CVE-2021-44981

In QuickBox Pro v2.5.8 and below, the config.php file has a variable which takes a GET parameter value and parses it into a shell_exec(''); function without properly sanitizing any shell arguments, therefore remote code execution is possible. Additionally, as the media server is running as root by default attackers can use the sudo command within this shell_exec(''); function, which allows for privilege escalation by means of RCE.

CVSS v3 8.8 HIGH
CVSS v2.0 9.0 HIGH

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

9.0^/10

CVSS v2.0 : HIGH

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

Exploitability : 8.0 / Impact : 10.0

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://github.com/QuickBox/QB/issues/202	Issue Tracking Third Party Advisory
https://websec.nl/blog/61b2b37a43a1155c848f3b08/websec%20finds%20critical%20vulnerabilities%20in%20popular%20media%20server	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:quickbox:quickbox:::::community:::*
	cpe:2.3:a:quickbox:quickbox:::::pro:::*

History

No history.

Information

Published : 2022-01-24 13:15

Updated : 2024-02-28 18:48

NVD link : CVE-2021-44981

Mitre link : CVE-2021-44981

CVE.ORG link : CVE-2021-44981

JSON object : View

Products Affected

quickbox

quickbox

CWE

CWE-78

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

{"id": "CVE-2021-44981", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 9.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C", "authentication": "SINGLE", "integrityImpact": "COMPLETE", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "COMPLETE"}, "acInsufInfo": false, "impactScore": 10.0, "baseSeverity": "HIGH", "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": "2022-01-24T13:15:08.177", "references": [{"url": "https://github.com/QuickBox/QB/issues/202", "tags": ["Issue Tracking", "Third Party Advisory"], "source": "cve@mitre.org"}, {"url": "https://websec.nl/blog/61b2b37a43a1155c848f3b08/websec%20finds%20critical%20vulnerabilities%20in%20popular%20media%20server", "tags": ["Exploit", "Third Party Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-78"}]}], "descriptions": [{"lang": "en", "value": "In QuickBox Pro v2.5.8 and below, the config.php file has a variable which takes a GET parameter value and parses it into a shell_exec(''); function without properly sanitizing any shell arguments, therefore remote code execution is possible. Additionally, as the media server is running as root by default attackers can use the sudo command within this shell_exec(''); function, which allows for privilege escalation by means of RCE."}, {"lang": "es", "value": "En QuickBox Pro versiones v2.5.8 y anteriores, el archivo config.php presenta una variable que toma un valor de par\u00e1metro GET y lo analiza en una funci\u00f3n shell_exec(''); sin sanear apropiadamente los argumentos del shell, por lo que es posible una ejecuci\u00f3n de c\u00f3digo remota. Adem\u00e1s, como el servidor de medios es ejecutado como root por defecto, los atacantes pueden usar el comando sudo dentro de esta funci\u00f3n shell_exec('');, lo que permite una escalada de privilegios mediante RCE"}], "lastModified": "2022-07-12T17:42:04.277", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:quickbox:quickbox:*:*:*:*:community:*:*:*", "vulnerable": true, "matchCriteriaId": "539517B3-AB8A-42AE-AD72-D337662A5FA1", "versionEndIncluding": "2.5.8"}, {"criteria": "cpe:2.3:a:quickbox:quickbox:*:*:*:*:pro:*:*:*", "vulnerable": true, "matchCriteriaId": "AB153559-7B02-40EA-B473-1D7E0D2EA171", "versionEndIncluding": "2.5.8"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}