CVE-2020-7255 Vulnerability Analysis & Exploit Details

CVE-2020-7255
Vulnerability Scoring

3.9
/10
Moderate Risk

Exploiting CVE-2020-7255 requires specific conditions, leading to a moderate security impact.

Attack Complexity Details

  • Attack Complexity: High
    Exploits require significant effort and special conditions.
  • Attack Vector: Local
    Vulnerability requires local system access.
  • Privileges Required: Low
    Some privileges are necessary to exploit the vulnerability.
  • Scope: Changed
    Successful exploitation can impact components beyond the vulnerable component.
  • User Interaction: Required
    User interaction is necessary for successful exploitation.

CVE-2020-7255 Details

Status: Modified

Last updated: 🕠 21 Nov 2024, 05:36 UTC
Originally published on: 🕐 15 Apr 2020, 13:15 UTC

Time between publication and last update: 1680 days

CVSS Release: version 3

CVSS3 Source

trellixpsirt@trellix.com

CVSS3 Type

Secondary

CVSS3 Vector

CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:N/I:L/A:L

CVE-2020-7255 Vulnerability Summary

CVE-2020-7255: Privilege escalation vulnerability in the administrative user interface in McAfee Endpoint Security (ENS) for Windows prior to 10.7.0 February 2020 Update allows local users to gain elevated privileges via ENS not checking user permissions when editing configuration in the ENS client interface. Administrators can lock the ENS client interface through ePO to prevent users being able to edit the configuration.

Assessing the Risk of CVE-2020-7255

Access Complexity Graph

The exploitability of CVE-2020-7255 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2020-7255

This vulnerability, CVE-2020-7255, requires a high level of attack complexity and low privileges, making it difficult but not impossible to exploit. Organizations should ensure robust security configurations to mitigate risks.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2020-7255, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2020-7255, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: None
    CVE-2020-7255 has no significant impact on data confidentiality.
  • Integrity: Low
    Exploiting CVE-2020-7255 may cause minor changes to data without severely impacting its accuracy.
  • Availability: Low
    CVE-2020-7255 may slightly degrade system performance without fully affecting service availability.

Exploit Prediction Scoring System (EPSS)

The EPSS score estimates the probability that this vulnerability will be exploited in the near future.

EPSS Score: 0.042% (probability of exploit)

EPSS Percentile: 5.07% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 94.93% of others.

CVE-2020-7255 References

External References

CWE Common Weakness Enumeration

CWE-269

CAPEC Common Attack Pattern Enumeration and Classification

  • Privilege Abuse CAPEC-122 An adversary is able to exploit features of the target that should be reserved for privileged users or administrators but are exposed to use by lower or non-privileged accounts. Access to sensitive information and functionality must be controlled to ensure that only authorized users are able to access these resources.
  • Privilege Escalation CAPEC-233 An adversary exploits a weakness enabling them to elevate their privilege and perform an action that they are not supposed to be authorized to perform.
  • Restful Privilege Elevation CAPEC-58 An adversary identifies a Rest HTTP (Get, Put, Delete) style permission method allowing them to perform various malicious actions upon server data due to lack of access control mechanisms implemented within the application service accepting HTTP messages.

Vulnerable Configurations

  • cpe:2.3:a:mcafee:endpoint_security:10.5.0:*:*:*:*:windows:*:*
    cpe:2.3:a:mcafee:endpoint_security:10.5.0:*:*:*:*:windows:*:*
  • cpe:2.3:a:mcafee:endpoint_security:10.5.1:*:*:*:*:windows:*:*
    cpe:2.3:a:mcafee:endpoint_security:10.5.1:*:*:*:*:windows:*:*
  • cpe:2.3:a:mcafee:endpoint_security:10.5.2:*:*:*:*:windows:*:*
    cpe:2.3:a:mcafee:endpoint_security:10.5.2:*:*:*:*:windows:*:*
  • cpe:2.3:a:mcafee:endpoint_security:10.5.3:*:*:*:*:windows:*:*
    cpe:2.3:a:mcafee:endpoint_security:10.5.3:*:*:*:*:windows:*:*
  • cpe:2.3:a:mcafee:endpoint_security:10.5.4:*:*:*:*:windows:*:*
    cpe:2.3:a:mcafee:endpoint_security:10.5.4:*:*:*:*:windows:*:*
  • cpe:2.3:a:mcafee:endpoint_security:10.5.5:*:*:*:*:windows:*:*
    cpe:2.3:a:mcafee:endpoint_security:10.5.5:*:*:*:*:windows:*:*
  • cpe:2.3:a:mcafee:endpoint_security:10.6.0:*:*:*:*:windows:*:*
    cpe:2.3:a:mcafee:endpoint_security:10.6.0:*:*:*:*:windows:*:*

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