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CVE-2023-42358: Denial of Service Vulnerability in O-RAN Software Community ric-plt-e2mgr

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Overview

The cybersecurity community has identified a critical vulnerability, CVE-2023-42358, impacting the O-RAN Software Community ric-plt-e2mgr, specifically in the G-Release environment. This flaw allows potential remote attackers to initiate a Denial of Service (DoS) attack through a specially crafted request to the E2Manager API component. This vulnerability is significant as it could lead to potential system compromise or data leakage if not addressed promptly.

Vulnerability Summary

CVE ID: CVE-2023-42358
Severity: High – CVSS 7.7
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise and data leakage

Affected Products

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Product | Affected Versions

O-RAN Software Community ric-plt-e2mgr | G-Release

How the Exploit Works

The exploit takes advantage of an issue in the E2Manager API component of the O-RAN Software Community’s ric-plt-e2mgr software. By sending a specially crafted request to this component, a remote attacker can trigger an abnormal system condition, leading to a denial of service. This situation could potentially open up opportunities for further malicious activities, including system compromise or data leakage.

Conceptual Example Code

Below is a conceptual example of how the vulnerability might be exploited:

POST /api/e2mgr/request HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "crafted_request": "malicious_payload" }

In this example, a malicious crafted request is sent to the “/api/e2mgr/request” endpoint, leading to the denial of service.

Mitigation Guidance

To mitigate the risk posed by this vulnerability, a patch provided by the vendor should be applied as soon as possible. In cases where patching is not immediately feasible, implementing a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation strategy. These tools can help detect and block the specific crafted requests associated with this exploit.

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Disclaimer:

The information and code presented in this article are provided for educational and defensive cybersecurity purposes only. Any conceptual or pseudocode examples are simplified representations intended to raise awareness and promote secure development and system configuration practices.

Do not use this information to attempt unauthorized access or exploit vulnerabilities on systems that you do not own or have explicit permission to test.

Ameeba and its authors do not endorse or condone malicious behavior and are not responsible for misuse of the content. Always follow ethical hacking guidelines, responsible disclosure practices, and local laws.

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