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

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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.