CVE-2021-22877
Nextcloud Credentials Exposure Vulnerability
Description
A missing user check in Nextcloud prior to 20.0.6 inadvertently populates a user's own credentials for other users external storage configuration when not already configured yet.
INFO
Published Date :
March 3, 2021, 6:15 p.m.
Last Modified :
Nov. 7, 2023, 3:30 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.2
Exploitability Score :
1.2
Affected Products
The following products are affected by CVE-2021-22877
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
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-2021-22877.
| URL | Resource |
|---|---|
| https://github.com/nextcloud/server/issues/24600 | Exploit Issue Tracking Patch Third Party Advisory |
| https://github.com/nextcloud/server/pull/25224 | Patch Third Party Advisory |
| https://hackerone.com/reports/1061591 | Issue Tracking Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L6BO6P6MP2MOWA6PZRXX32PLWPXN5O4S/ | |
| https://nextcloud.com/security/advisory/?id=NC-SA-2021-004 | Broken Link Vendor 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-2021-22877 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-22877 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 -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Added Reference HackerOne https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/L6BO6P6MP2MOWA6PZRXX32PLWPXN5O4S/ [No types assigned] Removed Reference HackerOne https://lists.fedoraproject.org/archives/list/[email protected]/message/L6BO6P6MP2MOWA6PZRXX32PLWPXN5O4S/ -
Reanalysis by [email protected]
Sep. 27, 2022
Action Type Old Value New Value Changed Reference Type https://github.com/nextcloud/server/issues/24600 Exploit, Patch, Third Party Advisory https://github.com/nextcloud/server/issues/24600 Exploit, Issue Tracking, Patch, Third Party Advisory Changed Reference Type https://nextcloud.com/security/advisory/?id=NC-SA-2021-004 Vendor Advisory https://nextcloud.com/security/advisory/?id=NC-SA-2021-004 Broken Link, Vendor Advisory Changed CPE Configuration OR *cpe:2.3:a:nextcloud:nextcloud:*:*:*:*:*:*:*:* versions up to (excluding) 20.0.6 OR *cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:* versions up to (excluding) 20.0.6 -
Reanalysis by [email protected]
Aug. 30, 2022
Action Type Old Value New Value Removed CWE NIST CWE-269 Added CWE NIST CWE-862 -
Modified Analysis by [email protected]
Jan. 01, 2022
Action Type Old Value New Value Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/L6BO6P6MP2MOWA6PZRXX32PLWPXN5O4S/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/L6BO6P6MP2MOWA6PZRXX32PLWPXN5O4S/ Mailing List, Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Jul. 09, 2021
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/L6BO6P6MP2MOWA6PZRXX32PLWPXN5O4S/ [No Types Assigned] -
Initial Analysis by [email protected]
Mar. 10, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:P/I:P/A:N) Added CVSS V3.1 NIST AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N Changed Reference Type https://github.com/nextcloud/server/issues/24600 No Types Assigned https://github.com/nextcloud/server/issues/24600 Exploit, Patch, Third Party Advisory Changed Reference Type https://github.com/nextcloud/server/pull/25224 No Types Assigned https://github.com/nextcloud/server/pull/25224 Patch, Third Party Advisory Changed Reference Type https://hackerone.com/reports/1061591 No Types Assigned https://hackerone.com/reports/1061591 Issue Tracking, Third Party Advisory Changed Reference Type https://nextcloud.com/security/advisory/?id=NC-SA-2021-004 No Types Assigned https://nextcloud.com/security/advisory/?id=NC-SA-2021-004 Vendor Advisory Added CWE NIST CWE-269 Added CPE Configuration OR *cpe:2.3:a:nextcloud:nextcloud:*:*:*:*:*:*:*:* versions up to (excluding) 20.0.6
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-22877 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-2021-22877
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.14 }} 0.03%
score
0.48737
percentile