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Home / Cisco Security / Security Advisories





CISCO SECURITY ADVISORY


CISCO SMALL BUSINESS SPA300 SERIES AND SPA500 SERIES IP PHONES WEB UI
VULNERABILITIES

Critical
Advisory ID:
cisco-sa-spa-http-vulns-RJZmX2Xz
First Published:
2024 August 7 16:00 GMT
Version 1.0:
Final
Workarounds:
No workarounds available
Cisco Bug IDs:
CSCwk31988

CVE-2024-20450
CVE-2024-20451
CVE-2024-20452

More...


CVE-2024-20450,CVE-2024-20451,CVE-2024-20452,CVE-2024-20453,CVE-2024-20454
CWE-120

CVSS Score:
Base 9.8Click Icon to Copy Verbose Score
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:X/RL:X/RC:X
CVE-2024-20450
CVE-2024-20451
CVE-2024-20452

More...


CVE-2024-20450,CVE-2024-20451,CVE-2024-20452,CVE-2024-20453,CVE-2024-20454
CWE-120


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SUMMARY

 * Multiple vulnerabilities in the web-based management interface of Cisco Small
   Business SPA300 Series IP Phones and Cisco Small Business SPA500 Series IP
   Phones could allow an attacker to execute arbitrary commands on the
   underlying operating system or cause a denial of service (DoS) condition.
   
   For more information about these vulnerabilities, see the Details section of
   this advisory.
   
   Cisco has not released software updates that address these vulnerabilities.
   There are no workarounds that address these vulnerabilities.
   
   This advisory is available at the following link:
   https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-spa-http-vulns-RJZmX2Xz

AFFECTED PRODUCTS


 * VULNERABLE PRODUCTS
   
   These vulnerabilities affect all software releases that run on Cisco Small
   Business SPA300 Series and Cisco Small Business SPA500 Series IP Phones,
   regardless of the configuration.
   
   
   PRODUCTS CONFIRMED NOT VULNERABLE
   
   Only products listed in the Vulnerable Products section of this advisory are
   known to be affected by these vulnerabilities.

DETAILS

 * The vulnerabilities are not dependent on one another. Exploitation of one of
   the vulnerabilities is not required to exploit another vulnerability.
   
   Details about the vulnerabilities are as follows:
   
   CVE-2024-20450, CVE-2024-20452, and CVE-2024-20454: Cisco Small Business
   SPA300 Series and SPA500 Series IP Phones Web UI Arbitrary Command Execution
   Vulnerability
   
   Multiple vulnerabilities in the web-based management interface of Cisco Small
   Business SPA300 Series IP Phones and Cisco Small Business SPA500 Series IP
   Phones could allow an unauthenticated, remote attacker to execute arbitrary
   commands on the underlying operating system with root privileges.
   
   These vulnerabilities exist because incoming HTTP packets are not properly
   checked for errors, which could result in a buffer overflow. An attacker
   could exploit this vulnerability by sending a crafted HTTP request to an
   affected device. A successful exploit could allow the attacker to overflow an
   internal buffer and execute arbitrary commands at the root privilege level.
   
   Cisco has not released software updates that address these vulnerabilities.
   There are no workarounds that address these vulnerabilities.
   
   Bug ID(s): CSCwk31988
   CVE ID: CVE-2024-20450, CVE-2024-20452, and CVE-2024-20454
   Security Impact Rating (SIR): High
   CVSS Base Score: 9.8
   CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
   
   CVE-2024-20451 and CVE-2024-20453: Cisco Small Business SPA300 Series and
   SPA500 Series IP Phones Web UI DoS Vulnerability
   
   Multiple vulnerabilities in the web-based management interface of Cisco Small
   Business SPA300 Series IP Phones and Cisco Small Business SPA500 Series IP
   Phones could allow an unauthenticated, remote attacker to cause an affected
   device to reload unexpectedly.
   
   These vulnerabilities exist because HTTP packets are not properly checked for
   errors. An attacker could exploit this vulnerability by sending a crafted
   HTTP packet to the remote interface of an affected device. A successful
   exploit could allow the attacker to cause a DoS condition on the device.
   
   Cisco has not released software updates that address these vulnerabilities.
   There are no workarounds that address these vulnerabilities.
   
   Bug ID(s): CSCwk31988
   CVE ID: CVE-2024-20451 and CVE-2024-20453
   SIR: High
   CVSS Base Score: 7.5
   CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

WORKAROUNDS

 * There are no workarounds that address these vulnerabilities.

FIXED SOFTWARE

 * Cisco has not released and will not release software updates to address the
   vulnerabilities that are described in this advisory. Cisco Small Business
   SPA300 Series IP Phones and Cisco Small Business SPA500 Series IP Phones have
   entered the end-of-life process. Customers are advised to refer to the
   end-of-life notices for these products:
   
    * End-of-Sale and End-of-Life Announcement for the Cisco IP Phones SPA300
      Series Selected Models
    * End-of-Sale and End-of-Life Announcement for the Cisco Small Business
      SPA303 Series IP Phone
    * End-of-Sale and End-of-Life Announcement for All Remaining Cisco Small
      Business SPA500 Series IP Phones
   
   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 product type 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

 * 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

 * Cisco would like to thank Aidan of BAE Systems Digital Intelligence for
   reporting these vulnerabilities.

CISCO SECURITY VULNERABILITY POLICY

 * 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.

SUBSCRIBE TO CISCO SECURITY NOTIFICATIONS

 * Subscribe

RELATED TO THIS ADVISORY

 * 

URL

 * https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-spa-http-vulns-RJZmX2Xz

REVISION HISTORY

 * Version Description Section Status Date 1.0 Initial public release. - Final
   2024-AUG-07
   
   Show Less

--------------------------------------------------------------------------------

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.

FEEDBACK

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CISCO SECURITY VULNERABILITY POLICY

 * 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.

SUBSCRIBE TO CISCO SECURITY NOTIFICATIONS

 * Subscribe

RELATED TO THIS ADVISORY

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