// For flags

CVE-2023-0782

Tenda AC23 httpd formGetSysToolDDNS out-of-bounds write

Severity Score

9.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A vulnerability was found in Tenda AC23 16.03.07.45 and classified as critical. Affected by this issue is the function formSetSysToolDDNS/formGetSysToolDDNS of the file /bin/httpd. The manipulation leads to out-of-bounds write. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-220640.

Eine Schwachstelle wurde in Tenda AC23 16.03.07.45 gefunden. Sie wurde als kritisch eingestuft. Davon betroffen ist die Funktion formSetSysToolDDNS/formGetSysToolDDNS der Datei /bin/httpd. Mit der Manipulation mit unbekannten Daten kann eine out-of-bounds write-Schwachstelle ausgenutzt werden. Der Angriff kann über das Netzwerk erfolgen. Der Exploit steht zur öffentlichen Verfügung.

*Credits: wjp911
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
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:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2023-02-11 CVE Reserved
  • 2023-02-11 CVE Published
  • 2024-08-02 CVE Updated
  • 2024-08-02 First Exploit
  • 2024-10-02 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-787: Out-of-bounds Write
CAPEC
References (2)
URL Tag Source
https://vuldb.com/?id.220640 Technical Description
URL Date SRC
https://github.com/jingping911/tendaAC23overflow/blob/main/README.md 2024-08-02
URL Date SRC
URL Date SRC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Tenda
Search vendor "Tenda"
 Ac23 Firmware
Search vendor "Tenda" for product "Ac23 Firmware"
 16.03.07.45
Search vendor "Tenda" for product "Ac23 Firmware" and version "16.03.07.45"
-
Affected
in Tenda
Search vendor "Tenda"
 Ac23
Search vendor "Tenda" for product "Ac23"
--
Safe