high8.8
CVE-2021-34947
NETGEAR R7800 net-cgi Out-Of-Bounds Write Remote Code Execution Vulnerability.
Impact
NETGEAR R7800 net-cgi Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R7800 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the parsing of the soap_block_table file. The issue results from the lack of proper validation of user-supplied data, which can result in a write past the end of an allocated data structure. An attacker can leverage this vulnerability to execute code in the context of root. . Was ZDI-CAN-13055.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Netgear | D7800 Firmware | before 1.0.1.64 |
| Netgear | Ex2700 Firmware | before 1.0.1.66 |
| Netgear | Ex6100 Firmware | before 1.0.1.106 |
| Netgear | Ex6150 Firmware | before 1.0.1.106 |
| Netgear | Ex6200 Firmware | before 1.0.1.86 |
| Netgear | Ex6250 Firmware | before 1.0.0.146 |
| Netgear | Ex6400 Firmware | before 1.0.2.164 |
| Netgear | Ex6400v2 Firmware | before 1.0.0.146 |
| Netgear | Ex6410 Firmware | before 1.0.0.146 |
| Netgear | Ex6420 Firmware | before 1.0.0.146 |
| Netgear | Ex6500v1 Firmware | before 1.0.0.146 |
| Netgear | Ex7300 Firmware | before 1.0.2.164 |
Weakness classification
References
- NVD record
- CVE.org record
- https://kb.netgear.com/000064044/Security-Advisory-for-Pre-Authentication-Buffer-Overflow-on-Some-Routers-PSV-2021-0129
- https://www.zerodayinitiative.com/advisories/ZDI-21-1116/
- https://kb.netgear.com/000064044/Security-Advisory-for-Pre-Authentication-Buffer-Overflow-on-Some-Routers-PSV-2021-0129
- https://www.zerodayinitiative.com/advisories/ZDI-21-1116/