// For flags

CVE-2022-43635

TP-Link TL-WR940N httpd Incorrect Implementation of Authentication Algorithm Information Disclosure Vulnerability

Severity Score

6.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of TP-Link TL-WR940N 6_211111 3.20.1(US) routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the httpd service, which listens on TCP port 80 by default. The issue results from the incorrect implementation of the authentication algorithm. An attacker can leverage this vulnerability to disclose stored credentials, leading to further compromise. Was ZDI-CAN-17332.

This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of TP-Link TL-WR940N routers. Authentication is not required to exploit this vulnerability.
The specific flaw exists within the httpd service, which listens on TCP port 80 by default. The issue results from the incorrect implementation of the authentication algorithm. An attacker can leverage this vulnerability to disclose stored credentials, leading to further compromise.

*Credits: ExLuck
CVSS Scores
Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2022-10-21 CVE Reserved
  • 2022-11-21 CVE Published
  • 2024-08-03 CVE Updated
  • 2024-09-08 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-303: Incorrect Implementation of Authentication Algorithm
CAPEC
References (1)
URL Tag Source
https://www.zerodayinitiative.com/advisories/ZDI-22-1615 Third Party Advisory
URL Date SRC
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
Tp-link
Search vendor "Tp-link"
 Tl-wr940n Firmware
Search vendor "Tp-link" for product "Tl-wr940n Firmware"
 6_211111_3.20.1
Search vendor "Tp-link" for product "Tl-wr940n Firmware" and version "6_211111_3.20.1"
-
Affected
in Tp-link
Search vendor "Tp-link"
 Tl-wr940n
Search vendor "Tp-link" for product "Tl-wr940n"
--
Safe