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AUSCERT External Security Bulletin Redistribution
ESB-2017.2497
Cisco Wide Area Application Services Denial-of-Service Vulnerability
5 October 2017
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AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco Wide Area Application Services (WAAS)
Publisher: Cisco Systems
Operating System: Cisco
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2017-12267 CVE-2017-12256
Original Bulletin:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171004-waas
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171004-waas1
Comment: This bulletin contains two (2) security advisories.
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Cisco Wide Area Application Services Denial-of-Service Vulnerability
Medium
Advisory ID:
cisco-sa-20171004-waas
First Published:
2017 October 4 16:00 GMT
Version 1.0:
Final
Workarounds:
No workarounds available
Cisco Bug IDs:
CSCve82472
CVSS Score:
Base 6.5
CVE-2017-12256
CWE-399
Summary
A vulnerability in the Akamai Connect feature of Cisco Wide Area Application
Services (WAAS) Appliances could allow an unauthenticated, remote attacker to
cause a denial-of-service (DoS) condition on an affected device.
The vulnerability is due to certain file-handling inefficiencies of the
affected system. An attacker could exploit this vulnerability by directing
client systems to access a corrupted file that the client systems cannot
decompress correctly. A successful exploit could allow the attacker to cause
the affected device to crash or hang unexpectedly and result in a DoS
condition that may require manual intervention to regain normal operating
conditions.
There are no workarounds that address this vulnerability.
This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171004-waas
Affected Products
Vulnerable Products
This vulnerability affects Cisco Wide Area Application Services (WAAS)
Appliances. For information about affected software releases, consult the
Cisco bug ID(s) at the top of this advisory.
Products Confirmed Not Vulnerable
No other Cisco products are currently known to be affected by this
vulnerability.
Workarounds
There are no workarounds that address this vulnerability.
Fixed Software
For information about fixed software releases, consult the Cisco bug ID(s) at
the top of this advisory.
When considering software upgrades, customers are advised to regularly consult
the advisories for Cisco products, which are available from the Cisco Security
Advisories and Alerts page, to determine exposure and a complete upgrade
solution.
In all cases, customers should ensure that the devices to be upgraded contain
sufficient memory and confirm that current hardware and software
configurations will continue to be supported properly by the new release. If
the information is not clear, customers are advised to contact the Cisco
Technical Assistance Center (TAC) or their contracted maintenance providers.
Exploitation and Public Announcements
The Cisco Product Security Incident Response Team (PSIRT) is not aware of any
public announcements or malicious use of the vulnerability that is described
in this advisory.
Source
This vulnerability was found internally.
URL
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171004-waas
Revision History
Version Description Section Status Date
1.0 Initial public release. - Final 2017-October-04
================================================================================
Cisco Wide Area Application Services ICA Accelerator Denial of Service
Vulnerability
Medium
Advisory ID:
cisco-sa-20171004-waas1
First Published:
2017 October 4 16:00 GMT
Version 1.0:
Final
Workarounds:
No workarounds available
Cisco Bug IDs:
CSCve74457
CVSS Score:
Base 5.8
CVE-2017-12267
CWE-119
Summary
A vulnerability in the Independent Computing Architecture (ICA) accelerator
feature for the Cisco Wide Area Application Services (WAAS) could allow an
unauthenticated, remote attacker to cause an ICA application
optimization-related process to restart, resulting in a partial denial of
service (DoS) condition.
The vulnerability is due to improperly aborting a connection when an
unexpected protocol packet is received. An attacker could exploit this
vulnerability by sending a crafted ICA traffic through the targeted device. A
successful exploit could allow the attacker to cause a DoS condition that is
due to a process unexpectedly restarting. The Cisco WAAS could drop ICA
traffic while the process is restarting.
There are no workarounds that address this vulnerability
This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171004-waas1
Affected Products
Vulnerable Products
This vulnerability affects Cisco Wide Area Application Services (WAAS) and
Cisco Virtual Wide Area Application Services (vWAAS) are affected. For
information about affected software releases, consult the Cisco bug ID(s) at
the top of this advisory.
Products Confirmed Not Vulnerable
No other Cisco products are currently known to be affected by this
vulnerability.
Workarounds
There are no workarounds that address this vulnerability.
Fixed Software
For information about fixed software releases, consult the Cisco bug ID(s) at
the top of this advisory.
When considering software upgrades, customers are advised to regularly consult
the advisories for Cisco products, which are available from the Cisco Security
Advisories and Alerts page, to determine exposure and a complete upgrade
solution.
In all cases, customers should ensure that the devices to be upgraded contain
sufficient memory and confirm that current hardware and software
configurations will continue to be supported properly by the new release. If
the information is not clear, customers are advised to contact the Cisco
Technical Assistance Center (TAC) or their contracted maintenance providers.
Exploitation and Public Announcements
The Cisco Product Security Incident Response Team (PSIRT) is not aware of any
public announcements or malicious use of the vulnerability that is described
in this advisory.
Source
This vulnerability was found during internal security testing.
URL
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171004-waas1
Revision History
Version Description Section Status Date
1.0 Initial public release. - Final 2017-October-04
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