What is the CVSS score of CVE-2021-28154?

CVE-2021-28154 has a CVSS 3.1 base score of 9.1 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N. EPSS exploitation probability: 1.5%.

Is there a public PoC exploit available for CVE-2021-28154?

Yes, a public proof-of-concept exploit is available for CVE-2021-28154. Prioritise patching immediately. EPSS: 1.5%.

Modeler CVE-2021-28154

CRITICAL

Missing Authorization (CWE-862)

2021-03-11 cve@mitre.org

Authentication Bypass Modeler

9.1

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.1 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

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:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Lifecycle Timeline

CVE Published

Mar 11, 2021 - 22:15 nvd

CRITICAL 9.1

DescriptionNVD

Camunda Modeler (aka camunda-modeler) through 4.6.0 allows arbitrary file access. A remote attacker may send a crafted IPC message to the exposed vulnerable ipcRenderer IPC interface, which manipulates the readFile and writeFile APIs. NOTE: the vendor states "The way we secured the app is that it does not allow any remote scripts to be opened, no unsafe scripts to be evaluated, no remote sites to be browsed.

AnalysisAI

Camunda Modeler (aka camunda-modeler) through 4.6.0 allows arbitrary file access. Rated critical severity (CVSS 9.1), 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 Missing Authorization (CWE-862), which allows attackers to access resources or perform actions without proper authorization checks. Camunda Modeler (aka camunda-modeler) through 4.6.0 allows arbitrary file access. A remote attacker may send a crafted IPC message to the exposed vulnerable ipcRenderer IPC interface, which manipulates the readFile and writeFile APIs. NOTE: the vendor states "The way we secured the app is that it does not allow any remote scripts to be opened, no unsafe scripts to be evaluated, no remote sites to be browsed. Affected products include: Camunda Modeler. Version information: through 4.6.0.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement role-based access control, validate authorization on every request server-side, apply principle of least privilege.