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AUSCERT External Security Bulletin Redistribution
ESB-2016.1563
Cisco 8800 Series IP Phone Vulnerabilities
21 June 2016
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AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco 8800 Series IP Phone
Publisher: Cisco Systems
Operating System: Cisco
Impact/Access: Modify Arbitrary Files -- Existing Account
Delete Arbitrary Files -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2016-1435 CVE-2016-1434
Original Bulletin:
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160620-ip-phone
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160620-ipp
Comment: This bulletin contains two (2) Cisco Systems security advisories.
- --------------------------BEGIN INCLUDED TEXT--------------------
Cisco Security Advisory
Cisco 8800 Series IP Phone Directory Traversal Vulnerability
Medium
Advisory ID:
cisco-sa-20160620-ip-phone
Published:
2016 June 20 14:30 GMT
Version 1.0:
Final
CVSS Score:
Base - 4.0
Workarounds:
No workarounds available
Cisco Bug IDs:
CSCuz03010
CVE-2016-1434
CWE-22
Summary
A vulnerability in the license upload interface of Cisco 8800 Series IP Phones
could allow an authenticated, remote attacker to delete arbitrary files from
the filesystem.
The vulnerability is due to insufficient input validation. An attacker could
exploit this vulnerability by uploading invalid files to an affected device
via the certificate upload interface for the device. A successful exploit
could allow the attacker to delete files in arbitrary locations on the
filesystem.
Cisco has released software updates that address this vulnerability. There are
no workarounds that address this vulnerability.
This advisory is available at the following link:
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160620-ip-phone
Affected Products
Vulnerable Products
This vulnerability affects Cisco 8800 Series IP Phones running software
Release 11.0(1).
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
Cisco provides information about fixed software in Cisco bugs, which are
accessible through the Cisco Bug Search Tool.
When considering software upgrades, customers are advised to consult the Cisco
Security Advisories and Responses archive at http://www.cisco.com/go/psirt and
review subsequent advisories to determine exposure and a complete upgrade
solution.
In all cases, customers should ensure that the devices to upgrade 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.
URL
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160620-ip-phone
Revision History
Version Description Section Status Date
1.0 Initial public release. - Final 2016-June-20
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 Advisory
Cisco 8800 Series IP Phone Filesystem Permission Enforcement Unauthorized
Access Vulnerability
Medium
Advisory ID:
cisco-sa-20160620-ipp
Published:
2016 June 20 14:30 GMT
Version 1.0:
Final
CVSS Score:
Base - 6.0
Workarounds:
No workarounds available
Cisco Bug IDs:
CSCuz03014
CVE-2016-1435
CWE-264
Summary
A vulnerability in the mounted filesystem of Cisco 8800 Series IP Phones could
allow an authenticated, remote attacker to access any file, including the
right to change the file mode, on a targeted device.
The vulnerability is due to insufficient enforcement of filesystem
permissions. An attacker could exploit this vulnerability by leveraging
another exploit that allows the attacker to gain access to an unprivileged
shell. A successful exploit could allow the attacker to modify or replace
existing system files with malicious files.
Cisco has released software updates that address this vulnerability. There are
no workarounds that address this vulnerability.
This advisory is available at the following link:
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160620-ipp
Affected Products
Vulnerable Products
This vulnerability affects Cisco 8800 Series IP Phones running software
Release 11.0(1).
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
Cisco provides information about fixed software in Cisco bugs, which are
accessible through the Cisco Bug Search Tool.
When considering software upgrades, customers are advised to consult the Cisco
Security Advisories and Responses archive at http://www.cisco.com/go/psirt and
review subsequent advisories to determine exposure and a complete upgrade
solution.
In all cases, customers should ensure that the devices to upgrade 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.
URL
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20160620-ipp
Revision History
Version Description Section Status Date
1.0 Initial public release. - Final 2016-June-20
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.
- --------------------------END INCLUDED TEXT--------------------
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