CVE-2020-8227
Nextcloud Desktop Client File Path Traversal
Description
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.
INFO
Published Date :
Aug. 21, 2020, 9:15 p.m.
Last Modified :
Sept. 27, 2022, 4:01 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
0.9
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2020-8227.
| URL | Resource |
|---|---|
| https://hackerone.com/reports/590319 | Exploit Third Party Advisory |
| https://nextcloud.com/security/advisory/?id=NC-SA-2020-032 | Broken Link Exploit Vendor Advisory |
| https://security.gentoo.org/glsa/202009-09 | Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-8227 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-8227 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Reanalysis by [email protected]
Sep. 27, 2022
Action Type Old Value New Value Changed CPE Configuration AND OR *cpe:2.3:a:nextcloud:desktop:2.6.4:*:*:*:*:*:*:* OR cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* AND OR *cpe:2.3:a:nextcloud:desktop:*:*:*:*:*:*:*:* versions up to (excluding) 2.6.5 OR cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* -
Reanalysis by [email protected]
Sep. 27, 2022
Action Type Old Value New Value Changed Reference Type https://hackerone.com/reports/590319 Third Party Advisory https://hackerone.com/reports/590319 Exploit, Third Party Advisory Changed Reference Type https://nextcloud.com/security/advisory/?id=NC-SA-2020-032 Exploit, Vendor Advisory https://nextcloud.com/security/advisory/?id=NC-SA-2020-032 Broken Link, Exploit, Vendor Advisory Changed CPE Configuration OR *cpe:2.3:a:nextcloud:nextcloud:2.6.4:*:*:*:*:linux:*:* AND OR *cpe:2.3:a:nextcloud:desktop:2.6.4:*:*:*:*:*:*:* OR cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* -
Modified Analysis by [email protected]
May. 24, 2022
Action Type Old Value New Value Changed Reference Type https://security.gentoo.org/glsa/202009-09 No Types Assigned https://security.gentoo.org/glsa/202009-09 Third Party Advisory -
CVE Modified by [email protected]
Sep. 14, 2020
Action Type Old Value New Value Added Reference https://security.gentoo.org/glsa/202009-09 [No Types Assigned] -
Initial Analysis by [email protected]
Aug. 26, 2020
Action Type Old Value New Value Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism Added CVSS V2 NIST (AV:N/AC:H/Au:S/C:C/I:C/A:C) Added CVSS V3.1 NIST AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H Changed Reference Type https://hackerone.com/reports/590319 No Types Assigned https://hackerone.com/reports/590319 Third Party Advisory Changed Reference Type https://nextcloud.com/security/advisory/?id=NC-SA-2020-032 No Types Assigned https://nextcloud.com/security/advisory/?id=NC-SA-2020-032 Exploit, Vendor Advisory Added CWE NIST CWE-22 Added CPE Configuration OR *cpe:2.3:a:nextcloud:nextcloud:2.6.4:*:*:*:*:linux:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-8227 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2020-8227
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
1.28 }} 0.20%
score
0.85656
percentile