9.8
CRITICAL
CVE-2020-27158
Western Digital My Cloud NAS Remote Code Execution Privilege Escalation
Description

Addressed remote code execution vulnerability in cgi_api.php that allowed escalation of privileges in Western Digital My Cloud NAS devices prior to 5.04.114.

INFO

Published Date :

Oct. 27, 2020, 8:15 p.m.

Last Modified :

Nov. 21, 2024, 5:20 a.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2020-27158 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.

ID Vendor Product Action
1 Westerndigital my_cloud_firmware
2 Westerndigital my_cloud_ex4100
3 Westerndigital my_cloud_pr2100
4 Westerndigital my_cloud_pr4100
5 Westerndigital my_cloud_expert_series_ex2
6 Westerndigital my_cloud_mirror_-_gen_2

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-2020-27158 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-27158 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.comparitech.com/blog/information-security/security-vulnerabilities-80000-devices-update-now/
    Added Reference https://www.westerndigital.com/support/productsecurity
    Added Reference https://www.westerndigital.com/support/productsecurity/wdc-20007-my-cloud-firmware-version-5-04-114
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Modified Analysis by [email protected]

    Dec. 01, 2021

    Action Type Old Value New Value
    Removed CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P)
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:C/I:C/A:C)
    Changed Reference Type https://www.comparitech.com/blog/information-security/security-vulnerabilities-80000-devices-update-now/ No Types Assigned https://www.comparitech.com/blog/information-security/security-vulnerabilities-80000-devices-update-now/ Exploit, Third Party Advisory
  • CWE Remap by [email protected]

    Jul. 21, 2021

    Action Type Old Value New Value
    Changed CWE CWE-269 CWE-78
  • CVE Modified by [email protected]

    Nov. 16, 2020

    Action Type Old Value New Value
    Added Reference https://www.comparitech.com/blog/information-security/security-vulnerabilities-80000-devices-update-now/ [No Types Assigned]
  • Initial Analysis by [email protected]

    Nov. 02, 2020

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://www.westerndigital.com/support/productsecurity No Types Assigned https://www.westerndigital.com/support/productsecurity Vendor Advisory
    Changed Reference Type https://www.westerndigital.com/support/productsecurity/wdc-20007-my-cloud-firmware-version-5-04-114 No Types Assigned https://www.westerndigital.com/support/productsecurity/wdc-20007-my-cloud-firmware-version-5-04-114 Vendor Advisory
    Added CWE NIST CWE-269
    Added CPE Configuration AND OR *cpe:2.3:o:westerndigital:my_cloud_firmware:*:*:*:*:*:*:*:* versions up to (excluding) 5.04.114 OR cpe:2.3:h:westerndigital:my_cloud_ex4100:-:*:*:*:*:*:*:* cpe:2.3:h:westerndigital:my_cloud_expert_series_ex2:-:*:*:*:*:*:*:* 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:-:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2020-27158 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

6.12 }} 2.09%

score

0.93458

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability