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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2017.2719 K02692210: BIG-IP virtual server with HTTP Explicit Proxy and/or SOCKS vulnerability CVE-2017-6157 27 October 2017 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: F5 BIG-IP products Publisher: F5 Networks Operating System: Network Appliance Virtualisation Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated Modify Arbitrary Files -- Remote/Unauthenticated Access Confidential Data -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2017-6157 Original Bulletin: https://support.f5.com/csp/article/K02692210 - --------------------------BEGIN INCLUDED TEXT-------------------- K02692210: BIG-IP virtual server with HTTP Explicit Proxy and/or SOCKS vulnerability CVE-2017-6157 Security Advisory Original Publication Date: Oct 27, 2017 Applies to (see versions): o Product: BIG-IQ, BIG-IQ Cloud, BIG-IQ Device, BIG-IQ Security, BIG-IQ ADC, BIG-IQ Centralized Management - 5.3.0, 5.2.0, 5.1.0, 5.0.0, 4.6.0, 4.5.0, 4.4.0, 4.3.0, 4.2.0, 4.1.0, 4.0.0 o Product: BIG-IP, BIG-IP AAM, BIG-IP AFM, BIG-IP Analytics, BIG-IP APM, BIG-IP ASM, BIG-IP DNS, BIG-IP Edge Gateway, BIG-IP GTM, BIG-IP Link Controller, BIG-IP LTM, BIG-IP PEM, BIG-IP PSM, BIG-IP WebAccelerator - 13.0.0, 12.1.2, 12.1.1, 12.1.0, 12.0.0, 11.6.2, 11.6.1, 11.6.0, 11.5.5, 11.5.4, 11.5.3, 11.5.2, 11.5.1, 11.5.0, 11.4.1, 11.4.0, 11.2.1 o Product: Enterprise Manager - 3.1.1 o Product: F5 iWorkflow - 2.3.0, 2.2.0, 2.1.0, 2.0.2, 2.0.1, 2.0.0 o Product: LineRate - 2.6.1, 2.6.0, 2.5.2, 2.5.1, 2.5.0 o Product: ARX, ARX - 6.4.0, 6.3.0, 6.2.0 o Product: F5 WebSafe - 1.0.0 o Product: Traffix SDC - 5.1.0, 4.4.0, 4.0.5, 4.0.2, 4.0.0 o Product: BIG-IQ Cloud and Orchestration - 1.0.0 Security Advisory Description BIG-IP virtual servers with a configuration using the HTTP Explicit Proxy functionality and/or SOCKS profile are vulnerable to an unauthenticated, remote attack that allows modification of BIG-IP system configuration, extraction of sensitive system files, and/or possible remote command execution on the BIG-IP system. (CVE-2017-6157) Note: This vulnerability covers the scenarios that were not addressed in K35520031: BIG-IP virtual server with HTTP Explicit Proxy and/or SOCKS vulnerability CVE-2016-5700. F5 Technical Support has no additional information about this issue. Impact When this vulnerability is successfully exploited, a remote attacker may be able to modify the system configuration or extract sensitive system files. Security Advisory Status F5 Product Development has assigned ID 614097 and 614147 (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: +--------------+-----------+-------------+----------+-------------------------+ | |Versions |Versions | | | |Product |known to be|known to be |Severity |Vulnerable component or | | |vulnerable |not | |feature | | | |vulnerable | | | +--------------+-----------+-------------+----------+-------------------------+ | |12.0.0 - |13.0.0 | | | | |12.1.1 |12.1.2 | |Virtual server with HTTP | |BIG-IP LTM |11.6.0 - |11.6.2 |Medium |Explicit Proxy and/or a | | |11.6.1 |11.5.5 | |SOCKS profile enabled | | |11.5.0 - |11.4.1 | | | | |11.5.4 |11.2.1 | | | +--------------+-----------+-------------+----------+-------------------------+ | |12.0.0 - |13.0.0 | | | | |12.1.1 |12.1.2 | |Virtual server with HTTP | |BIG-IP AAM |11.6.0 - |11.6.2 |Medium |Explicit Proxy and/or a | | |11.6.1 |11.5.5 | |SOCKS profile enabled | | |11.5.0 - |11.4.1 | | | | |11.5.4 | | | | +--------------+-----------+-------------+----------+-------------------------+ | |12.0.0 - |13.0.0 | | | | |12.1.1 |12.1.2 | |Virtual server with HTTP | |BIG-IP AFM |11.6.0 - |11.6.2 |Medium |Explicit Proxy and/or a | | |11.6.1 |11.5.5 | |SOCKS profile enabled | | |11.5.0 - |11.4.1 | | | | |11.5.4 | | | | +--------------+-----------+-------------+----------+-------------------------+ | | |13.0.0 | | | | | |12.0.0 - | | | |BIG-IP |None |12.1.2 |Not |None | |Analytics | |11.4.1 - |vulnerable| | | | |11.6.2 | | | | | |11.2.1 | | | +--------------+-----------+-------------+----------+-------------------------+ | |12.0.0 - |13.0.0 | | | | |12.1.1 |12.1.2 | |Virtual server with HTTP | |BIG-IP APM |11.6.0 - |11.6.2 |Medium |Explicit Proxy and/or a | | |11.6.1 |11.5.5 | |SOCKS profile enabled | | |11.5.0 - |11.4.1 | | | | |11.5.4 |11.2.1 | | | +--------------+-----------+-------------+----------+-------------------------+ | |12.0.0 - |13.0.0 | | | | |12.1.1 |12.1.2 | |Virtual server with HTTP | |BIG-IP ASM |11.6.0 - |11.6.2 |Medium |Explicit Proxy and/or a | | |11.6.1 |11.5.5 | |SOCKS profile enabled | | |11.5.0 - |11.4.1 | | | | |11.5.4 |11.2.1 | | | +--------------+-----------+-------------+----------+-------------------------+ | | |13.0.0 |Not | | |BIG-IP DNS |None |12.0.0 - |vulnerable|None | | | |12.1.2 | | | +--------------+-----------+-------------+----------+-------------------------+ |BIG-IP Edge |None |11.2.1 |Not |None | |Gateway | | |vulnerable| | +--------------+-----------+-------------+----------+-------------------------+ | | |11.4.1 - |Not | | |BIG-IP GTM |None |11.6.2 |vulnerable|None | | | |11.2.1 | | | +--------------+-----------+-------------+----------+-------------------------+ | |12.0.0 - |13.0.0 | | | | |12.1.1 |12.1.2 | |Virtual server with HTTP | |BIG-IP Link |11.6.0 - |11.6.2 |Medium |Explicit Proxy and/or a | |Controller |11.6.1 |11.5.5 | |SOCKS profile enabled | | |11.5.0 - |11.4.1 | | | | |11.5.4 |11.2.1 | | | +--------------+-----------+-------------+----------+-------------------------+ | |12.0.0 - |13.0.0 | | | | |12.1.1 |12.1.2 | |Virtual server with HTTP | |BIG-IP PEM |11.6.0 - |11.6.2 |Medium |Explicit Proxy and/or a | | |11.6.1 |11.5.5 | |SOCKS profile enabled | | |11.5.0 - |11.4.1 | | | | |11.5.4 | | | | +--------------+-----------+-------------+----------+-------------------------+ |BIG-IP PSM |None |11.4.1 |Not |None | | | | |vulnerable| | +--------------+-----------+-------------+----------+-------------------------+ |BIG-IP |None |11.2.1 |Not |None | |WebAccelerator| | |vulnerable| | +--------------+-----------+-------------+----------+-------------------------+ | |12.0.0 - |13.0.0 | |Virtual server with HTTP | |BIG-IP WebSafe|12.1.1 |12.1.2 |Medium |Explicit Proxy and/or a | | |11.6.0 - |11.6.2 | |SOCKS profile enabled | | |11.6.1 | | | | +--------------+-----------+-------------+----------+-------------------------+ |ARX |None |6.2.0 - 6.4.0|Not |None | | | | |vulnerable| | +--------------+-----------+-------------+----------+-------------------------+ |Enterprise |None |3.1.1 |Not |None | |Manager | | |vulnerable| | +--------------+-----------+-------------+----------+-------------------------+ |BIG-IQ Cloud |None |4.0.0 - 4.5.0|Not |None | | | | |vulnerable| | +--------------+-----------+-------------+----------+-------------------------+ |BIG-IQ Device |None |4.2.0 - 4.5.0|Not |None | | | | |vulnerable| | +--------------+-----------+-------------+----------+-------------------------+ |BIG-IQ |None |4.0.0 - 4.5.0|Not |None | |Security | | |vulnerable| | +--------------+-----------+-------------+----------+-------------------------+ |BIG-IQ ADC |None |4.5.0 |Not |None | | | | |vulnerable| | +--------------+-----------+-------------+----------+-------------------------+ |BIG-IQ | |5.0.0 - 5.3.0|Not | | |Centralized |None |4.6.0 |vulnerable|None | |Management | | | | | +--------------+-----------+-------------+----------+-------------------------+ |BIG-IQ Cloud | | |Not | | |and |None |1.0.0 |vulnerable|None | |Orchestration | | | | | +--------------+-----------+-------------+----------+-------------------------+ |F5 iWorkflow |None |2.0.0 - 2.3.0|Not |None | | | | |vulnerable| | +--------------+-----------+-------------+----------+-------------------------+ |LineRate |None |2.5.0 - 2.6.1|Not |None | | | | |vulnerable| | +--------------+-----------+-------------+----------+-------------------------+ |Traffix SDC |None |5.0.0 - 5.1.0|Not |None | | | |4.0.0 - 4.4.0|vulnerable| | +--------------+-----------+-------------+----------+-------------------------+ Security Advisory 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. Only virtual servers with configurations using the HTTP Explicit Proxy functionality and/or SOCKS profile are vulnerable. The HTTP Explicit Proxy functionality is enabled when an HTTP profile associated with a virtual server has the Proxy Mode setting configured with the Explicit value. In the following HTTP profile configuration snippet example, an HTTP profile is configured with the Explicit Proxy functionality: ltm profile http /Common/My_HTTP_explicit_profile { app-service none defaults-from /Common/http-explicit explicit-proxy { default-connect-handling allow dns-resolver /Common/My_DNS_resolver } proxy-type explicit } The following profile configuration snippet example shows a typical SOCKS profile: ltm profile socks My_SOCKS_profile { app-service none defaults-from socks dns-resolver My_DNS_resolver } To determine if your BIG-IP system has a virtual server configuration using the HTTP Explicit Proxy functionality and/or SOCKS profile, perform the following procedures: o Determining the HTTP profiles configured with the Explicit Proxy functionality o Determining the SOCKS profiles configured on the system o Determining the virtual servers that are enabled with the HTTP Explicit Proxy functionality and/or SOCKS profile Determining the HTTP profiles configured with the Explicit Proxy functionality Impact of action: Performing the following procedure should not have a negative impact on your system. 1. Log in to the TMOS Shell (tmsh) by typing the following command: tmsh 2. List the HTTP profiles that are configured with the Explicit Proxy functionality by typing the following command: list ltm profile http proxy-type | grep -B 1 explicit 3. Note the names of the HTTP profiles. You will use the noted profile names to determine which virtual server is enabled with the HTTP Explicit Proxy functionality in the final procedure. Determining the SOCKS profiles configured on the system Impact of action: Performing the following procedure should not have a negative impact on your system. 1. Log in to tmsh by typing the following command: tmsh 2. List the SOCKS profile configured on your BIG-IP system by typing the following command: list ltm profile socks 3. Note the names of the configured SOCKS profiles. You will use the profile names to determine which virtual server is enabled with the SOCKS profile in the final procedure. Determining the virtual servers that are enabled with the HTTP Explicit Proxy functionality and/or SOCKS profile Impact of action: Performing the following procedure should not have a negative impact on your system. 