CVE-2024-8190: An OS Command Injection Vulnerability in Ivanti CSA: What You Need to Know

Overview:

  • CVE-2024-8190 is an OS command injection vulnerability found in Ivanti Cloud Services Appliance (CSA) versions 4.6 (before Patch 519) and earlier.
  • The flaw allows a remote authenticated attacker with admin-level privileges to execute arbitrary code on the affected system.

Attack Scenario:

  1. The attacker must first log into the CSA’s admin login page.
  2. While this initial login may seem like a hurdle, it’s not insurmountable in some cases.
  3. Dual-homed CSA configurations (where eth0 serves as an internal network) are less vulnerable, as recommended by Ivanti. However, not everyone follows these best practices.
  4. Users who accidentally misconfigure interfaces or have weak passwords are at risk. For instance, if an admin swaps the interfaces or configures only one interface, the CSA console could be exposed to the internet.
  5. Default login credentials (username: admin, password: admin) should be changed upon initial login. However, weak passwords and the lack of rate limiting for login attempts can still pose risks.

Mitigation Steps:

  1. Upgrade: If you’re using CSA v4.6, apply Patch 519. However, keep in mind that CSA v4.6 has reached end-of-life and won’t receive further fixes or patches.
  2. Switch to v5.0: Ivanti CSA v5.0 is not affected by CVE-2024-8190 because the vulnerable functionality was removed. Plus, it’s the only version still supported.
  3. Review for Compromise:
  • Check for modified or newly added administrative users.
  • Inspect broker logs (local to the system) for any signs of attempts.
  • Consider reviewing EDR alerts if you’ve installed EDR or other security tools on your CSA.

Impact:

  • Ivanti reports that only a limited number of customers have been exploited so far.
  • However, vigilance is crucial. If you suspect compromise, act promptly.
Remember, security is a shared responsibility, and staying informed helps protect our digital environments! 🛡️💻

Sources:

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