Multiple vulnerabilities in TP-Link TL-WR940N
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2022-43636 CVE-2022-43635 |
| CWE-ID | CWE-330 CWE-303 |
| Exploitation vector | Local network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
TL-WR940N Hardware solutions / Routers for home users |
| Vendor |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Use of insufficiently random values
EUVDB-ID: #VU69569
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2022-43636
CWE-ID:
CWE-330 - Use of Insufficiently Random Values
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to the lack of sufficient randomness in the sequnce numbers used for session managment within the httpd service. A remote attacker on the local network can bypass authentication process and gain unauthorized access to the application.
MitigationInstall updates from vendor's website.
Vulnerable software versionsTL-WR940N: before 6_3.20.1 Build 220801
External linkshttp://www.zerodayinitiative.com/advisories/ZDI-22-1614/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) Incorrect Implementation of Authentication Algorithm
EUVDB-ID: #VU69570
Risk: Low
CVSSv3.1: 5.7 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2022-43635
CWE-ID:
CWE-303 - Incorrect Implementation of Authentication Algorithm
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to the incorrect implementation of the authentication algorithm within the httpd service. A remote attacker on the local network can gain unauthorized access to sensitive information on the system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsTL-WR940N: before 6_3.20.1 Build 220801
External linkshttp://www.zerodayinitiative.com/advisories/ZDI-22-1615/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
