This vulnerability allows a firewall bypass on affected installations of TP-Link Archer A7 prior to Archer C7(US)_V5_210125 and Archer A7(US)_V5_200220 AC1750 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of IPv6 connections. The issue results from the lack of proper filtering of IPv6 SSH connections. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of root. Was ZDI-CAN-12309.
References
| Link | Resource |
|---|---|
| https://www.zerodayinitiative.com/advisories/ZDI-21-214/ | Third Party Advisory VDB Entry |
Configurations
History
01 Apr 2021, 18:46
| Type | Values Removed | Values Added |
|---|---|---|
| References | (N/A) https://www.zerodayinitiative.com/advisories/ZDI-21-214/ - Third Party Advisory, VDB Entry | |
| CVSS |
v2 : v3 : |
v2 : 9.3
v3 : 8.1 |
| CPE | cpe:2.3:o:tp-link:archer_a7_firmware:*:*:*:*:*:*:*:* cpe:2.3:h:tp-link:archer_a7:-:*:*:*:*:*:*:* |
29 Mar 2021, 22:15
| Type | Values Removed | Values Added |
|---|---|---|
| Summary | This vulnerability allows a firewall bypass on affected installations of TP-Link Archer A7 prior to Archer C7(US)_V5_210125 and Archer A7(US)_V5_200220 AC1750 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of IPv6 connections. The issue results from the lack of proper filtering of IPv6 SSH connections. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of root. Was ZDI-CAN-12309. | |
| CWE | CWE-693 |
29 Mar 2021, 21:15
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2021-03-29 21:15
Updated : 2023-12-10 13:55
NVD link : CVE-2021-27245
Mitre link : CVE-2021-27245
CVE.ORG link : CVE-2021-27245
JSON object : View
Products Affected
tp-link
- archer_a7_firmware
- archer_a7
CWE
CWE-693
Protection Mechanism Failure