CVE-2021-29296

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Attend

*SSVC

Descriptions

Null Pointer Dereference vulnerability in D-Link DIR-825 2.10b02, which could let a remote malicious user cause a denial of service. The vulnerability could be triggered by sending an HTTP request with URL /vct_wan; the sbin/httpd would invoke the strchr function and take NULL as a first argument, which finally leads to the segmentation fault. NOTE: The DIR-825 and all hardware revisions is considered End of Life and as such this issue will not be patched

Vulnerabilidad de Desreferencia de Puntero Null en D-Link DIR-825 versión 2.10b02, que podría permitir a un usuario malicioso remoto causar una denegación de servicio. La vulnerabilidad podría ser desencadenada mediante el envío de una petición HTTP con la URL /vct_wan; el sbin/httpd invocaría la función strchr y tomaría NULL como primer argumento, lo que finalmente conlleva a el fallo de segmentación. NOTA: El DIR-825 y todas las revisiones de hardware se consideran Fin de Vida y como tal este problema no será parcheado

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:Attend

Exploitation

None

Automatable

Yes

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2021-03-29 CVE Reserved
2021-08-10 CVE Published
2024-04-25 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-476: NULL Pointer Dereference

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://supportannouncement.us.dlink.com/announcement/publication.aspx?name=SAP10212	2024-06-04
https://www.dlink.com/en/security-bulletin	2024-06-04

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Dlink Search vendor "Dlink"	Dir-825 Firmware Search vendor "Dlink" for product "Dir-825 Firmware"	2.10b02 Search vendor "Dlink" for product "Dir-825 Firmware" and version "2.10b02"	-	Affected	in	Dlink Search vendor "Dlink"	Dir-825 Search vendor "Dlink" for product "Dir-825"	-	-	Safe

* End Of Life in some or all products. Do not expect updates.