CVE-2024-5056 Vulnerability Analysis & Exploit Details

CVE-2024-5056
Vulnerability Scoring

6.5
/10
High Risk

If left unpatched, CVE-2024-5056 could lead to major system disruptions or data loss.

Attack Complexity Details

  • Attack Complexity: Low
    Exploits can be performed without significant complexity or special conditions.
  • Attack Vector: Network
    Vulnerability is exploitable over a network without physical access.
  • Privileges Required: None
    No privileges are required for exploitation.
  • Scope: Unchanged
    Exploit remains within the originally vulnerable component.
  • User Interaction: None
    No user interaction is necessary for exploitation.

CVE-2024-5056 Details

Status: Analyzed

Last updated: 🕓 23 Aug 2024, 16:04 UTC
Originally published on: 🕛 12 Jun 2024, 12:15 UTC

Time between publication and last update: 72 days

CVSS Release: version 3

CVSS3 Source

nvd@nist.gov

CVSS3 Type

Primary

CVSS3 Vector

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

CVE-2024-5056 Vulnerability Summary

CVE-2024-5056: CWE-552: Files or Directories Accessible to External Parties vulnerability exists which may prevent user to update the device firmware and prevent proper behavior of the webserver when specific files or directories are removed from the filesystem.

Assessing the Risk of CVE-2024-5056

Access Complexity Graph

The exploitability of CVE-2024-5056 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-2024-5056

With low attack complexity and no required privileges, CVE-2024-5056 is an easy target for cybercriminals. Organizations should prioritize immediate mitigation measures to prevent unauthorized access and data breaches.

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-2024-5056, 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-2024-5056, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: None
    CVE-2024-5056 has no significant impact on data confidentiality.
  • Integrity: Low
    Exploiting CVE-2024-5056 may cause minor changes to data without severely impacting its accuracy.
  • Availability: Low
    CVE-2024-5056 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: 0.046% (probability of exploit)

EPSS Percentile: 19.86% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 80.14% of others.

CVE-2024-5056 References

External References

CWE Common Weakness Enumeration

CWE-552

CAPEC Common Attack Pattern Enumeration and Classification

  • Collect Data from Common Resource Locations CAPEC-150 An adversary exploits well-known locations for resources for the purposes of undermining the security of the target. In many, if not most systems, files and resources are organized in a default tree structure. This can be useful for adversaries because they often know where to look for resources or files that are necessary for attacks. Even when the precise location of a targeted resource may not be known, naming conventions may indicate a small area of the target machine's file tree where the resources are typically located. For example, configuration files are normally stored in the /etc director on Unix systems. Adversaries can take advantage of this to commit other types of attacks.
  • Probe System Files CAPEC-639 An adversary obtains unauthorized information due to improperly protected files. If an application stores sensitive information in a file that is not protected by proper access control, then an adversary can access the file and search for sensitive information.

Vulnerable Configurations

  • cpe:2.3:o:schneider-electric:modicon_m340_firmware:*:*:*:*:*:*:*:*
    cpe:2.3:o:schneider-electric:modicon_m340_firmware:*:*:*:*:*:*:*:*
  • cpe:2.3:h:schneider-electric:modicon_m340:*:*:*:*:*:*:*:*
    cpe:2.3:h:schneider-electric:modicon_m340:*:*:*:*:*:*:*:*
  • cpe:2.3:o:schneider-electric:bmxnoe0100_firmware:*:*:*:*:*:*:*:*
    cpe:2.3:o:schneider-electric:bmxnoe0100_firmware:*:*:*:*:*:*:*:*
  • cpe:2.3:h:schneider-electric:bmxnoe0100:*:*:*:*:*:*:*:*
    cpe:2.3:h:schneider-electric:bmxnoe0100:*:*:*:*:*:*:*:*
  • cpe:2.3:o:schneider-electric:bmxnoe0110_firmware:*:*:*:*:*:*:*:*
    cpe:2.3:o:schneider-electric:bmxnoe0110_firmware:*:*:*:*:*:*:*:*
  • cpe:2.3:h:schneider-electric:bmxnoe0110:*:*:*:*:*:*:*:*
    cpe:2.3:h:schneider-electric:bmxnoe0110:*:*:*:*:*:*:*:*

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