Full Report
Mandiant said exploits were the most common initial access vector last year, linking software defects to 1 in 3 attacks. The most commonly exploited vulnerabilities affected network edge devices. The post Attackers hit security device defects hard in 2024 appeared first on CyberScoop.
Analysis Summary
# Vulnerability: Major Exploitation Trends in Edge Device Security (2024 Mandiant Report)
## CVE Details
- CVE ID: CVE-2024-3400
- CVSS Score: 10.0 (Critical)
- CWE: N/A (Described as Command Injection relating to PAN-OS)
- CVE ID: CVE-2023-46805 and CVE-2024-21887 (Chained)
- CVSS Score: N/A (Scores not explicitly provided for the chain, but both relate to Ivanti Connect Secure/Policy Secure)
- CWE: N/A (Results in unauthenticated arbitrary command execution)
- CVE ID: CVE-2024-21893
- CVSS Score: N/A
- CWE: N/A
- CVE ID: CVE-2023-48788
- CVSS Score: N/A
- CWE: SQL Injection
## Affected Systems
- **Products:** Palo Alto Networks PAN-OS (GlobalProtect feature), Ivanti Connect Secure VPN, Ivanti Policy Secure Appliances, Fortinet FortiClient Endpoint Management Server.
- **Versions:** Not explicitly listed for all vulnerabilities; specific details should be confirmed via vendor advisories.
- **Configurations:** Affects network edge devices (VPNs, firewalls, routers) which often lack robust EDR coverage.
## Vulnerability Description
The report highlights that exploitation of edge device vulnerabilities was the most common initial infection vector in 2024. Specific critical flaws noted include:
1. **CVE-2024-3400 (Palo Alto Networks PAN-OS GlobalProtect):** A command injection vulnerability heavily exploited, including as a zero-day.
2. **CVE-2023-46805 & CVE-2024-21887 (Ivanti):** A pair of defects chained together to achieve unauthenticated arbitrary command execution on Connect Secure/Policy Secure appliances.
3. **CVE-2023-48788 (Fortinet FortiClient EMS):** An SQL injection vulnerability used by financially motivated actors for ransomware deployment.
## Exploitation
- **Status:** Exploited in the wild. Three of the four most frequently exploited vulnerabilities were initially exploited as zero-days.
- **Complexity:** Low to Medium, given the speed of post-disclosure exploitation (e.g., CVE-2024-3400 saw exploitation escalation within two weeks of disclosure).
- **Attack Vector:** Network (Initial infection vector for 1 of 3 overall attacks in 2024).
## Impact
- **Confidentiality:** High (Used for espionage and data theft by threat groups, including FIN8).
- **Integrity:** High (Used to deploy ransomware).
- **Availability:** Medium to High (Disruption due to multifaceted extortion campaigns and system compromise).
## Remediation
### Patches
Specific patch details require consulting the respective vendor advisories, but the report implicitly mandates applying known fixes for:
- **Palo Alto Networks:** Patch for CVE-2024-3400.
- **Ivanti:** Patches addressing CVE-2023-46805, CVE-2024-21887, and CVE-2024-21893.
- **Fortinet:** Patch for CVE-2023-48788.
### Workarounds
The primary workaround strategy implied is to secure these edge devices immediately, as they often lack EDR solutions once initial access is achieved. Specific documented workarounds were not detailed in this summary context, other than the need for rapid patching.
## Detection
- **Indicators of Compromise:** Presence of activity related to sophisticated threat actors (Russian, Chinese espionage groups, Ransomhub, FIN8) targeting the specific edge devices mentioned.
- **Detection Methods and Tools:** Mandiant noted significant blind spots due to deficiencies in enterprise logging and detection capabilities on these devices, suggesting organizations must ensure comprehensive logging is enabled and analyzed for unusual external commands or authentication patterns on VPN/firewall infrastructure.
## References
- Vendor Advisories for Palo Alto Networks, Ivanti, and Fortinet regarding the listed CVEs.
- Mandiant M-Trends Report (2024).
- Relevant links - defanged:
- ht tps://nvd.nist.gov/vuln/detail/cve-2024-3400
- ht tps://nvd.nist.gov/vuln/detail/cve-2023-46805
- ht tps://nvd.nist.gov/vuln/detail/cve-2024-21887
- ht tps://cyberscoop.com/ivanti-exploited-vulnerabilities-network-edge-devices-kev-list/