CVE-2021-32822

The npm hbs package is an Express view engine wrapper for Handlebars. Depending on usage, users of hbs may be vulnerable to a file disclosure vulnerability. There is currently no patch for this vulnerability. hbs mixes pure template data with engine configuration options through the Express render API. By overwriting internal configuration options a file disclosure vulnerability may be triggered in downstream applications. For an example PoC see the referenced GHSL-2021-020.

CVSS v3 5.3 MEDIUM
CVSS v2.0 5.0 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

5.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:N/C:P/I:N/A:N

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
https://securitylab.github.com/advisories/GHSL-2021-020-pillarjs-hbs/	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:hbs_project:hbs:-:*:*:*:*:node.js:*:*

History

No history.

Information

Published : 2021-08-16 19:15

Updated : 2022-07-02 18:23

NVD link : CVE-2021-32822

Mitre link : CVE-2021-32822

CVE.ORG link : CVE-2021-32822

JSON object : View

Products Affected

hbs_project

hbs

CWE

CWE-94

Improper Control of Generation of Code ('Code Injection')

CWE-538

Insertion of Sensitive Information into Externally-Accessible File or Directory

{"id": "CVE-2021-32822", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 5.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 1.4, "exploitabilityScore": 3.9}, {"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 4.0, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 1.4, "exploitabilityScore": 2.2}]}, "published": "2021-08-16T19:15:14.083", "references": [{"url": "https://securitylab.github.com/advisories/GHSL-2021-020-pillarjs-hbs/", "tags": ["Exploit", "Third Party Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-94"}]}, {"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-538"}]}], "descriptions": [{"lang": "en", "value": "The npm hbs package is an Express view engine wrapper for Handlebars. Depending on usage, users of hbs may be vulnerable to a file disclosure vulnerability. There is currently no patch for this vulnerability. hbs mixes pure template data with engine configuration options through the Express render API. By overwriting internal configuration options a file disclosure vulnerability may be triggered in downstream applications. For an example PoC see the referenced GHSL-2021-020."}, {"lang": "es", "value": "El paquete npm hbs es una envoltura del motor de visualizaci\u00f3n Express para Handlebars. Dependiendo del uso, los usuarios de hbs pueden ser vulnerables a una vulnerabilidad de divulgaci\u00f3n de archivos. Actualmente no se presenta ning\u00fan parche para esta vulnerabilidad. hbs mezcla datos puros de plantillas con opciones de configuraci\u00f3n del motor mediante la API de renderizado Express. Al sobrescribir las opciones de configuraci\u00f3n internas, se puede desencadenar una vulnerabilidad de divulgaci\u00f3n de archivos en las aplicaciones posteriores. Para un ejemplo de PoC vea el GHSL-2021-020 referenciado."}], "lastModified": "2022-07-02T18:23:07.957", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:hbs_project:hbs:-:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "810B6BF7-BCCD-4D7E-B19E-87CCEDC6AE83"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}