CVE-2024-20450

Published Aug 7, 2024 CVSS 3.1 · 9.8 Critical EPSS 7.2% KEV · Not listed

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.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Cisco

Cisco Small Business IP Phones

affected

Version	Status	Constraints
`7.6.0`	affected	—
`7.6.2`	affected	—
`7.6.2SR3`	affected	—
`7.6.2SR6`	affected	—
`7.6.2SR2`	affected	—
`7.6.2SR4`	affected	—
`7.6.2SR1`	affected	—
`7.6.2SR5`	affected	—
`7.6.2SR7`	affected	—
`7.6.1`	affected	—
`7.3.7`	affected	—
`7.5.5`	affected	—
`7.5.6(XU)`	affected	—
`7.5.2`	affected	—
`7.5.2a`	affected	—
`7.5.7`	affected	—
`7.5.3`	affected	—
`7.5.6`	affected	—
`7.5.2b`	affected	—
`7.5.6c`	affected	—
`7.5.6a`	affected	—
`7.5.7s`	affected	—
`7.5.1`	affected	—
`7.5.5a`	affected	—
`7.5.5b`	affected	—
`7.5.4`	affected	—
`7.4.7`	affected	—
`7.4.4`	affected	—
`7.4.8`	affected	—
`7.4.3`	affected	—
`7.4.9`	affected	—
`7.4.6`	affected	—
`1.0.17`	affected	—

Configuration 1 [-]

AND

cpe:2.3:o:cisco:spa_301_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:cisco:spa_301_1_line_ip_phone:-:*:*:*:*:*:*:*

Configuration 2 [-]

AND

cpe:2.3:o:cisco:spa_303_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:cisco:spa_303_3_line_ip_phone:-:*:*:*:*:*:*:*

Configuration 3 [-]

AND

cpe:2.3:o:cisco:spa_501g_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:cisco:spa_501g_8-line_ip_phone:-:*:*:*:*:*:*:*

Configuration 4 [-]

AND

cpe:2.3:o:cisco:spa_502g_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:cisco:spa_502g_1-line_ip_phone:-:*:*:*:*:*:*:*

Configuration 5 [-]

AND

cpe:2.3:o:cisco:spa_504g_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:cisco:spa_504g_4-line_ip_phone:-:*:*:*:*:*:*:*

Configuration 6 [-]

AND

cpe:2.3:o:cisco:spa_508g_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:cisco:spa_508g_8-line_ip_phone:-:*:*:*:*:*:*:*

Configuration 7 [-]

AND

cpe:2.3:o:cisco:spa_509g_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:cisco:spa_509g_12-line_ip_phone:-:*:*:*:*:*:*:*

Configuration 8 [-]

AND

cpe:2.3:o:cisco:spa_512g_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:cisco:spa_512g_1-line_ip_phone:-:*:*:*:*:*:*:*

Configuration 9 [-]

AND

cpe:2.3:o:cisco:spa_514g_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:cisco:spa_514g_4-line_ip_phone:-:*:*:*:*:*:*:*

Configuration 10 [-]

AND

cpe:2.3:o:cisco:spa_525g_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:cisco:spa_525g_5-line_ip_phone:-:*:*:*:*:*:*:*

Configuration 11 [-]

AND

cpe:2.3:o:cisco:spa_525g2_firmware:*:*:*:*:*:*:*:*

cpe:2.3:h:cisco:spa_525g2_5-line_ip_phone:-:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No solution or workaround provided in the CVE record

Tracking

Advisories

No advisories available

Metrics

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: 7.2% (7.225% probability within 30 days)

Exploitation none

Automatable yes

Technical Impact total

References

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

History

Aug 23, 2024 6:30 PM First appearance in the feed. Affected versions updated. Affected vendors updated View changes

