Remote Code Execution Vulnerability in NETGEAR R7800 Firmware
CVE-2021-27255

6.3MEDIUM

Key Information:

Vendor
Netgear
Status
R7800
Vendor
CVE Published:
5 March 2021

Summary

A vulnerability in the NETGEAR R7800 firmware allows attackers to execute arbitrary code remotely without authentication. The flaw is located in the refresh_status.aspx endpoint, where insufficient authentication mechanisms permit unauthorized service initiation on the server. This situation can lead to an attacker executing code with root privileges, potentially compromising the entire system. This vulnerability raises serious security concerns for users of the affected firmware version.

Affected Version(s)

R7800 firmware version 1.0.2.76

References

https://kb.netgear.com/000062883/Security-Advisory-for-Mu...
x_refsource_MISC
https://www.zerodayinitiative.com/advisories/ZDI-21-263/
x_refsource_MISC

CVSS V3.1

Score:
6.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

STARLabs
.