Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Netgear | Xr1000 Firmware | < 1.0.0.64 |
| Netgear | Xr1000 | - |
| Netgear | Xr300 Firmware | < 1.0.3.68 |
| Netgear | Xr300 | - |
| Netgear | D6220 Firmware | < 1.0.0.76 |
| Netgear | D6220 | - |
| Netgear | D6400 Firmware | < 1.0.0.108 |
| Netgear | D6400 | - |
| Netgear | D7000V2 Firmware | < 1.0.0.76 |
| Netgear | D7000V2 | - |
| Netgear | Dgn2200V4 Firmware | < 1.0.0.126 |
| Netgear | Dgn2200V4 | - |
| Netgear | V6510-1Fxaus Firmware | < 1.0.0.80 |
| Netgear | V6510-1Fxaus | - |
| Netgear | Dc112A Firmware | < 1.0.0.62 |
| Netgear | Dc112A | - |
| Netgear | Ex3700 Firmware | < 1.0.0.94 |
| Netgear | Ex3700 | - |
| Netgear | Ex3800 Firmware | < 1.0.0.94 |
| Netgear | Ex3800 | - |
Related Weaknesses (CWE)
References
- https://kb.netgear.com/000064313/Security-Advisory-for-Pre-Authentication-BufferVendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-21-1275/Third Party Advisory
- https://kb.netgear.com/000064313/Security-Advisory-for-Pre-Authentication-BufferVendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-21-1275/Third Party Advisory
FAQ
What is CVE-2021-34983?
CVE-2021-34983 is a vulnerability with a CVSS score of 6.5 (MEDIUM). NETGEAR Multiple Routers httpd Missing Authentication for Critical Function Information Disclosure Vulnerability. This vulnerability allows network-adjacent attackers to disclose sensitive information...
How severe is CVE-2021-34983?
CVE-2021-34983 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-34983?
Check the references section above for vendor advisories and patch information. Affected products include: Netgear Xr1000 Firmware, Netgear Xr1000, Netgear Xr300 Firmware, Netgear Xr300, Netgear D6220 Firmware.