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ESB-2016.0429 - [Linux] Symantec Encryption Management Server: Multiple vulnerabilities

Date: 22 February 2016

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             AUSCERT External Security Bulletin Redistribution

  Security Advisories Relating to Symantec Products - Symantec Encryption
                Management Server Multiple Security Issues
                             22 February 2016


        AusCERT Security Bulletin Summary

Product:           Symantec Encryption Management Server
Publisher:         Symantec Encryption
Operating System:  Linux variants
Impact/Access:     Execute Arbitrary Code/Commands -- Existing Account      
                   Increased Privileges            -- Existing Account      
                   Denial of Service               -- Remote/Unauthenticated
                   Access Confidential Data        -- Remote/Unauthenticated
Resolution:        Patch/Upgrade
CVE Names:         CVE-2015-8151 CVE-2015-8150 CVE-2015-8149

Original Bulletin:

- --------------------------BEGIN INCLUDED TEXT--------------------

Security Advisories Relating to Symantec Products - Symantec Encryption 
Management Server Multiple Security Issues


February 18, 2016




CVSS2 Base Score	Impact	Exploitability	CVSS2 Vector
	SEMS OS Remote Command Execution - Medium
5.8			6.4	6.4		AV:N/AC:L/Au:M/C:P/I:P/A:P

	SEMS Local Elevation of Privilege - Medium
6.3			10	2.2		AV:L/AC:M/Au:M/C:C/I:C/A:C

SEMS Heap-based Memory Corruption LDAP Service Crash - Medium
5.0			2.9	10		AV:N/AC:L/Au:N/C:N/I:N/A:P

SEMS Information Disclosure via LDAP Service - Medium
6.4			4.9	10		AV:N/AC:L/Au:N/C:P/I:P/A:N


The management console for Symantec Encryption Management Server (SEMS) is 
susceptible to potential OS command execution, local access elevation of 
privilege, a heap-based memory corruption resulting in a service crash and
potential information disclosure of management console logon/account

Affected Products

Product				Version		Build	Solution(s)

Symantec Encryption Management 	3.3.2 Prior to	All	Update to SEMS 3.3.2 
Server				MP12			MP12


Symantec Encryption Management Server's web administration interface was 
susceptible to command execution on the underlying operating system when an
authorized but less-privileged administrator has console access. Input fields 
available through the server console did not properly filter arbitrary user 
input which could allow OS command execution with elevated privileges.

By leveraging the successful exploitation above, an unauthorized user could have 
scheduled arbitrary commands to run through existing batch files on the 
underlying operating system that normally run with root privileges. This could
have resulted in additional privileged access to the server.

The LDAP service provided by Symantec Encryption Management Server was 
susceptible to heap memory corruption. Specially-crafted request packets could 
result in corrupted memory block headers leading to a SIGSEGV fault and service

By successfully manipulating an LDAP request, it was possible for a user able 
to access the LDAP server to gather information on valid administrator accounts
on the server. This information could potentially be used for further attempts
to gain unauthorized access to the server or network.

Symantec Response
Symantec product engineers have addressed these issues in Symantec Encryption
Management Server 3.3.2 MP12. Customers should update to SEMS 3.3.2 MP12 as
soon as possible to address these issues.

Symantec is not aware of exploitation of or adverse customer impact from this

Update Information
Symantec Encryption Management Server 3.3.2 MP12 is available from Symantec 
File Connect.

Best Practices

As part of normal best practices, Symantec strongly recommends the following:

    Restrict access to administrative or management systems to authorized 
    privileged users.

    Restrict remote access, if required, to trusted/authorized systems only.

    Run under the principle of least privilege where possible to limit the 
    impact of potential exploit.

    Keep all operating systems and applications current with vendor patches.

    Follow a multi-layered approach to security. At a minimum, run both 
    firewall and anti-malware applications to provide multiple points of 
    detection and protection to both inbound and outbound threats.

    Deploy network- and host-based intrusion detection systems to monitor 
    network traffic for signs of anomalous or suspicious activity. This may aid
    in the detection of attacks or malicious activity related to the 
    exploitation of latent vulnerabilities.


Symantec would like to thank Toby Reynolds and Rory McNamara with Gotham 
Digital Science for reporting CVE-2015-8149, 8150, 8151 and working very 
closely with Symantec as they were addressed. Symantec would also like to thank
Harald Buck, Buck IT Consulting, for reporting CVE-2015-8148 and coordinating
closely with Symantec as it was addressed.


CVE: These issues are candidates for inclusion in the CVE list 
(, which standardizes identifiers for security 

BID: Symantec SecurityFocus,, has assigned Bugtraq
IDs (BIDs) to these issues for inclusion in the Security Focus vulnerability

CVE		BID	Description

CVE-2015-8151	BID 83268	SEMS OS Remote Command Execution

CVE-2015-8150	BID 83269	SEMS Local Elevation of Privilege

CVE-2015-8149	BID 83270	SEMS Heap-based Memory Corruption LDAP Service Crash

CVE-2015-8148	BID 83271	SEMS Information Disclosure via LDAP Service

Symantec takes the security and proper functionality of our products very 
seriously. As founding members of the Organization for Internet Safety 
(OISafety), Symantec supports and follows responsible disclosure guidelines.

Please contact if you feel you have discovered a security 
issue in a Symantec product. A member of the Symantec Product Security team
will contact you regarding your submission to coordinate any required response. 
Symantec strongly recommends using encrypted email for reporting vulnerability
information to The Symantec Product Security PGP key can
be found at the location below.

Symantec has developed a Product Vulnerability Response document outlining the
process we follow in addressing suspected vulnerabilities in our products. This
document is available below.

Symantec Vulnerability Response Policy	

Symantec Product Vulnerability Management PGP Key	

Copyright (c) by Symantec Corp.

Permission to redistribute this alert electronically is granted as long as it 
is not edited in any way unless authorized by Symantec Product Security. 
Reprinting the whole or part of this alert in any medium other than 
electronically requires permission from


The information in the advisory is believed to be accurate at the time of 
publishing based on currently available information. Use of the information
constitutes acceptance for use in an AS IS condition. There are no warranties
with regard to this information. Neither the author nor the publisher accepts
any liability for any direct, indirect, or consequential loss or damage
arising from use of, or reliance on, this information.

Symantec, Symantec products, Symantec Product Security, and
are registered trademarks of Symantec Corp. and/or affiliated companies in the
United States and other countries. All other registered and unregistered
trademarks represented in this document are the sole property of their 
respective companies/owners.

* Signature names may have been updated to comply with an updated IPS Signature
naming convention. See 
for more information.

Last modified on: February 18, 2016

- --------------------------END INCLUDED TEXT--------------------

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