ZdiVULNRICHMENT:CVE-2023-27333CVE-2023-27333 TP-Link Archer AX21 tmpServer Command 0x422 Stack-based Buffer Overflow Remote Code Execution Vulnerability
6.8 Medium
CVSS3
Attack Vector
ADJACENT
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
7.9 High
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
29.0%
TP-Link Archer AX21 tmpServer Command 0x422 Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of TP-Link Archer AX21 routers. Authentication is required to exploit this vulnerability.
The specific flaw exists within the handling of command 0x422 provided to the tmpServer service. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-19905.
CNA Affected
[
{
"vendor": "TP-Link",
"product": "Archer AX21",
"versions": [
{
"version": "R.47.0.0 AutoCAD 2021 & R.47.0.0 AutoCAD LT 2021",
"status": "affected"
}
],
"defaultStatus": "unknown"
}
]
6.8 Medium
CVSS3
Attack Vector
ADJACENT
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
7.9 High
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
29.0%