Insufficient Network Segregation in D-Link Routers
CVE-2019-13263

8.8HIGH

Key Information:

Vendor
D-Link
Status
Dir-825\/ac G1 Firmware
Vendor
CVE Published:
27 August 2019

Summary

D-Link DIR-825AC G1 devices exhibit a flaw that results in inadequate separation between host and guest networks. This issue arises when a DHCP Request is made, leading the router to mistakenly respond with NAK messages on both networks, utilizing the same Transaction ID. Consequently, this vulnerability allows for potential data encoding and transmission across the router, breaching the intended isolation between the two networks.

References

https://orenlab.sise.bgu.ac.il/publications/CrossRouter
x_refsource_MISC
https://www.usenix.org/system/files/woot19-paper_ovadia.pdf
x_refsource_MISC

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

.