Vulnerability in Arlo Q Plus
CVE-2021-31505
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.006 (43.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 43.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
- Arlo Q Plus — versions 1.9.0.3_278
- Arlo Q Plus
- Arlo Q Plus Firmware — versions 1.9.0.3_278
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.zerodayinitiative.com/advisories/ZDI-21-683/ (VDB Entry, Third Party Advisory)
- kb.arlo.com/000062592/Security-Advisory-for-Arlo-Q-Plus-SSH-Use-of-Hard-coded-C… (Vendor Advisory)
Frequently asked questions
- What is CVE-2021-31505?
- CVE-2021-31505 is a medium-severity vulnerability in Arlo Q Plus, classified under Use of Hard-coded Credentials. CVSS score: 6.8/10. Published 2021-06-29.
- How severe is CVE-2021-31505?
- Medium severity. CVSS v3 base score is 6.8 out of 10.
- Is CVE-2021-31505 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.