CVEvulnerability
CVE-2021-31505
6.8 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2021-06-29
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.8 MEDIUM — CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 3.0 ([email protected])
- 6.8 MEDIUM — CVSS:3.0/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 7.2 HIGH — AV:L/AC:L/Au:N/C:C/I:C/A:C
- Weaknesses
- CWE-798
Description
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.
Affected configurations
• arlo q plus firmware 1.9.0.3 278
Related
Weakness · CWE (1)
- CWE-798 Use of Hard-coded Credentials weakness
References
- https://kb.arlo.com/000062592/Security-Advisory-for-Arlo-Q-Plus-SSH-Use-of-Hard-coded-Credentials-Allowing-Privilege-Escalation Vendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-21-683/ Third Party Advisory, VDB Entry
- https://kb.arlo.com/000062592/Security-Advisory-for-Arlo-Q-Plus-SSH-Use-of-Hard-coded-Credentials-Allowing-Privilege-Escalation Vendor Advisory
- https://www.zerodayinitiative.com/advisories/ZDI-21-683/ Third Party Advisory, VDB Entry