// For flags

CVE-2024-7331

TOTOLINK A3300R cstecgi.cgi UploadCustomModule buffer overflow

Severity Score

8.7
*CVSS v4

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 A3300R 17.0.0cu.557_B20221024 and classified as critical. Affected by this issue is the function UploadCustomModule of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument File leads to buffer overflow. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. VDB-273254 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 A3300R 17.0.0cu.557_B20221024 y clasificada como crítica. La función UploadCustomModule del archivo /cgi-bin/cstecgi.cgi es afectada por esta vulnerabilidad. La manipulación del argumento File provoca un desbordamiento dl búfer. El ataque puede lanzarse de forma remota. El exploit ha sido divulgado al público y puede utilizarse. VDB-273254 es el identificador asignado a esta vulnerabilidad. NOTA: Se contactó al proveedor tempranamente sobre esta divulgación, pero no respondió de ninguna manera.

Eine Schwachstelle wurde in TOTOLINK A3300R 17.0.0cu.557_B20221024 gefunden. Sie wurde als kritisch eingestuft. Hierbei geht es um die Funktion UploadCustomModule der Datei /cgi-bin/cstecgi.cgi. Durch die Manipulation des Arguments File mit unbekannten Daten kann eine buffer overflow-Schwachstelle ausgenutzt werden. Umgesetzt werden kann der Angriff über das Netzwerk. Der Exploit steht zur öffentlichen Verfügung.

*Credits: yhryhryhr_miemie
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
Low
User Interaction
None
System
Vulnerable | Subsequent
Confidentiality
High
None
Integrity
High
None
Availability
High
None
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
Authentication
Single
Confidentiality
Complete
Integrity
Complete
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
Poc
Automatable
Yes
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-07-31 CVE Reserved
  • 2024-08-01 CVE Published
  • 2024-08-01 CVE Updated
  • 2024-08-01 First Exploit
  • 2024-08-02 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-120: Buffer Copy without Checking Size of Input ('Classic 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"
 A3300r Firmware
Search vendor "Totolink" for product "A3300r Firmware"
*-
Affected