CVE-2021-42559

An issue was discovered in CALDERA 2.8.1. It contains multiple startup "requirements" that execute commands when starting the server. Because these commands can be changed via the REST API, an authenticated user can insert arbitrary commands that will execute when the server is restarted.

CVSS v3 8.8 HIGH
CVSS v2.0 6.5 MEDIUM

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.5^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 8.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2021-42559-Command%20Injection%20Via%20Configurations-MITRE%20Caldera	Exploit Third Party Advisory
https://github.com/mitre/caldera/releases	Release Notes
https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2021-42559-Command%20Injection%20Via%20Configurations-MITRE%20Caldera	Exploit Third Party Advisory
https://github.com/mitre/caldera/releases	Release Notes

Configurations

Configuration 1 (hide)

cpe:2.3:a:mitre:caldera:*:*:*:*:*:*:*:*

History

21 Nov 2024, 06:27

Type	Values Removed	Values Added
References	~~() https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2021-42559-Command%20Injection%20Via%20Configurations-MITRE%20Caldera - Exploit, Third Party Advisory~~	() https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2021-42559-Command%20Injection%20Via%20Configurations-MITRE%20Caldera - Exploit, Third Party Advisory
References	~~() https://github.com/mitre/caldera/releases - Release Notes~~	() https://github.com/mitre/caldera/releases - Release Notes

Information

Published : 2022-01-12 20:15

Updated : 2024-11-21 06:27

NVD link : CVE-2021-42559

Mitre link : CVE-2021-42559

CVE.ORG link : CVE-2021-42559

JSON object : View

Products Affected

mitre

caldera

CWE

CWE-77

Improper Neutralization of Special Elements used in a Command ('Command Injection')

{"id": "CVE-2021-42559", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 6.5, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P", "authentication": "SINGLE", "integrityImpact": "PARTIAL", "accessComplexity": "LOW", "availabilityImpact": "PARTIAL", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 6.4, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 8.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 2.8}]}, "published": "2022-01-12T20:15:08.380", "references": [{"url": "https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2021-42559-Command%20Injection%20Via%20Configurations-MITRE%20Caldera", "tags": ["Exploit", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://github.com/mitre/caldera/releases", "tags": ["Release Notes"], "source": "cve@mitre.org"}, {"url": "https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2021-42559-Command%20Injection%20Via%20Configurations-MITRE%20Caldera", "tags": ["Exploit", "Third Party Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://github.com/mitre/caldera/releases", "tags": ["Release Notes"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-77"}]}], "descriptions": [{"lang": "en", "value": "An issue was discovered in CALDERA 2.8.1. It contains multiple startup \"requirements\" that execute commands when starting the server. Because these commands can be changed via the REST API, an authenticated user can insert arbitrary commands that will execute when the server is restarted."}, {"lang": "es", "value": "Se ha detectado un problema en CALDERA versi\u00f3n 2.8.1. Contiene m\u00faltiples \"requirements\" de inicio que ejecutan comandos cuando es iniciado el servidor. Debido a que estos comandos pueden ser modificados por medio de la API REST, un usuario autenticado puede insertar comandos arbitrarios que ser\u00e1n ejecutados cuando el servidor sea reiniciado"}], "lastModified": "2024-11-21T06:27:48.653", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:mitre:caldera:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E96BD638-79D7-4128-B35D-584560A5FB91", "versionEndIncluding": "2.8.1"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}