Products
Cisco Small Business SPA300 Series IP Phones
Cisco Small Business SPA500 Series IP Phones
Source
ykramarz@cisco.com
Tags
CVE-2024-20450 details
Last Modified : Aug. 7, 2024, 7:09 p.m.
Description
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.
CVSS Score
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9.8 | 10 |
|---|
Weakness
| Weakness | Name | Description |
|---|---|---|
| CWE-120 | Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') | The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. |
CVSS Data
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Base Score
9.8
Exploitability Score
3.9
Impact Score
5.9
Base Severity
CRITICAL
Vector String : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
| URL | Source |
|---|---|
| https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-spa-http-vulns-RJZmX2Xz | ykramarz@cisco.com |