CVE-2019-12739

CVSS V2 Medium 6.5 CVSS V3 High 8.8

Description

lib/Controller/ExtractionController.php in the Extract add-on before 1.2.0 for Nextcloud allows Remote Code Execution via shell metacharacters in a RAR filename via ajax/extractRar.php (nameOfFile and directory parameters).

Overview

CVE ID
CVE-2019-12739

Assigner
cve@mitre.org

Vulnerability Status
Modified

Published Version
2019-06-05T14:29:11

Last Modified Date
2019-06-06T23:29:00

Weakness Enumerations

CWE	URL
CWE-78	http://cwe.mitre.org/data/definitions/78.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:a:nextcloud:extract::::::nextcloud::*	1	OR		1.2.0

CVSS Version 2

Version
2.0

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

Access Vector
NETWORK

Access Compatibility
LOW

Authentication
SINGLE

Confidentiality Impact
PARTIAL

Integrity Impact
PARTIAL

Availability Impact
PARTIAL

Base Score
6.5

Severity
MEDIUM

Exploitability Score
8

Impact Score
6.4

CVSS Version 3

Version
3.0

Vector String
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK

Attack Compatibility
LOW

Privileges Required
LOW

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
HIGH

Availability Impact
HIGH

Base Score
8.8

Base Severity
HIGH

Exploitability Score
2.8

Impact Score
5.9

References

Reference URL	Reference Tags
https://hackerone.com/reports/546753	Exploit Third Party Advisory
https://www.secsignal.org/news/a-tale-of-rce-nextcloud-extract-app/

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2019-12739
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-12739

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 07:50:51				Added to TrackCVE
2022-12-03 21:37:38	2019-06-05T14:29Z	2019-06-05T14:29:11	CVE Published Date	updated
2022-12-03 21:37:38		2019-06-06T23:29:00	CVE Modified Date	updated
2022-12-03 21:37:38		Modified	Vulnerability Status	updated