Remote Code Execution Vulnerability in NETGEAR R7800 Routers

CVE-2021-34947

8.8HIGH

Key Information

Vendor
Netgear
Status
R7800
Vendor
CVE Published:
7 May 2024

Summary

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 Version(s)

R7800 = 1.0.2.82

References

https://www.zerodayinitiative.com/advisories/ZDI-21-1116/
x_research-advisory
https://kb.netgear.com/000064044/Security-Advisory-for-Pr...
vendor-advisory

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Collectors

NVD DatabaseMitre Database
.