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===========================================================================
             AUSCERT External Security Bulletin Redistribution

                               ESB-2017.0495
            K12685114: BIG-IP REST vulnerability CVE-2016-6249
                             23 February 2017

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           BIG-IP
Publisher:         F5 Networks
Operating System:  Network Appliance
Impact/Access:     Access Privileged Data -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2016-6249  

Original Bulletin: 
   https://support.f5.com/csp/article/K12685114

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K12685114: BIG-IP REST vulnerability CVE-2016-6249

Security Advisory

Vulnerability Description

BIG-IP REST requests which timeout during user account authentication may log
sensitive attributes such as password in plaintext to 
/var/log/restjavad.0.log. (CVE-2016-6249)

Impact

An attacker may be able to gain access to sensitive information.

Security Issue Status

F5 Product Development has assigned ID 604442 (BIG-IP) to this vulnerability.

To determine if your release is known to be vulnerable, the components or 
features that are affected by the vulnerability, and for information about 
releases or hotfixes that address the vulnerability, refer to the following 
table:
					
Product			Versions known to be 	Versions known to be	Severity	Vulnerable component or feature
			vulnerable	 	not vulnerable	
BIG-IP LTM		12.0.0	11.5.0 - 11.6.1 12.1.0 - 12.1.2		Medium		REST Framework Logging
						12.0.0 HF4
						11.6.1 HF2
						11.6.0 HF8
						11.4.1
						11.2.1              									

BIG-IP AAM		12.0.0			12.1.0 - 12.1.2		Medium		REST Framework Logging
			11.5.0 - 11.6.1  	12.0.0 HF4            	              
						11.6.1 HF2
						11.6.0 HF8
						11.4.1              	

BIG-IP AFM      	12.0.0			12.1.0 - 12.1.2		Medium		REST Framework Logging
			11.5.0 - 11.6.1         12.0.0 HF4     	              
						11.6.1 HF2
						11.6.0 HF8
						11.4.1              	

BIG-IP Analytics	12.0.0			12.1.0 - 12.1.2		Medium		REST Framework Logging
			11.5.0 - 11.6.1   	12.0.0 HF4           	              
						11.6.1 HF2
						11.6.0 HF8
						11.4.1
						11.2.1
              	
BIG-IP APM	    	12.0.0			12.1.0 - 12.1.2		Medium		REST Framework Logging
			11.5.0 - 11.6.1         12.0.0 HF4     	              
						11.6.1 HF2
						11.6.0 HF8
						11.4.1
						11.2.1              	

BIG-IP ASM	   	12.0.0			12.1.0 - 12.1.2		Medium		REST Framework Logging
			11.5.0 - 11.6.1    	12.0.0 HF4          	              
						11.6.1 HF2
						11.6.0 HF8
						11.4.1
						11.2.1              	

BIG-IP DNS		12.0.0			12.1.0 - 12.1.2		Medium		REST Framework Logging

BIG-IP Edge Gateway	None			11.2.1			Not vulnerable	None

BIG-IP GTM		11.5.0 - 11.6.1         11.6.1 HF2		Medium	REST 	Framework Logging
						11.6.0 HF8
						11.4.1
						11.2.1              	

BIG-IP Link Controller 	12.0.0			12.1.0 - 12.1.2		Medium	REST 	Framework Logging
						11.5.0 - 11.6.1              	              
						11.6.1 HF2
						11.6.0 HF8
						11.4.1
						11.2.1              	

BIG-IP PEM	      	12.0.0			12.1.0 - 12.1.2		Medium		REST Framework Logging
						11.5.0 - 11.6.1              	              
						11.6.1 HF2
						11.6.0 HF8
						11.4.1              	

BIG-IP PSM		None			11.4.1			Not vulnerable	None

BIG-IP WebAccelerator	None			11.2.1			Not vulnerable	None

BIG-IP WOM		None			11.2.1			Not vulnerable	None

BIG-IP WebSafe	        12.0.0			12.1.0 - 12.1.2		Medium		REST Framework Logging
						11.6.0 - 11.6.1              	              
						11.6.1 HF2
						11.6.0 HF8              	

ARX			None			6.2.0 - 6.4.0		Not vulnerable	None

Enterprise Manager	None			3.1.1			Not vulnerable	None

FirePass		None			7.0.0			Not vulnerable	None

BIG-IQ Cloud		None			4.0.0 - 4.5.0		Not vulnerable	None

BIG-IQ Device		None			4.2.0 - 4.5.0		Not vulnerable	None

BIG-IQ Security		None			4.0.0 - 4.5.0		Not vulnerable	None

BIG-IQ ADC		None			4.5.0			Not vulnerable	None

BIG-IQ Centralized 	None	       		5.0.0			Not vulnerable	None
Management					4.6.0 
					             	
BIG-IQ Cloud and 	None			1.0.0			Not vulnerable	None
Orchestration	

F5 iWorkflow		None			2.0.0			Not vulnerable	None

LineRate		None			2.5.0 - 2.6.1		Not vulnerable	None

Traffix SDC		None	              	5.0.0			Not vulnerable	None
						4.0.0 - 4.4.0              	

Vulnerability Recommended Actions

If you are running a version listed in the Versions known to be vulnerable 
column, you can eliminate this vulnerability by upgrading to a version listed
in the Versions known to be not vulnerable column. If the table lists only an
older version than what you are currently running, or does not list a 
non-vulnerable version, then no upgrade candidate currently exists.

To determine the necessary upgrade path for your BIG-IQ system, you should 
understand the BIG-IQ product offering name changes. For more information, 
refer to K21232150: Considerations for upgrading BIG-IQ or F5 iWorkflow 
systems.

Mitigation

To mitigate this vulnerability, you can manually review the 
/var/log/restjavad.0.log file, and remove clear text passwords.

Impact of action: Performing the following procedure should not have a 
negative impact on your system.

Supplemental Information

K9970: Subscribing to email notifications regarding F5 products

K9957: Creating a custom RSS feed to view new and updated documents

K4602: Overview of the F5 security vulnerability response policy

K4918: Overview of the F5 critical issue hotfix policy

K167: Downloading software and firmware from F5

K13123: Managing BIG-IP product hotfixes (11.x - 12.x)

K9502: BIG-IP hotfix matrix

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