Totolink N200RE cstecgi.cgi setLanguageCfg stack-based overflow
CVE-2024-1003

8.8HIGH

Key Information:

Vendor
Totolink
Status
N200RE
Vendor
CVE Published:
29 January 2024

Badges

👾 Exploit Exists🟡 Public PoC

Summary

A vulnerability has been identified in the Totolink N200RE router, specifically in the setLanguageCfg function found within the /cgi-bin/cstecgi.cgi file. This weakness allows for a stack-based buffer overflow, which can be triggered by manipulating the 'lang' argument. The nature of this exploitation enables remote attackers to execute arbitrary code when the flaw is leveraged. Despite early notifications to the vendor regarding the vulnerability details, there has been no communication from Totolink. The potential for exploitation remains high, particularly as the details of the exploit have been made public.

Affected Version(s)

N200RE 9.3.5u.6139_B20201216

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2024-1003 - Proof of Concept

References

https://vuldb.com/?id.252272
vdb-entrytechnical-description
https://vuldb.com/?ctiid.252272
signaturepermissions-required
https://jylsec.notion.site/TOTOLINK-N200RE-has-stack-buff...
exploit

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

jylsec (VulDB User)
.