CVE-2024-39698 Vulnerability Analysis & Exploit Details

CVE-2024-39698
Vulnerability Scoring

7.5
/10
Very High Risk

Highly exploitable, CVE-2024-39698 poses a critical security risk that could lead to severe breaches.

Attack Complexity Details

  • Attack Complexity: High
    Exploits require significant effort and 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: Required
    User interaction is necessary for successful exploitation.

CVE-2024-39698 Details

Status: Analyzed

Last updated: 🕔 12 Jul 2024, 17:06 UTC
Originally published on: 🕕 09 Jul 2024, 18:15 UTC

Time between publication and last update: 2 days

CVSS Release: version 3

CVSS3 Source

nvd@nist.gov

CVSS3 Type

Primary

CVSS3 Vector

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

CVE-2024-39698 Vulnerability Summary

CVE-2024-39698: electron-updater allows for automatic updates for Electron apps. The file `packages/electron-updater/src/windowsExecutableCodeSignatureVerifier.ts` implements the signature validation routine for Electron applications on Windows. Because of the surrounding shell, a first pass by `cmd.exe` expands any environment variable found in command-line above. This creates a situation where `verifySignature()` can be tricked into validating the certificate of a different file than the one that was just downloaded. If the step is successful, the malicious update will be executed even if its signature is invalid. This attack assumes a compromised update manifest (server compromise, Man-in-the-Middle attack if fetched over HTTP, Cross-Site Scripting to point the application to a malicious updater server, etc.). The patch is available starting from 6.3.0-alpha.6.

Assessing the Risk of CVE-2024-39698

Access Complexity Graph

The exploitability of CVE-2024-39698 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-2024-39698

CVE-2024-39698 presents a challenge to exploit due to its high attack complexity, but the absence of privilege requirements still makes it a viable target for skilled attackers. A thorough security review is advised.

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-2024-39698, 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-2024-39698, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

  • Confidentiality: High
    Exploiting CVE-2024-39698 can result in unauthorized access to sensitive data, severely compromising data privacy.
  • Integrity: High
    CVE-2024-39698 could allow unauthorized modifications to data, potentially affecting system reliability and trust.
  • Availability: High
    CVE-2024-39698 can disrupt system operations, potentially causing complete denial of service (DoS).

Exploit Prediction Scoring System (EPSS)

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

EPSS Score: 0.069% (probability of exploit)

EPSS Percentile: 33.31% (lower percentile = lower relative risk)
This vulnerability is less risky than approximately 66.69% of others.

CVE-2024-39698 References

External References

CWE Common Weakness Enumeration

CWE-154

CAPEC Common Attack Pattern Enumeration and Classification

  • Command Delimiters CAPEC-15 An attack of this type exploits a programs' vulnerabilities that allows an attacker's commands to be concatenated onto a legitimate command with the intent of targeting other resources such as the file system or database. The system that uses a filter or denylist input validation, as opposed to allowlist validation is vulnerable to an attacker who predicts delimiters (or combinations of delimiters) not present in the filter or denylist. As with other injection attacks, the attacker uses the command delimiter payload as an entry point to tunnel through the application and activate additional attacks through SQL queries, shell commands, network scanning, and so on.

Vulnerable Configurations

  • cpe:2.3:a:electron:electron-builder:-:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:-:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:3.1.6:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:3.1.6:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:3.1.7:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:3.1.7:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:3.2.1:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:3.2.1:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:3.2.2:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:3.2.2:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:3.2.3:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:3.2.3:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:4.0.0:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:4.0.0:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:4.0.1:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:4.0.1:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:4.0.2:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:4.0.2:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:4.0.3:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:4.0.3:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:4.0.4:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:4.0.4:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:4.0.5:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:4.0.5:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:4.0.6:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:4.0.6:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:4.0.7:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:4.0.7:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:4.0.14:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:4.0.14:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:4.1.0:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:4.1.0:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:4.1.1:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:4.1.1:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:4.1.2:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:4.1.2:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:4.6.5:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:4.6.5:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:5.0.0:-:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:5.0.0:-:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:5.0.0:alpha0:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:5.0.0:alpha0:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:5.0.0:alpha1:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:5.0.0:alpha1:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:5.0.0:alpha2:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:5.0.0:alpha2:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:5.0.0:alpha3:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:5.0.0:alpha3:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:5.0.0:alpha4:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:5.0.0:alpha4:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:5.0.1:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:5.0.1:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:5.0.2:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:5.0.2:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:5.0.3:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:5.0.3:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:5.0.4:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:5.0.4:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:5.0.5:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:5.0.5:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:5.0.6:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:5.0.6:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:5.1.0:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:5.1.0:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:5.2.0:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:5.2.0:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:5.2.1:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:5.2.1:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:5.2.2:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:5.2.2:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:5.2.3:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:5.2.3:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:5.2.4:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:5.2.4:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:5.3.0:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:5.3.0:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:6.0.0:-:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:6.0.0:-:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:6.0.0:alpha0:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:6.0.0:alpha0:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:6.0.0:alpha1:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:6.0.0:alpha1:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:6.0.0:alpha2:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:6.0.0:alpha2:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:6.0.0:alpha3:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:6.0.0:alpha3:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:6.0.0:alpha4:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:6.0.0:alpha4:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:6.0.0:alpha5:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:6.0.0:alpha5:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:6.0.0:alpha6:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:6.0.0:alpha6:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:6.0.0:alpha7:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:6.0.0:alpha7:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:6.0.0:alpha8:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:6.0.0:alpha8:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:6.0.0:alpha9:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:6.0.0:alpha9:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:6.0.1:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:6.0.1:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:6.0.2:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:6.0.2:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:6.0.3:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:6.0.3:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:6.0.4:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:6.0.4:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:6.1.0:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:6.1.0:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:6.1.1:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:6.1.1:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:6.1.2:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:6.1.2:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:6.1.3:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:6.1.3:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:6.1.4:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:6.1.4:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:6.1.5:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:6.1.5:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:6.1.6:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:6.1.6:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:6.1.7:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:6.1.7:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:6.1.8:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:6.1.8:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:6.1.9:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:6.1.9:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:6.2.0:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:6.2.0:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:6.2.1:*:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:6.2.1:*:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:6.3.0:alpha0:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:6.3.0:alpha0:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:6.3.0:alpha1:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:6.3.0:alpha1:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:6.3.0:alpha2:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:6.3.0:alpha2:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:6.3.0:alpha3:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:6.3.0:alpha3:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:6.3.0:alpha4:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:6.3.0:alpha4:*:*:*:node.js:*:*
  • cpe:2.3:a:electron:electron-builder:6.3.0:alpha5:*:*:*:node.js:*:*
    cpe:2.3:a:electron:electron-builder:6.3.0:alpha5:*:*:*:node.js:*:*

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