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AUSCERT External Security Bulletin Redistribution
ESB-2017.2061
Cisco Security Appliances SNMP Polling Information Disclosure Vulnerability
17 August 2017
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AusCERT Security Bulletin Summary
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Product: Cisco Web Security Appliance
Cisco Email Security Appliance
Cisco Content Security Management Appliance
Publisher: Cisco Systems
Operating System: Network Appliance
Impact/Access: Access Confidential Data -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2017-6783
Original Bulletin:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170816-csa
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Cisco Security Advisory
Cisco Security Appliances SNMP Polling Information Disclosure Vulnerability
Medium
Advisory ID: cisco-sa-20170816-csa
First Published: 2017 August 16 16:00 GMT
Version 1.0: Final
Workarounds: No workarounds available
Cisco Bug IDs:
CSCve26106
CSCve26202
CSCve26224
CVSS Score: Base 4.3, Temporal 4.3
CVE-2017-6783
CWE-200
Summary
A vulnerability in SNMP polling for the Cisco Web Security Appliance
(WSA), Email Security Appliance (ESA), and Content Security Management
Appliance (SMA) could allow an authenticated, remote attacker to discover
confidential information about the appliances that should be available
only to an administrative user.
The vulnerability occurs because the appliances do not protect confidential
information at rest in response to Simple Network Management Protocol
(SNMP) poll requests. An attacker could exploit this vulnerability by
doing a crafted SNMP poll request to the targeted security appliance. An
exploit could allow the attacker to discover confidential information
that should be restricted, and the attacker could use this information to
conduct additional reconnaissance. The attacker must know the configured
SNMP community string to exploit this vulnerability.
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-20170816-csa
Affected Products
Vulnerable Products
This vulnerability affects Cisco Web Security Appliance (WSA), Email
Security Appliance (ESA), and Content Security Management Appliance
(SMA). 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.
Indicators of Compromise
There are no indications of compromise for 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-20170816-csa
Revision History
Version Description Section Status Date
1.0 Initial public release. -- Final 2017-August-16
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.
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