What is the CVSS score of CVE-2021-21384?

CVE-2021-21384 has a CVSS 3.1 base score of 7.8 (High). CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.6%.

Is there a public PoC exploit available for CVE-2021-21384?

Yes, a public proof-of-concept exploit is available for CVE-2021-21384. Prioritise patching immediately. EPSS: 0.6%.

Is there a patch available for CVE-2021-21384?

Yes, a patch is available for CVE-2021-21384. Update the affected software to the latest version immediately.

Shescape CVE-2021-21384

HIGH

Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') (CWE-88)

2021-03-19 security-advisories@github.com

Code Injection Shescape

7.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

7.8 HIGH

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Mar 19, 2021 - 00:15 nvd

HIGH 7.8

DescriptionNVD

shescape is a simple shell escape package for JavaScript. In shescape before version 1.1.3, anyone using _Shescape_ to defend against shell injection may still be vulnerable against shell injection if the attacker manages to insert a into the payload. For an example see the referenced GitHub Security Advisory. The problem has been patched in version 1.1.3. No further changes are required.

AnalysisAI

shescape is a simple shell escape package for JavaScript. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. Public exploit code available.

Technical ContextAI

This vulnerability is classified under CWE-88. shescape is a simple shell escape package for JavaScript. In shescape before version 1.1.3, anyone using _Shescape_ to defend against shell injection may still be vulnerable against shell injection if the attacker manages to insert a into the payload. For an example see the referenced GitHub Security Advisory. The problem has been patched in version 1.1.3. No further changes are required. Affected products include: Shescape Project Shescape. Version information: version 1.1.3.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.