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CVE-2020-8227

Date: August 21, 2020

Missing sanitization of a server response in Nextcloud Desktop Client 2.6.4 for Linux allowed a malicious Nextcloud Server to store files outside of the dedicated sync directory.

Language: C++

Severity Score

Related Resources (7)

https://security-tracker.debian.org/tracker/CVE-2020-8227
https://security.gentoo.org/glsa/202009-09
https://nvd.nist.gov/vuln/detail/CVE-2020-8227
https://nextcloud.com/security/advisory/?id=NC-SA-2020-032
https://hackerone.com/reports/590319
https://people.canonical.com/~ubuntu-security/cve/CVE-2020-8227
https://www.mend.io/vulnerability-database/CVE-2020-8227

Severity Score

Weakness Type (CWE)

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CWE-22

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): HIGH
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): HIGH
Authentication (AU): SINGLE
Confidentiality (C): COMPLETE
Integrity (I): COMPLETE
Availability (A): COMPLETE
Additional information:

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