Date: 05 March 2015
References: ESB-2014.2325 ESB-2014.2375.2 ESB-2014.2404 ESB-2014.2407 ESB-2014.2440 ESB-2014.2441 ESB-2014.2447 ESB-2014.2452 ESB-2014.2453 ESB-2014.2460
ESB-2014.2466 ESB-2014.2468 ESB-2015.0377
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AUSCERT External Security Bulletin Redistribution
SSL-TLS Implementations Cipher Block Chaining Padding
Information Disclosure Vulnerability
5 March 2015
AusCERT Security Bulletin Summary
Product: Cisco Adaptive Security Appliance (ASA)
Cisco ACE Application Control Engine Module
Cisco ASR 5000 Series Software
Publisher: Cisco Systems
Operating System: Cisco
Impact/Access: Access Privileged Data -- Remote/Unauthenticated
CVE Names: CVE-2014-8730
Revision History: March 5 2015: Added Cisco IOS and ASR 5000 Series Software
to affected products
December 17 2014: Initial Release
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Cisco Security Notice
SSL-TLS Implementations Cipher Block Chaining Padding Information Disclosure
CVE ID: CVE-2014-8730
Release Date: 2014 December 15 21:14 UTC (GMT)
Last Updated: 2015 March 3 21:22 UTC (GMT)
A vulnerability in certain implementations of the TLSv1 protocol could allow
an unauthenticated, remote attacker to access sensitive information.
The vulnerability is due to improper block cipher padding implemented in TLSv1
when using Cipher Block Chaining (CBC) mode. An attacker could exploit the
vulnerability to perform an "oracle padding" side channel attack on the
cryptographic message. A successful exploit could allow the attacker to access
Consult the bug release note for additional information about affected
products and configurations.
Product More Information CVSS
Cisco Adaptive Security Appliance (ASA) Software CSCus08101 4.3/4.1
Cisco ACE Application Control Engine Module CSCus09311 4.3/4.1
IOS CSCus17354, CSCus94884 4.3/4.1
Cisco ASR 5000 Series Software CSCus17986 4.3/4.1
Products Confirmed Not Vulnerable
Some vulnerability scanners may identify the following Cisco products as
affected by this vulnerability; however, Cisco has confirmed that these
products are not affected. This may not be a comprehensive list of all
products that are not affected. Cisco products are investigated over time and
will be added to this document as investigation of the vulnerability
Cisco ACE 4700 Series Application Control Engine Appliances
What Is a Cisco Security Notice?
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Security Notices to inform customers of low- to mid-level severity security
issues involving Cisco products.
Customers who wish to upgrade to a software version that includes fixes for
these issues should contact their normal support channels. Free software
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For additional information about Cisco PSIRT publications, see the Cisco
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