1. Log in to tmsh by typing the following command: tmsh 2. Using the profile names obtained from the previous procedures, determine the virtual servers that are enabled with the HTTP Explicit Proxy functionality and/or SOCKS profile by using the following command syntax: list ltm virtual all profiles | grep -B 2 <profile name> For example, you would type the following command to determine which virtual server is using the My_HTTP_explicit_profile profile: list ltm virtual all profiles | grep -B 2 My_HTTP_explicit_profile 3. Repeat step 2 for the remaining profile names obtained from previous procedures. Mitigation None Supplemental Information o K9970: Subscribing to email notifications regarding F5 products o K9957: Creating a custom RSS feed to view new and updated documents o K4602: Overview of the F5 security vulnerability response policy o K4918: Overview of the F5 critical issue hotfix policy o K167: Downloading software and firmware from F5 o K13123: Managing BIG-IP product hotfixes (11.x - 13.x) o K9502: BIG-IP hotfix matrix Applies to (see versions): o ARX: - 6.4.0, 6.3.0, 6.2.0 o BIG-IP AAM: - 13.0.0, 12.1.2, 12.1.1, 12.1.0, 12.0.0, 11.6.2, 11.6.1, 11.6.0, 11.5.5, 11.5.4, 11.5.3, 11.5.2, 11.5.1, 11.5.0, 11.4.1, 11.4.0, 11.2.1 o BIG-IP AFM: - 13.0.0, 12.1.2, 12.1.1, 12.1.0, 12.0.0, 11.6.2, 11.6.1, 11.6.0, 11.5.5, 11.5.4, 11.5.3, 11.5.2, 11.5.1, 11.5.0, 11.4.1, 11.4.0, 11.2.1 o BIG-IP APM: - 13.0.0, 12.1.2, 12.1.1, 12.1.0, 12.0.0, 11.6.2, 11.6.1, 11.6.0, 11.5.5, 11.5.4, 11.5.3, 11.5.2, 11.5.1, 11.5.0, 11.4.1, 11.4.0, 11.2.1 o BIG-IP ASM: - 13.0.0, 12.1.2, 12.1.1, 12.1.0, 12.0.0, 11.6.2, 11.6.1, 11.6.0, 11.5.5, 11.5.4, 11.5.3, 11.5.2, 11.5.1, 11.5.0, 11.4.1, 11.4.0, 11.2.1 o BIG-IP Analytics: - 13.0.0, 12.1.2, 12.1.1, 12.1.0, 12.0.0, 11.6.2, 11.6.1, 11.6.0, 11.5.5, 11.5.4, 11.5.3, 11.5.2, 11.5.1, 11.5.0, 11.4.1, 11.4.0, 11.2.1 o BIG-IP DNS: - 13.0.0, 12.1.2, 12.1.1, 12.1.0, 12.0.0, 11.6.2, 11.6.1, 11.6.0, 11.5.5, 11.5.4, 11.5.3, 11.5.2, 11.5.1, 11.5.0, 11.4.1, 11.4.0, 11.2.1 o BIG-IP Edge Gateway: - 13.0.0, 12.1.2, 12.1.1, 12.1.0, 12.0.0, 11.6.2, 11.6.1, 11.6.0, 11.5.5, 11.5.4, 11.5.3, 11.5.2, 11.5.1, 11.5.0, 11.4.1, 11.4.0, 11.2.1 o BIG-IP GTM: - 13.0.0, 12.1.2, 12.1.1, 12.1.0, 12.0.0, 11.6.2, 11.6.1, 11.6.0, 11.5.5, 11.5.4, 11.5.3, 11.5.2, 11.5.1, 11.5.0, 11.4.1, 11.4.0, 11.2.1 o BIG-IP LTM: - 13.0.0, 12.1.2, 12.1.1, 12.1.0, 12.0.0, 11.6.2, 11.6.1, 11.6.0, 11.5.5, 11.5.4, 11.5.3, 11.5.2, 11.5.1, 11.5.0, 11.4.1, 11.4.0, 11.2.1 o BIG-IP Link Controller: - 13.0.0, 12.1.2, 12.1.1, 12.1.0, 12.0.0, 11.6.2, 11.6.1, 11.6.0, 11.5.5, 11.5.4, 11.5.3, 11.5.2, 11.5.1, 11.5.0, 11.4.1, 11.4.0, 11.2.1 o BIG-IP PEM: - 13.0.0, 12.1.2, 12.1.1, 12.1.0, 12.0.0, 11.6.2, 11.6.1, 11.6.0, 11.5.5, 11.5.4, 11.5.3, 11.5.2, 11.5.1, 11.5.0, 11.4.1, 11.4.0, 11.2.1 o BIG-IP PSM: - 13.0.0, 12.1.2, 12.1.1, 12.1.0, 12.0.0, 11.6.2, 11.6.1, 11.6.0, 11.5.5, 11.5.4, 11.5.3, 11.5.2, 11.5.1, 11.5.0, 11.4.1, 11.4.0, 11.2.1 o BIG-IP WebAccelerator: - 13.0.0, 12.1.2, 12.1.1, 12.1.0, 12.0.0, 11.6.2, 11.6.1, 11.6.0, 11.5.5, 11.5.4, 11.5.3, 11.5.2, 11.5.1, 11.5.0, 11.4.1, 11.4.0, 11.2.1 o BIG-IQ ADC: - 5.3.0, 5.2.0, 5.1.0, 5.0.0, 4.6.0, 4.5.0, 4.4.0, 4.3.0, 4.2.0, 4.1.0, 4.0.0 o BIG-IQ Centralized Management: - 5.3.0, 5.2.0, 5.1.0, 5.0.0, 4.6.0, 4.5.0, 4.4.0, 4.3.0, 4.2.0, 4.1.0, 4.0.0 o BIG-IQ Cloud: - 5.3.0, 5.2.0, 5.1.0, 5.0.0, 4.6.0, 4.5.0, 4.4.0, 4.3.0, 4.2.0, 4.1.0, 4.0.0 o BIG-IQ Cloud and Orchestration: - 1.0.0 o BIG-IQ Device: - 5.3.0, 5.2.0, 5.1.0, 5.0.0, 4.6.0, 4.5.0, 4.4.0, 4.3.0, 4.2.0, 4.1.0, 4.0.0 o BIG-IQ Security: - 5.3.0, 5.2.0, 5.1.0, 5.0.0, 4.6.0, 4.5.0, 4.4.0, 4.3.0, 4.2.0, 4.1.0, 4.0.0 o Enterprise Manager: - 3.1.1 o F5 WebSafe: - 1.0.0 o F5 iWorkflow: - 2.0.0, 2.1.0, 2.0.1, 2.2.0, 2.0.2, 2.3.0 o LineRate: - 2.6.0, 2.5.1, 2.6.1, 2.5.2, 2.5.0 o Traffix SDC: - 4.0.2, 5.1.0, 4.0.0, 4.4.0, 4.0.5 (C) Copyright 2017 by F5 Networks, Inc. | Policies | Trademarks rev:1.0.907.4131 - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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