Buffer Overflow Vulnerability in NETGEAR R6700 Router
CVE-2020-15635

8.8HIGH

Key Information:

Vendor
Netgear
Status
R6700
Vendor
CVE Published:
20 August 2020

Summary

This vulnerability permits remote attackers to execute arbitrary code on NETGEAR R6700 routers running firmware version 1.0.4.84_10.0.58 due to a buffer overflow in the acsd service. The service, which operates on TCP port 5916 by default, lacks proper validation of user-supplied data lengths before copying to a fixed-length buffer. As this issue is exploitable without authentication, attackers can potentially take control of the router with admin privileges.

Affected Version(s)

R6700 1.0.4.84_10.0.58

References

https://www.zerodayinitiative.com/advisories/ZDI-20-936/
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https://kb.netgear.com/000062127/Security-Advisory-for-Pr...
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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

Credit

Pedro Ribeiro (@pedrib1337 | [email protected]) and Radek Domanski (@RabbitPro | [email protected])
.