CVE-2024-8408 - CVE House

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Status published Medium CVE-2024-8408

Linksys WRT54G POST Parameter apply.cgi validate_services_port stack-based overflow

5.3 CVSS

Vulnerability Description

A vulnerability was found in Linksys WRT54G 4.21.5. It has been rated as critical. Affected by this issue is the function validate_services_port of the file /apply.cgi of the component POST Parameter Handler. The manipulation of the argument services_array leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

Buaa1otTeam (VulDB User)

References

More from Linksys

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Linksys RE6250/RE6300/RE6350/RE6500/RE7000/RE9000 upload.cgi cgiMain os command injection

Linksys E1700 systemCommand os command injection

Linksys E1700 QoSSetup stack-based overflow

Linksys E1700 setSysAdm stack-based overflow

Linksys E1700 setWan stack-based overflow

Affected Vendor

Linksys

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Affected Software

WRT54G

Vulnerable Versions:

4.21.5

Timeline

Official Publish: September 4th, 2024

Last Modified: September 4th, 2024

Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Weaknesses (CWE)

MITRE ATT&CK TTPs

T1190 Exploit Public-Facing Application

T1068 Exploitation for Privilege Escalation

Privilege Escalation

T1055 Process Injection

Defense Evasion

T1105 Ingress Tool Transfer

Command and Control

T1485 Data Destruction