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AUSCERT External Security Bulletin Redistribution
ESB-2023.2502
Cisco SPA112 2-Port Phone Adapters Remote Command Execution Vulnerability
4 May 2023
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AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco SPA112 2-Port Phone Adapters
Publisher: Cisco Systems
Operating System: Network Appliance
Resolution: Patch/Upgrade
CVE Names: CVE-2023-20126
Original Bulletin:
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-spa-unauth-upgrade-UqhyTWW
Comment: CVSS (Max): 9.8 CVE-2023-20126 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
CVSS Source: Cisco Systems
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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Cisco SPA112 2-Port Phone Adapters Remote Command Execution Vulnerability
Critical
Advisory ID: cisco-sa-spa-unauth-upgrade-UqhyTWW
First Published: 2023 May 3 16:00 GMT
Version 1.0: Final
Workarounds: No workarounds available
Cisco Bug IDs: CSCwe50762
CVSS Score: Base 9.8
CVE Names: CVE-2023-20126
Summary
o A vulnerability in the web-based management interface of Cisco SPA112
2-Port Phone Adapters could allow an unauthenticated, remote attacker to
execute arbitrary code on an affected device.
This vulnerability is due to a missing authentication process within the
firmware upgrade function. An attacker could exploit this vulnerability by
upgrading an affected device to a crafted version of firmware. A successful
exploit could allow the attacker to execute arbitrary code on the affected
device with full privileges.
Cisco has not released firmware updates to 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-spa-unauth-upgrade-UqhyTWW
Affected Products
o Vulnerable Products
This vulnerability affects all firmware releases for Cisco SPA112 2-Port
Phone Adapters.
Products Confirmed Not Vulnerable
Only products listed in the Vulnerable Products section of this advisory
are known to be affected by this vulnerability.
Workarounds
o There are no workarounds that address this vulnerability.
Fixed Software
o Cisco has not released and will not release firmware updates to address the
vulnerability that is described in this advisory. Cisco SPA112 2-Port Phone
Adapters have entered the end-of-life process. Customers are advised to
refer to the end-of-life notice for the product:
End-of-Sale and End-of-Life Announcement for the Cisco SPA112 2-Port Phone
Adapter and SPA122 ATA with Router
Customers are encouraged to migrate to a Cisco ATA 190 Series Analog
Telephone Adapter.
When considering a device migration, 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 new device will be
sufficient for their network needs and that current hardware and software
configurations will continue to be supported properly by the new product.
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
o 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
o Cisco would like to thank CataLpa of Dbappsecurity Co., Ltd. Hatlab, for
reporting this vulnerability.
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://sec.cloudapps.cisco.com/security/center/content/
CiscoSecurityAdvisory/cisco-sa-spa-unauth-upgrade-UqhyTWW
Revision History
o
+----------+-----------------------------+----------+---------+---------------+
| Version | Description | Section | Status | Date |
+----------+-----------------------------+----------+---------+---------------+
| 1.0 | Initial public release. | - | Final | 2023-MAY-03 |
+----------+-----------------------------+----------+---------+---------------+
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