CVE-2021-3310
Western Digital My Cloud SMB Symbolic Link Following Vulnerability
Description
Western Digital My Cloud OS 5 devices before 5.10.122 mishandle Symbolic Link Following on SMB and AFP shares. This can lead to code execution and information disclosure (by reading local files).
INFO
Published Date :
March 10, 2021, 5:15 a.m.
Last Modified :
Nov. 21, 2024, 6:21 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.8
Public PoC/Exploit Available at Github
CVE-2021-3310 has a 7 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
Affected Products
The following products are affected by CVE-2021-3310
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-2021-3310.
| URL | Resource |
|---|---|
| https://www.westerndigital.com/support/productsecurity/wdc-21002-my-cloud-firmware-version-5-10-122 | Vendor Advisory |
| https://www.zerodayinitiative.com/advisories/ZDI-21-277/ | Third Party Advisory |
| https://www.westerndigital.com/support/productsecurity/wdc-21002-my-cloud-firmware-version-5-10-122 | Vendor Advisory |
| https://www.zerodayinitiative.com/advisories/ZDI-21-277/ | 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).
All CVE - PoC in GitHub
poc proofofconcept tester allcve cvegithub cvenew cvepoc cveupdate
None
None
None
None
None
Western Digital MyCloud PR4100 Link Resolution Information Disclosure Vulnerability
Shell Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-3310 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-3310 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 af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://www.westerndigital.com/support/productsecurity/wdc-21002-my-cloud-firmware-version-5-10-122 Added Reference https://www.zerodayinitiative.com/advisories/ZDI-21-277/ -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Mar. 17, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://www.westerndigital.com/support/productsecurity/wdc-21002-my-cloud-firmware-version-5-10-122 No Types Assigned https://www.westerndigital.com/support/productsecurity/wdc-21002-my-cloud-firmware-version-5-10-122 Vendor Advisory Changed Reference Type https://www.zerodayinitiative.com/advisories/ZDI-21-277/ No Types Assigned https://www.zerodayinitiative.com/advisories/ZDI-21-277/ Third Party Advisory Added CWE NIST CWE-59 Added CPE Configuration AND OR *cpe:2.3:o:westerndigital:my_cloud_os:*:*:*:*:*:*:*:* versions up to (excluding) 5.10.122 OR cpe:2.3:h:westerndigital:my_cloud_dl2100:-:*:*:*:*:*:*:* cpe:2.3:h:westerndigital:my_cloud_dl4100:-:*:*:*:*:*:*:* cpe:2.3:h:westerndigital:my_cloud_ex2100:-:*:*:*:*:*:*:* cpe:2.3:h:westerndigital:my_cloud_ex2_ultra:-:*:*:*:*:*:*:* cpe:2.3:h:westerndigital:my_cloud_ex4100:-:*:*:*:*:*:*:* cpe:2.3:h:westerndigital:my_cloud_mirror_gen_2:-:*:*:*:*:*:*:* cpe:2.3:h:westerndigital:my_cloud_pr2100:-:*:*:*:*:*:*:* cpe:2.3:h:westerndigital:my_cloud_pr4100:-:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Mar. 11, 2021
Action Type Old Value New Value Added Reference https://www.zerodayinitiative.com/advisories/ZDI-21-277/ [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-3310 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-2021-3310
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.04 }} 0.00%
score
0.12654
percentile