Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2017.1840
Cisco Access Control System Stored Cross-Site Scripting Vulnerability
27 July 2017
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco Secure Access Control System
Publisher: Cisco Systems
Operating System: Cisco
VMware ESX Server
Impact/Access: Cross-site Scripting -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2017-6769
Original Bulletin:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170726-acs
- --------------------------BEGIN INCLUDED TEXT--------------------
Cisco Security Advisory
Cisco Access Control System Stored Cross-Site Scripting Vulnerability
Medium
Advisory ID:
cisco-sa-20170726-acs
First Published:
2017 July 26 16:00 GMT
Version 1.0:
Final
Workarounds:
No workarounds available
Cisco Bug IDs:
CSCve70587
CVE-2017-6769
CWE-79
CVSS Score:
Base 5.4, Temporal 5.4
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N/E:X/RL:X/RC:X
CVE-2017-6769
CWE-79
Summary
A vulnerability in the web-based management interface of the Cisco Secure
Access Control System (ACS) could allow an authenticated, remote attacker
to conduct a stored cross-site scripting (XSS) attack against a user of the
web interface of the affected system.
The vulnerability is due to insufficient input validation of user-supplied
values and a lack of encoding of user-supplied data. An attacker could
exploit this vulnerability by convincing a user to click a malicious link.
Additional information about XSS attacks and potential mitigations can be
found at the following links:
https://tools.cisco.com/security/center/content/CiscoAppliedMitigationBulletin/cisco-amb-20060922-understanding-xss
https://www.owasp.org/index.php/Cross-site_Scripting_(XSS)
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-20170726-acs
Affected Products
Vulnerable Products
This vulnerability affects Cisco Secure Access Control System (ACS). 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
Cisco would like to thank security researcher Mikhail Klyuchnikov from
Positive Technologies for finding and reporting this vulnerability.
Cisco Security Vulnerability Policy
To learn about Cisco security vulnerability disclosure policies and
publications, see the Security Vulnerability Policy. This document also
contains instructions for obtaining fixed software and receiving security
vulnerability information from Cisco.
Subscribe to Cisco Security Notifications
Subscribe
URL
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170726-acs
Revision History
Version Description Section Status Date
1.0 Initial public release. Final 2017-July-26
Legal Disclaimer
THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND
OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR
FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT
OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES
THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.
A standalone copy or paraphrase of the text of this document that omits the
distribution URL is an uncontrolled copy and may lack important information
or contain factual errors. The information in this document is intended for
end users of Cisco products.
Cisco Security Vulnerability Policy
To learn about Cisco security vulnerability disclosure policies and
publications, see the Security Vulnerability Policy. This document also
contains instructions for obtaining fixed software and receiving security
vulnerability information from Cisco.
Subscribe to Cisco Security Notifications
Subscribe
- --------------------------END INCLUDED TEXT--------------------
You have received this e-mail bulletin as a result of your organisation's
registration with AusCERT. The mailing list you are subscribed to is
maintained within your organisation, so if you do not wish to continue
receiving these bulletins you should contact your local IT manager. If
you do not know who that is, please send an email to auscert@auscert.org.au
and we will forward your request to the appropriate person.
NOTE: Third Party Rights
This security bulletin is provided as a service to AusCERT's members. As
AusCERT did not write the document quoted above, AusCERT has had no control
over its content. The decision to follow or act on information or advice
contained in this security bulletin is the responsibility of each user or
organisation, and should be considered in accordance with your organisation's
site policies and procedures. AusCERT takes no responsibility for consequences
which may arise from following or acting on information or advice contained in
this security bulletin.
NOTE: This is only the original release of the security bulletin. It may
not be updated when updates to the original are made. If downloading at
a later date, it is recommended that the bulletin is retrieved directly
from the author's website to ensure that the information is still current.
Contact information for the authors of the original document is included
in the Security Bulletin above. If you have any questions or need further
information, please contact them directly.
Previous advisories and external security bulletins can be retrieved from:
http://www.auscert.org.au/render.html?cid=1980
===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967
iQIVAwUBWXlJ7Ix+lLeg9Ub1AQgXmQ//Qy7tllwWSpOgnf8IxMv0lswDs6aW6wDC
CCoHo1nJqOvQYjFqTc7bvj8fThdTdbky1zByrWkgmuvzWp5HFlulr/rYtjm1pCI5
YhgOquz9xH2e09JwWDPjWwXvDqIwu4cX8fwbU9fMy1Sld393iMsXCNfxE2ys/+ot
dnL+8vYDiEzSKglaJPmgnx5jes52avSawyllWe4SGdUMvuJm4eGQxfh8s8hIkcDo
QcjK2kq7daKox4FxxjC3lQ/AgLsgksn5kcciH7pH35o1ts5mv+lnnp83EXIf+jn0
qnaZYoVXzU8JrWmGZxbjtdAkaZm6Jd7HDovHvGIGacK+DS3+dYXey7u62OMoF61T
Ps5DDcqCuIE0hhALOQ6fHyeJpVLrO/gxgrKQGz+rBLALttbq7PuCxWmly5aSWAnF
EwXJUzUU41cMnNdJXBFFV0q2Je7xatLyOLxydYECiCuPuLzwGGcMdTH4hv5jD+ow
zJ8gYWywwBiJ+KMVWlfawhcN4RdUEa7Vrad1Zt0WVqB+KAGMp665fxWFTXZ639Fy
ZZKWFdznYEyOTYE5DNB+70mkGerYqXhutzgdBHk/sxN6JkUPeHvWHKI2OlW7MIJx
5DNJd6fiQXsijH0nExYk/woyGVU1syHFKO3NBLEiHypx0tGo2AponVr/Xii+JBh6
To2Us9nNx5E=
=8hQb
-----END PGP SIGNATURE-----