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A3100R Firmware CVE-2021-46009

CRITICAL
Missing Authentication for Critical Function (CWE-306)
2022-03-30 cve@mitre.org
Authentication Bypass A3100R Firmware
9.8
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
9.8 CRITICAL
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

1
CVE Published
Mar 30, 2022 - 23:15 nvd
CRITICAL 9.8

DescriptionNVD

In Totolink A3100R V5.9c.4577, multiple pages can be read by curl or Burp Suite without authentication. Additionally, admin configurations can be set without cookies.

AnalysisAI

In Totolink A3100R V5.9c.4577, multiple pages can be read by curl or Burp Suite without authentication. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and EPSS exploitation probability 15.2%.

Technical ContextAI

This vulnerability is classified as Missing Authentication for Critical Function (CWE-306), which allows attackers to access critical functionality without authentication. In Totolink A3100R V5.9c.4577, multiple pages can be read by curl or Burp Suite without authentication. Additionally, admin configurations can be set without cookies. Affected products include: Totolink A3100R Firmware.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Require authentication for all sensitive operations, implement defense in depth.

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Same weakness CWE-306 – Missing Authentication for Critical Function

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CVE-2021-46009 vulnerability details – vuln.today
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