Downgrade Vulnerability in Z-Wave Secure Protocols by Silicon Labs
CVE-2018-25029

8.1HIGH

Key Information:

Vendor

Silicon Labs

Status
Z-wave
Vendor
CVE Published:
4 February 2022

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2018-25029?

The Z-Wave specification permits a downgrade from the more secure S2 security to the less secure S0 or other weak protocols. This design flaw can be exploited by an attacker within radio range during the pairing process, potentially allowing the attacker to downgrade the device's security. Once this occurs, the attacker may leverage another vulnerability to intercept communications and impersonate legitimate devices, thereby jeopardizing the integrity and security of the smart home ecosystem.

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Affected Version(s)

Z-Wave S2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2018-25029 - Proof of Concept

References

https://www.pentestpartners.com/security-blog/z-shave-exp...
x_refsource_MISC
https://community.silabs.com/s/share/a5U1M000000knqNUAQ/u...
x_refsource_CONFIRM

CVSS V3.1

Score:
8.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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