Ameeba Security Research

Defensive CVE and exploit intelligence

Ameeba Blog Search
TRENDING · 1 WEEK
Attack Vector
Vendor
Severity

CVE-2024-56468: Potential Denial of Service in IBM InfoSphere Data Replication VSAM for z/OS Remote Source 11.4

Views: 153

Overview

The vulnerability CVE-2024-56468 is a serious cybersecurity risk that affects IBM’s InfoSphere Data Replication VSAM for z/OS Remote Source 11.4. This potential breach can allow a remote user to cause a denial of service by sending an invalid HTTP request to the log reading service.

Vulnerability Summary

CVE ID: CVE-2024-56468
Severity: High, CVSS score 7.5
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Denial of Service, potential system compromise or data leakage

Affected Products

Ameeba Chat Icon A new way to communicate

Ameeba Chat is built on encrypted identity, not personal profiles.

Message, call, share files, and coordinate with identities kept separate.

  • • Encrypted identity
  • • Ameeba Chat authenticates access
  • • Aliases and categories
  • • End-to-end encrypted chat, calls, and files
  • • Secure notes for sensitive information

Private communication, rethought.

Product | Affected Versions

IBM InfoSphere Data Replication VSAM for z/OS Remote Source | 11.4

How the Exploit Works

The exploit takes advantage of an error handling mechanism in the log reading service of the affected product. An attacker can send an invalid HTTP request to this service, which fails to handle the request correctly and crashes, resulting in a denial of service. This could potentially compromise the system or lead to data leakage.

Conceptual Example Code

Given the nature of the exploit, an attacker might use a malformed HTTP request to trigger the vulnerability. Here is a conceptual example of what such a request might look like:

GET /log/invalid_endpoint HTTP/1.1
Host: target.example.com

This request aims at a non-existing endpoint (‘/log/invalid_endpoint’) in the log reading service. The service, unable to handle this invalid request properly, could crash and cause a denial of service.

Mitigation

Users are advised to apply the vendor-supplied patch to fix this vulnerability. If the patch cannot be applied immediately, using a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can provide temporary mitigation. These systems can be configured to block malformed HTTP requests to the log reading service, preventing the exploit from triggering the vulnerability.

Want to discuss this further? Join the Ameeba Cybersecurity Group Chat.

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.

More posts

Ameeba Chat