CVE-2021-34983
NETGEAR Multiple Routers httpd Missing Authentication for Critical Function Information Disclosure Vulnerability.
Impact
NETGEAR Multiple Routers httpd Missing Authentication for Critical Function Information Disclosure Vulnerability. This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of multiple NETGEAR 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 authentication prior to allowing access to system configuration information. An attacker can leverage this vulnerability to disclose stored credentials, leading to further compromise. Was ZDI-CAN-13708.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Netgear | Xr1000 Firmware | before 1.0.0.64 |
| Netgear | Xr300 Firmware | before 1.0.3.68 |
| Netgear | D6220 Firmware | before 1.0.0.76 |
| Netgear | D6400 Firmware | before 1.0.0.108 |
| Netgear | D7000v2 Firmware | before 1.0.0.76 |
| Netgear | Dgn2200v4 Firmware | before 1.0.0.126 |
| Netgear | V6510-1fxaus Firmware | before 1.0.0.80 |
| Netgear | Dc112a Firmware | before 1.0.0.62 |
| Netgear | Ex3700 Firmware | before 1.0.0.94 |
| Netgear | Ex3800 Firmware | before 1.0.0.94 |
| Netgear | Ex6120 Firmware | before 1.0.0.66 |
| Netgear | Ex6130 Firmware | before 1.0.0.46 |
Weakness classification
References
- NVD record
- CVE.org record
- https://kb.netgear.com/000064313/Security-Advisory-for-Pre-Authentication-Buffer-Overflow-on-Some-Extenders-Routers-and-DSL-Modem-Routers-PSV-2021-0159
- https://www.zerodayinitiative.com/advisories/ZDI-21-1275/
- https://kb.netgear.com/000064313/Security-Advisory-for-Pre-Authentication-Buffer-Overflow-on-Some-Extenders-Routers-and-DSL-Modem-Routers-PSV-2021-0159
- https://www.zerodayinitiative.com/advisories/ZDI-21-1275/