What is the CVSS score of CVE-2020-29127?

CVE-2020-29127 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 4.4%.

Is there a public PoC exploit available for CVE-2020-29127?

Yes, a public proof-of-concept exploit is available for CVE-2020-29127. Prioritise patching immediately. EPSS: 4.4%.

Eternus Storage Dx200 S4 Firmware CVE-2020-29127

CRITICAL

Improper Authentication (CWE-287)

2020-11-30 cve@mitre.org

Authentication Bypass Eternus Storage Dx200 S4 Firmware

9.8

CVSS 3.1 · NVD

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

CVE Published

Nov 30, 2020 - 07:15 nvd

CRITICAL 9.8

DescriptionNVD

An issue was discovered on Fujitsu Eternus Storage DX200 S4 devices through 2020-11-25. After logging into the portal as a root user (using any web browser), the portal can be accessed with root privileges when the URI cgi-bin/csp?cspid={XXXXXXXXXX}&csppage=cgi_PgOverview&csplang=en is visited from a different web browser.

AnalysisAI

An issue was discovered on Fujitsu Eternus Storage DX200 S4 devices through 2020-11-25. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Improper Authentication (CWE-287), which allows attackers to bypass authentication mechanisms to gain unauthorized access. An issue was discovered on Fujitsu Eternus Storage DX200 S4 devices through 2020-11-25. After logging into the portal as a root user (using any web browser), the portal can be accessed with root privileges when the URI cgi-bin/csp?cspid={XXXXXXXXXX}&csppage=cgi_PgOverview&csplang=en is visited from a different web browser. Affected products include: Fujitsu Eternus Storage Dx200 S4 Firmware. Version information: through 2020.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement multi-factor authentication, enforce strong password policies, use proven authentication frameworks.