Cisco Security Advisory
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CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:X/RL:X/RC:X
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A vulnerability in the restricted shell of Cisco Evolved Programmable Network (EPN) Manager, Cisco Identity Services Engine (ISE), and Cisco Prime Infrastructure could allow an authenticated, local attacker to identify directories and write arbitrary files to the file system.
This vulnerability is due to improper validation of parameters that are sent to a CLI command within the restricted shell. An attacker could exploit this vulnerability by logging in to the device and issuing certain CLI commands. A successful exploit could allow the attacker to identify file directories on the affected device and write arbitrary files to the file system on the affected device. To exploit this vulnerability, the attacker must be an authenticated shell user.
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:
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ade-xcvAQEOZ
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Vulnerable Products
At the time of publication, this vulnerability affected the following Cisco products and firmware releases:
Cisco Product Vulnerable Releases EPN Manager Earlier than Release 5.0.1 ISE Earlier than Release 2.6 Patch10
Earlier than Release 2.7 Patch4
Earlier than Release 3.0 Patch2
Earlier than Release 3.1Prime Infrastructure Releases 3.5 and later
Earlier than Release 3.9.0For information about which Cisco software releases are vulnerable, see the Fixed Software section of this advisory. See the Details section in the bug ID(s) at the top of this advisory for the most complete and current information.
Products Confirmed Not Vulnerable
Only products listed in the Vulnerable Products section of this advisory are known to be affected by this vulnerability.
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There are no workarounds that address this vulnerability.
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When considering software upgrades, customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories 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.
Fixed Releases
At the time of publication, the release information in the following table(s) was accurate. See the Details section in the bug ID(s) at the top of this advisory for the most complete and current information.
Cisco Product Fixed Releases EPN Manager 5.0.1 and later ISE 2.6 Patch10 and later
2.7 Patch4 and later
3.0 Patch2 and later
3.1 and laterPrime Infrastructure 3.9.0 and later
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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.
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Cisco would like to thank employees of Conscia for reporting this vulnerability.
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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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Show LessVersion Description Section Status Date 1.2 Removed Prime Infrastructure 3.8.1 Update 2 as a fix because it hasn't been published. Vulnerable Products, Fixed Releases Final 2021-JUN-24 1.1 Added ISE 2.6 Patch10 and later to vulnerable products and fixed releases. Vulnerable Products, Fixed Releases Final 2021-JUN-21 1.0 Initial public release. — Final 2021-MAY-19
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