CVE-2021-31505
MEDIUMArlo Q Plus 1.9.0.3_278 - Unauthenticated Privilege Escalation via SSH Hard-coded Credentials
Title source: llmDescription
This vulnerability allows attackers with physical access to escalate privileges on affected installations of Arlo Q Plus 1.9.0.3_278. Authentication is not required to exploit this vulnerability. The specific flaw exists within the SSH service. The device can be booted into a special operation mode where hard-coded credentials are accepted for SSH authentication. An attacker can leverage this vulnerability to escalate privileges and execute arbitrary code in the context of root. Was ZDI-CAN-12890.
References (2)
Core 2
Core References
Third Party Advisory, VDB Entry x_refsource_misc
https://www.zerodayinitiative.com/advisories/ZDI-21-683/
Vendor Advisory x_refsource_misc
https://kb.arlo.com/000062592/Security-Advisory-for-Arlo-Q-Plus-SSH-Use-of-Hard-coded-Credentials-Allowing-Privilege-Escalation
Scores
CVSS v3
6.8
EPSS
0.0055
EPSS Percentile
41.6%
Attack Vector
PHYSICAL
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-798
Status
published
Products (1)
arlo/q_plus_firmware
1.9.0.3_278
Published
Jun 29, 2021
Tracked Since
Feb 18, 2026