SecuriTricks - CVE-2024-8408

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.

Product(s) Impacted

Vendor	Product	Versions
Linksys	Wrt54g Firmware Wrt54g	4.21.5 -

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-121

Stack-based Buffer Overflow

A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).

CWE-787

Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

*CPE(s)

Affected systems and software identified for this CVE.

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
o	linksys	wrt54g_firmware	4.21.5	/	/	/	/	/	/	/
h	linksys	wrt54g	-	/	/	/	/	/	/	/

References

https://github.com/BuaaIOTTeam/Iot_Linksys/blob/main/Linksys_WRT54G_validate_services_port.md

https://vuldb.com/?ctiid.276488

https://vuldb.com/?id.276488

https://vuldb.com/?submit.398567

https://www.linksys.com/

CVSS Score

9.8 / 10

CVSS Data - 3.1

Attack Vector: NETWORK
Attack Complexity: LOW
Privileges Required: NONE
Scope: UNCHANGED
Confidentiality Impact: HIGH
Integrity Impact: HIGH
Availability Impact: HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

View Vector String

Timeline

Published: Sept. 4, 2024, 2:15 p.m.
Last Modified: Sept. 5, 2024, 2:41 p.m.

Status : Analyzed

CVE has had analysis completed and all data associations made.

More info

Source

cna@vuldb.com

CVE-2024-8408