Type	Values Removed	Values Added
First Time appeared		Cisco spa 301 1 Line Ip Phone Cisco spa 301 Firmware Cisco spa 303 3 Line Ip Phone Cisco spa 303 Firmware Cisco spa 501g 8-line Ip Phone Cisco spa 501g Firmware Cisco spa 502g 1-line Ip Phone Cisco spa 502g Firmware Cisco spa 504g 4-line Ip Phone Cisco spa 504g Firmware Cisco spa 508g 8-line Ip Phone Cisco spa 508g Firmware Cisco spa 509g 12-line Ip Phone Cisco spa 509g Firmware Cisco spa 512g 1-line Ip Phone Cisco spa 512g Firmware Cisco spa 514g 4-line Ip Phone Cisco spa 514g Firmware Cisco spa 525g2 5-line Ip Phone Cisco spa 525g2 Firmware Cisco spa 525g 5-line Ip Phone Cisco spa 525g Firmware
CPEs		cpe:2.3:h:cisco:spa_301_1_line_ip_phone:-:::::::* cpe:2.3:h:cisco:spa_303_3_line_ip_phone:-:::::::* cpe:2.3:h:cisco:spa_501g_8-line_ip_phone:-:::::::* cpe:2.3:h:cisco:spa_502g_1-line_ip_phone:-:::::::* cpe:2.3:h:cisco:spa_504g_4-line_ip_phone:-:::::::* cpe:2.3:h:cisco:spa_508g_8-line_ip_phone:-:::::::* cpe:2.3:h:cisco:spa_509g_12-line_ip_phone:-:::::::* cpe:2.3:h:cisco:spa_512g_1-line_ip_phone:-:::::::* cpe:2.3:h:cisco:spa_514g_4-line_ip_phone:-:::::::* cpe:2.3:h:cisco:spa_525g2_5-line_ip_phone:-:::::::* cpe:2.3:h:cisco:spa_525g_5-line_ip_phone:-:::::::* cpe:2.3:o:cisco:spa_301_firmware:::::::: cpe:2.3:o:cisco:spa_303_firmware:::::::: cpe:2.3:o:cisco:spa_501g_firmware:::::::: cpe:2.3:o:cisco:spa_502g_firmware:::::::: cpe:2.3:o:cisco:spa_504g_firmware:::::::: cpe:2.3:o:cisco:spa_508g_firmware:::::::: cpe:2.3:o:cisco:spa_509g_firmware:::::::: cpe:2.3:o:cisco:spa_512g_firmware:::::::: cpe:2.3:o:cisco:spa_514g_firmware:::::::: cpe:2.3:o:cisco:spa_525g2_firmware:::::::: cpe:2.3:o:cisco:spa_525g_firmware::::::::
Vendors & Products		Cisco spa 301 1 Line Ip Phone Cisco spa 301 Firmware Cisco spa 303 3 Line Ip Phone Cisco spa 303 Firmware Cisco spa 501g 8-line Ip Phone Cisco spa 501g Firmware Cisco spa 502g 1-line Ip Phone Cisco spa 502g Firmware Cisco spa 504g 4-line Ip Phone Cisco spa 504g Firmware Cisco spa 508g 8-line Ip Phone Cisco spa 508g Firmware Cisco spa 509g 12-line Ip Phone Cisco spa 509g Firmware Cisco spa 512g 1-line Ip Phone Cisco spa 512g Firmware Cisco spa 514g 4-line Ip Phone Cisco spa 514g Firmware Cisco spa 525g2 5-line Ip Phone Cisco spa 525g2 Firmware Cisco spa 525g 5-line Ip Phone Cisco spa 525g Firmware

Aug 22, 2024 4:30 PM First appearance in the feed. Affected versions updated. Affected vendors updated. Scoring metrics updated View changes

Type	Values Removed	Values Added
First Time appeared		Cisco Cisco small Business Ip Phone Firmware
CPEs		cpe:2.3:a:cisco:small_business_ip_phone_firmware::::::::
Vendors & Products		Cisco Cisco small Business Ip Phone Firmware
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Aug 7, 2024 5:00 PM Description updated. Weaknesses updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
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.
Weaknesses		CWE-120
References		https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-spa-http-vulns-RJZmX2Xz
Metrics		cvssV3_1 `{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}`

Subscriptions

Cisco Small Business Ip Phone Firmware Spa 301 1 Line Ip Phone Spa 301 Firmware Spa 303 3 Line Ip Phone Spa 303 Firmware Spa 501g 8-line Ip Phone Spa 501g Firmware Spa 502g 1-line Ip Phone Spa 502g Firmware Spa 504g 4-line Ip Phone Spa 504g Firmware Spa 508g 8-line Ip Phone Spa 508g Firmware Spa 509g 12-line Ip Phone Spa 509g Firmware Spa 512g 1-line Ip Phone Spa 512g Firmware Spa 514g 4-line Ip Phone Spa 514g Firmware Spa 525g2 5-line Ip Phone Spa 525g2 Firmware Spa 525g 5-line Ip Phone Spa 525g Firmware

Weaknesses