Cisco Security Advisory
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AV:N/AC:L/Au:S/C:C/I:C/A:C/E:F/RL:OF/RC:C
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The Cisco Application Extension Platform contains a privilege escalation vulnerability in the tech support diagnostic shell that may allow an authenticated user to obtain administrative access to a vulnerable Cisco Application Extension Platform module. Cisco has released software updates that address this vulnerability. There is no workaround for this vulnerability.
This advisory is posted at https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20100609-axp.
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Vulnerable Products
The following products are affected by this vulnerability:
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Cisco Application Extension Platform version 1.1
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Cisco Application Extension Platform version 1.1.5 if upgraded from
version 1.1
Products Confirmed Not Vulnerable
The following products are not affected by this vulnerability:
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Cisco Application Extension Platform version 1.0
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Cisco Application Extension Platform version 1.1.5 if upgraded from
version 1.0 or a clean installation
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Cisco Application Extension Platform version 1.1.7
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Cisco Application Extension Platform version 1.5.x
No other Cisco products are currently known to be affected by this vulnerability.
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Cisco Application Extension Platform version 1.1
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The Cisco Application Extension Platform (AXP) allows third-party applications to be hosted on Cisco Integrated Services Routers (ISR). A privilege escalation vulnerability exists in command-line interface of the the tech support diagnostic shell that may allow an authenticated user to obtain complete administrative access to vulnerable Cisco AXP module. The tech support shell is accessed using the techsupport support shell command.
Authenticated Cisco AXP users can use an application programming interface (API) to execute commands on the Cisco ISR that is hosting the AXP module. It may be possible for an AXP user to obtain sensitive configuration information that allows the user to gain access to the ISR device. Cisco AXP version 1.5 requires that a user be configured in the ISR configuration before the AXP user can execute commands using the API.
This vulnerability is documented in Cisco Bug ID CSCtb65413 ( registered customers only) and has been assigned the Common Vulnerabilities and Exposures (CVE) ID CVE-2010-1572.
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There is no workaround for this vulnerability.
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When considering software upgrades, also consult http://www.cisco.com/go/psirt and any subsequent advisories to determine exposure and a complete upgrade solution.
In all cases, customers should exercise caution to be certain the devices to be upgraded contain sufficient memory and that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, contact the Cisco Technical Assistance Center (TAC) or your contracted maintenance provider for assistance.
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The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability described in this advisory. This vulnerability was reported to Cisco by n.runs AG.
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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.
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