6.5
MEDIUM
CVE-2021-28488
Ericsson Network Manager Authorization Bypass Vulnerability
Description

Ericsson Network Manager (ENM) before 21.2 has incorrect access-control behavior (that only affects the level of access available to persons who were already granted a highly privileged role). Users in the same AMOS authorization group can retrieve managed-network data that was not set to be accessible to the entire group (i.e., was only set to be accessible to a subset of that group).

INFO

Published Date :

March 10, 2022, 5:42 p.m.

Last Modified :

July 12, 2022, 5:42 p.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2021-28488 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 Ericsson network_manager
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-2021-28488.

URL Resource
https://www.ericsson.com Vendor Advisory
https://www.ericsson.com/en/about-us/enterprise-security/psirt Vendor Advisory
https://www.gruppotim.it/it/footer/red-team.html 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-2021-28488 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-28488 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
  • CWE Remap by [email protected]

    Jul. 12, 2022

    Action Type Old Value New Value
    Changed CWE CWE-269 CWE-668
  • Modified Analysis by [email protected]

    Mar. 24, 2022

    Action Type Old Value New Value
    Removed CWE NIST CWE-732
    Added CWE NIST CWE-269
  • CVE Modified by [email protected]

    Mar. 20, 2022

    Action Type Old Value New Value
    Changed Description Ericsson Network Manager (ENM) before 21.2 has incorrect access-control behavior (that only affects the level of access available to persons who were already granted a highly privileged role). Users in the same AMOS authorization group can retrieve managed-network that was not set to be accessible to the entire group (i.e., was only set to be accessible to a subset of that group). Ericsson Network Manager (ENM) before 21.2 has incorrect access-control behavior (that only affects the level of access available to persons who were already granted a highly privileged role). Users in the same AMOS authorization group can retrieve managed-network data that was not set to be accessible to the entire group (i.e., was only set to be accessible to a subset of that group).
  • CVE Modified by [email protected]

    Mar. 13, 2022

    Action Type Old Value New Value
    Changed Description Ericsson Network Manager 20.2 has Insecure Permissions. Ericsson Network Manager (ENM) before 21.2 has incorrect access-control behavior (that only affects the level of access available to persons who were already granted a highly privileged role). Users in the same AMOS authorization group can retrieve managed-network that was not set to be accessible to the entire group (i.e., was only set to be accessible to a subset of that group).
  • Initial Analysis by [email protected]

    Mar. 12, 2022

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:P/I:N/A:N)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
    Changed Reference Type https://www.ericsson.com No Types Assigned https://www.ericsson.com Vendor Advisory
    Changed Reference Type https://www.ericsson.com/en/about-us/enterprise-security/psirt No Types Assigned https://www.ericsson.com/en/about-us/enterprise-security/psirt Vendor Advisory
    Changed Reference Type https://www.gruppotim.it/it/footer/red-team.html No Types Assigned https://www.gruppotim.it/it/footer/red-team.html Third Party Advisory
    Added CWE NIST CWE-732
    Added CPE Configuration OR *cpe:2.3:a:ericsson:network_manager:*:*:*:*:*:*:*:* versions up to (excluding) 21.2
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-2021-28488 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-2021-28488 weaknesses.

Exploit Prediction

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

0.11 }} -0.02%

score

0.42882

percentile

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