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AUSCERT External Security Bulletin Redistribution
ESB-2021.2478
Cisco Intersight Virtual Appliance Vulnerabilities
22 July 2021
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AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco Intersight Virtual Appliance
Publisher: Cisco Systems
Operating System: Cisco
Impact/Access: Root Compromise -- Existing Account
Execute Arbitrary Code/Commands -- Existing Account
Modify Arbitrary Files -- Existing Account
Access Confidential Data -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2021-1618 CVE-2021-1617
Original Bulletin:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucsi2-dtcinj-yH5U4RSx
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Cisco Intersight Virtual Appliance Vulnerabilities
Priority: Medium
Advisory ID: cisco-sa-ucsi2-dtcinj-yH5U4RSx
First Published: 2021 July 21 16:00 GMT
Version 1.0: Final
Workarounds: No workarounds available
Cisco Bug IDs: CSCvy29621 CSCvy29622
CVE Names: CVE-2021-1617 CVE-2021-1618
CWEs: CWE-36 CWE-78
Summary
o Multiple vulnerabilities in the web-based management interface of Cisco
Intersight Virtual Appliance could allow an authenticated, remote attacker
to conduct a path traversal or command injection attack on an affected
system.
These vulnerabilities are due to insufficient input validation. An attacker
could exploit these vulnerabilities by using the web-based management
interface to do one or both of the following:
Execute a command using crafted input
Upload a file that has been altered using path traversal techniques
A successful exploit could allow the attacker to read and write arbitrary
files or execute arbitrary commands as root on an affected system.
For more information about these vulnerabilities, see the Details section
of this advisory.
Cisco has released software updates that address these vulnerabilities.
There are no workarounds that address these vulnerabilities.
This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucsi2-dtcinj-yH5U4RSx
Affected Products
o Vulnerable Products
At the time of publication, these vulnerabilities affected Cisco Intersight
Virtual Appliance releases earlier than Release 1.0.9-292.
Note: These vulnerabilities do not affect customers who use Cisco
Intersight Services for Cloud.
To determine the release of Cisco Intersight Virtual Appliance, click the
gear icon in the top right corner of the web UI, and then choose Settings >
Software . The web UI will display the release number.
Details
o The vulnerabilities are not dependent on one another. Exploitation of one
of the vulnerabilities is not required to exploit the other vulnerability.
In addition, a software release that is affected by one of the
vulnerabilities may not be affected by the other vulnerability.
Details about the vulnerabilities are as follows:
CVE-2021-1617: Cisco Intersight Virtual Appliance Path Traversal
Vulnerability
A vulnerability in the web-based management interface of Cisco Intersight
Virtual Appliance could allow an authenticated, remote attacker to conduct
a path traversal attack on an affected system.
This vulnerability is due to insufficient input validation. An attacker
could exploit this vulnerability by using the web-based management
interface to do one or both of the following:
Execute a command using crafted input
Upload a file that has been altered using path traversal techniques
A successful exploit could allow the attacker to read and write arbitrary
files on an affected system.
Cisco has released software updates that address this vulnerability. There
are no workarounds that address this vulnerability.
Bug ID(s): CSCvy29621
CVE ID: CVE-2021-1617
Security Impact Rating (SIR): Medium
CVSS Base Score: 6.5
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
CVE-2021-1618: Cisco Intersight Virtual Appliance Command Injection
Vulnerability
A vulnerability in the web-based management interface of Cisco Intersight
Virtual Appliance could allow an authenticated, remote attacker to conduct
a command injection attack on an affected system.
This vulnerability is due to insufficient input validation. An attacker
could exploit this vulnerability by using the web-based management
interface to execute a command using crafted input. A successful exploit
could allow the attacker to execute arbitrary commands as root on an
affected system.
Cisco has released software updates that address this vulnerability. There
are no workarounds that address this vulnerability.
Bug ID(s): CSCvy29622
CVE ID: CVE-2021-1618
Security Impact Rating (SIR): Medium
CVSS Base Score: 6.5
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Workarounds
o There are no workarounds that address these vulnerabilities.
Fixed Software
o 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, Cisco Intersight Virtual Appliance releases
1.0.9-292 and later contained the fix for these vulnerabilities.
See the Details section in the bug ID(s) at the top of this advisory for
the most complete and current information.
Exploitation and Public Announcements
o The Cisco Product Security Incident Response Team (PSIRT) is not aware of
any public announcements or malicious use of the vulnerabilities that are
described in this advisory.
Source
o These vulnerabilities were found during internal security testing by the
Cisco Advanced Security Initiatives Group (ASIG).
Cisco Security Vulnerability Policy
o 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.
URL
o https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ucsi2-dtcinj-yH5U4RSx
Revision History
o +----------+---------------------------+----------+--------+--------------+
| Version | Description | Section | Status | Date |
+----------+---------------------------+----------+--------+--------------+
| 1.0 | Initial public release. | - | Final | 2021-JUL-21 |
+----------+---------------------------+----------+--------+--------------+
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