CVE-2022-43636
8.8 High
CVSS3
Attack Vector
ADJACENT
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8 High
AI Score
Confidence
High
0.0005 Low
EPSS
Percentile
16.4%
This vulnerability allows network-adjacent attackers to bypass authentication 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 lack of sufficient randomness in the sequnce numbers used for session managment. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-18334.
Affected configurations
| CPE | Name | Operator | Version |
|---|---|---|---|
| tp-link:tl-wr940n_firmware | tp-link tl-wr940n firmware | eq | 6_211111_3.20.1 |
CNA Affected
[
{
"vendor": "TP-Link",
"product": "TL-WR940N",
"versions": [
{
"version": "6_211111 3.20.1(US)",
"status": "affected"
}
]
}
]Related
8.8 High
CVSS3
Attack Vector
ADJACENT
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8 High
AI Score
Confidence
High
0.0005 Low
EPSS
Percentile
16.4%