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AUSCERT External Security Bulletin Redistribution
ESB-2017.1143
K23440942: Insufficient validation of ICMP error messages
CVE-2004-0790 (11.x- 13.x)
8 May 2017
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AusCERT Security Bulletin Summary
---------------------------------
Product: F5 Products
Publisher: F5 Networks
Operating System: Network Appliance
Impact/Access: Provide Misleading Information -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2004-0790
Reference: AA-2006.0080
ESB-2006.0004
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K23440942: Insufficient validation of ICMP error messages CVE-2004-0790 (11.x
- - 13.x)
Security Advisory
Original Publication Date: May 05, 2017
Updated Date: May 05, 2017
Applies to (see versions):
Security Advisory Description
The vulnerability described in this article was initially fixed in earlier
versions, but a regression was reintroduced in BIG-IP 12.x through 13.x. For
information about earlier versions, refer to K4583: Insufficient validation of
ICMP error messages - VU#222750 / CVE-2004-0790 (9.x - 10.x).
Multiple TCP/IP and ICMP implementations allow remote attackers to cause a
denial of service (reset TCP connections) via spoofed ICMP error messages, aka
the "blind connection-reset attack." NOTE: CVE-2004-0790, CVE-2004-0791, and
CVE-2004-1060 have been SPLIT based on different attacks; CVE-2005-0065,
CVE-2005-0066, CVE-2005-0067, and CVE-2005-0068 are related identifiers that
are SPLIT based on the underlying vulnerability. While CVE normally SPLITs
based on vulnerability, the attack-based identifiers exist due to the variety
and number of affected implementations and solutions that address the attacks
instead of the underlying vulnerabilities. (CVE-2004-0790)
Impact
A remote attacker can interfere with the Path MTU Discovery process and cause
a performance degradation or reset of FastL4 accelerated TCP connections by
spoofing a specifically crafted ICMP message.
This vulnerability only applies to FastL4 virtual servers on BIG-IP platforms
with the embedded Packet Velocity Acceleration (ePVA) chip. The ePVA chip is a
hardware acceleration Field Programmable Gate Array (FPGA) that delivers
high-performance Layer 4 (L4) IPv4 throughput. The ePVA chips are included on
the following BIG-IP platforms:
B2100 Blade in the VIPRION C2400 or C2200 Chassis
B2150 Blade in the VIPRION C2400 or C2200 Chassis
B2250 Blade in the VIPRION C2400 or C2200 Chassis
B4300 Blade in the VIPRION C4480 or C4800 Chassis
B4340 Blade in the VIPRION C4480 or C4800 Chassis
BIG-IP 12000 series
BIG-IP 10000 series
BIG-IP 7000 series
BIG-IP 5000 series
BIG-IP i5000 series
BIG-IP i7000 series
BIG-IP i10000 series
Security Advisory Status
F5 Product Development has assigned ID 635933 (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 vulnerable Versions known to be not vulnerable Severity Vulnerable component or feature
BIG-IP LTM 13.0.0 13.0.0 HF1[1] Low Accellerated FastL4 virtual server connection flows on ePVA equipped platforms
12.0.0 - 12.1.2 12.1.2 HF1[1]
11.4.0 - 11.6.1[1]
BIG-IP AAM 13.0.0 13.0.0 HF1[1] Low Accellerated FastL4 virtual server connection flows on ePVA equipped platforms
12.0.0 - 12.1.2 12.1.2 HF1[1]
11.4.0 - 11.6.1[1]
BIG-IP AFM 13.0.0 13.0.0 HF1[1] Low Accellerated FastL4 virtual server connection flows on ePVA equipped platforms
12.0.0 - 12.1.2 12.1.2 HF1[1]
11.4.0 - 11.6.1[1]
BIG-IP Analytics 13.0.0 13.0.0 HF1[1] Low Accellerated FastL4 virtual server connection flows on ePVA equipped platforms
12.0.0 - 12.1.2 12.1.2 HF1[1]
11.4.0 - 11.6.1[1]
BIG-IP APM 13.0.0 13.0.0 HF1[1] Low Accellerated FastL4 virtual server connection flows on ePVA equipped platforms
12.0.0 - 12.1.2 12.1.2 HF1[1]
11.4.0 - 11.6.1[1]
BIG-IP ASM 13.0.0 13.0.0 HF1[1] Low Accellerated FastL4 virtual server connection flows on ePVA equipped platforms
12.0.0 - 12.1.2 12.1.2 HF1[1]
11.4.0 - 11.6.1[1]
BIG-IP DNS None 13.0.0 Not vulnerable None
12.0.0 - 12.1.2
BIG-IP Edge Gateway None 11.2.1 Not vulnerable None
BIG-IP GTM None 11.4.0 - 11.6.1 Not vulnerable None
11.2.1
BIG-IP Link Controller 13.0.0 13.0.0 HF1[1] Low Accellerated FastL4 virtual server connection flows on ePVA equipped platforms
12.0.0 - 12.1.2 12.1.2 HF1[1]
11.4.0 - 11.6.1[1]
BIG-IP PEM 13.0.0 13.0.0 HF1[1] Low Accellerated FastL4 virtual server connection flows on ePVA equipped platforms
12.0.0 - 12.1.2 12.1.2 HF1[1]
11.4.0 - 11.6.1[1]
BIG-IP PSM None 11.4.0 - 11.4.1 Not vulnerable None
BIG-IP WebAccelerator None 11.2.1 Not vulnerable None
BIG-IP WebSafe 13.0.0 13.0.0 HF1[1] Low Accellerated FastL4 virtual server connection flows on ePVA equipped platforms
12.0.0 - 12.1.2 12.1.2 HF1[1]
11.6.0 - 11.6.1[1]
ARX None 6.2.0 - 6.4.0 Not vulnerable None
Enterprise Manager None 3.1.1 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 Management None 5.0.0 - 5.1.0 Not vulnerable None
4.6.0
BIG-IQ Cloud and Orchestration None 1.0.0 Not vulnerable None
F5 iWorkflow None 2.0.0 - 2.1.0 Not vulnerable None
LineRate None 2.5.0 - 2.6.2 Not vulnerable None
Traffix SDC None 5.0.0 - 5.1.0 Not vulnerable None
4.0.0 - 4.4.0
[1] The fix in BIG-IP 13.0.0 HF1, 12.1.2 HF1, 11.6.1 HF2, and 11.5.4 HF3
introduces the Pva.ValidateTcpSeqInICMP database variable set to a default
value of true. With this value set to true, the BIG-IP system is Not
vulnerable to CVE-2004-0790. However, some specific FastL4 accelerated traffic
conditions may require the Pva.Validate.TcpSeqInICMP database variable to be
configured as False. With this value set to false, FastL4 virtual server
connections are susceptible to CVE-2004-0790.
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.
Mitigation
None
Supplemental Information
K12837: Overview of the ePVA feature
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 - 13.x)
K9502: BIG-IP hotfix matrix
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