 2.0 vector was used to generate this score.
http://nvd.nist.gov/cvss.cfm?calculator&version=2&vector=(AV:N/AC:L/Au:N/C:P/I:N/A:N/E:U/RL:OF/RC:C)

Alternate CVSS v3 Scoring:
 
 Base Score 7.4
 Attack Vector (AV) Network (N)
 Attack Complexity (AC) Low (L)
 Privileges Required (PR) None (N)
 User Interaction (UI) Required (R)
 Scope (S) Changed (C)
Confidentiality (C) High (H)
Integrity (I) None (N)
Availability (A) None (N)
 Temporal Score (Overall) 6.4
 Exploitability (E) Unproven (U)
 Remediation Level (RL) Official Fix (O)
 Report Confidence (RC) Confirmed (C)

NOTE: The below CVSS version 3.0 (beta) vector was used to generate this score.
https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C/CR:H/IR:L/AR:L/MAV:N
 
CVE-2014-8150:

CVSS v2 Scoring:
 
 Base Score 4.3
 Related exploit range (AccessVector) Network (N)
 Attack complexity (AccessComplexity) Medium (M)
 Level of authentication needed (Authentication) None (N)
 Confidentiality impact None (N)
 Integrity impact Partial (P)
 Availability impact None (N)
 Temporal Score (Overall) 3.2
 Availability of exploit (Exploitability) Unproven that Exploit Exists (U)
 Type of fix available (RemediationLevel) Official Fix (OF)
 Level of verification that vulnerability exists (ReportConfidence) Confirmed (C)

NOTE: The below CVSS version 2.0 vector was used to generate this score.
http://nvd.nist.gov/cvss.cfm?calculator&version=2&vector=(AV:N/AC:M/Au:N/C:N/I:P/A:N/E:U/RL:OF/RC:C)

Alternate CVSS v3 Scoring:
 
 Base Score 4.3
 Attack Vector (AV) Network (N)
 Attack Complexity (AC) Low (L)
 Privileges Required (PR) None (N)
 User Interaction (UI) Required (R)
 Scope (S) Unchanged (U)
Confidentiality (C) None (N)
Integrity (I) Low (L)
Availability (A) None (N)
 Temporal Score (Overall) 3.8
 Exploitability (E) Unproven (U)
 Remediation Level (RL) Official Fix (O)
 Report Confidence (RC) Confirmed (C)

NOTE: The below CVSS version 3.0 (beta) vector was used to generate this score.
https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:U/RL:O/RC:C/CR:H/IR:L/AR:L/MAV:N
 
CVE-2015-3153:

CVSS v2 Scoring:
 
 Base Score 5.0
 Related exploit range (AccessVector) Network (N)
 Attack complexity (AccessComplexity) Low (L)
 Level of authentication needed (Authentication) None (N)
 Confidentiality impact Partial (P)
 Integrity impact None (N)
 Availability impact None (N)
 Temporal Score (Overall) 3.9
 Availability of exploit (Exploitability) Proof of concept code (POC)
 Type of fix available (RemediationLevel) Official Fix (OF)
 Level of verification that vulnerability exists (ReportConfidence) Confirmed (C)

NOTE: The below CVSS version 2.0 vector was used to generate this score.
http://nvd.nist.gov/cvss.cfm?calculator&version=2&vector=(AV:N/AC:L/Au:N/C:P/I:N/A:N/E:POC/RL:OF/RC:C)

Alternate CVSS v3 Scoring:
 
 Base Score 4.3
 Attack Vector (AV) Network (N)
 Attack Complexity (AC) Low (L)
 Privileges Required (PR) None (N)
 User Interaction (UI) Required (R)
 Scope (S) Unchanged (U)
Confidentiality (C) Low (L)
Integrity (I) None (N)
Availability (A) None (N)
 Temporal Score (Overall) 3.9
 Exploitability (E) Proof-Of-Concept (P)
 Remediation Level (RL) Official Fix (O)
 Report Confidence (RC) Confirmed (C)

NOTE: The below CVSS version 3.0 (beta) vector was used to generate this score.
https://www.first.org/cvss/calculator/3.0#CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C/CR:H/IR:L/AR:L/MAV:N

Where can I find a list of all security bulletins or how do I report a product vulnerability?
To find a list of all security bulletins, or if you have information about a security issue or vulnerability with a McAfee product, please visit our product security website at: http://www.mcafee.com/us/threat-center/product-security-bulletins.aspx.

Resources

To contact Technical Support, log on to the ServicePortal and go to the Create a Service Request page at https://support.mcafee.com/ServicePortal/faces/serviceRequests/createSR:
  • If you are a registered user, type your User Id and Password, and then click Log In.
  • If you are not a registered user, click Register and complete the required fields. Your password and logon instructions will be emailed to you.

Disclaimer

The information provided in this security bulletin is provided as is without warranty of any kind. McAfee disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. In no event shall McAfee or its suppliers be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits, or special damages, even if McAfee or its suppliers have been advised of the possibility of such damages. Some states do not allow the exclusion or limitation of liability for consequential or incidental damages so the foregoing limitation may not apply.
 
Any future product release dates mentioned in this security bulletin are intended to outline our general product direction and they should not be relied on in making a purchasing decision. The product release dates are for information purposes only, and may not be incorporated into any contract. The product release dates are not a commitment, promise, or legal obligation to deliver any material, code, or functionality. The development, release, and timing of any features or functionality described for our products remains at our sole discretion and may be changed or cancelled at any time.

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