// For flags

CVE-2024-0997

Totolink N200RE cstecgi.cgi setOpModeCfg stack-based overflow

Severity Score

8.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

A vulnerability was found in Totolink N200RE 9.3.5u.6139_B20201216 and classified as critical. Affected by this issue is the function setOpModeCfg of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument pppoeUser leads to stack-based buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. VDB-252266 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Una vulnerabilidad fue encontrada en Totolink N200RE 9.3.5u.6139_B20201216 y clasificada como crítica. La función setOpModeCfg del archivo /cgi-bin/cstecgi.cgi es afectada por esta vulnerabilidad. La manipulación del argumento pppoeUser provoca un Totolink N200RE 9.3.5u.6139_B20201216. El ataque puede lanzarse de forma remota. El exploit ha sido divulgado al público y puede utilizarse. VDB-252266 es el identificador asignado a esta vulnerabilidad. NOTA: Se contactó primeramente con el proveedor sobre esta divulgación, pero no respondió de ninguna manera.

Eine Schwachstelle wurde in Totolink N200RE 9.3.5u.6139_B20201216 gefunden. Sie wurde als kritisch eingestuft. Es geht hierbei um die Funktion setOpModeCfg der Datei /cgi-bin/cstecgi.cgi. Durch die Manipulation des Arguments pppoeUser mit unbekannten Daten kann eine stack-based buffer overflow-Schwachstelle ausgenutzt werden. Der Angriff kann über das Netzwerk angegangen werden. Der Exploit steht zur öffentlichen Verfügung.

*Credits: jylsec
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
Multiple
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
Poc
Automatable
No
Tech. Impact
Total
* Organization's Worst-case Scenario
Timeline
  • 2024-01-29 CVE Reserved
  • 2024-01-29 CVE Published
  • 2024-09-05 CVE Updated
  • 2024-09-05 First Exploit
  • 2024-10-10 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-121: Stack-based Buffer Overflow
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Totolink
Search vendor "Totolink"
 N200re Firmware
Search vendor "Totolink" for product "N200re Firmware"
 9.3.5u.6139_b20201216
Search vendor "Totolink" for product "N200re Firmware" and version "9.3.5u.6139_b20201216"
-
Affected
in Totolink
Search vendor "Totolink"
 N200re
Search vendor "Totolink" for product "N200re"
--
Safe