Cisco · Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD)
CVE-2024-20481
Cisco ASA and FTD Denial-of-Service Vulnerability
ما هي
A vulnerability in the Remote Access VPN (RAVPN) service of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) of the RAVPN service.
This vulnerability is due to resource exhaustion. An attacker could exploit this vulnerability by sending a large number of VPN authentication requests to an affected device. A successful exploit could allow the attacker to exhaust resources, resulting in a DoS of the RAVPN service on the affected device. Depending on the impact of the attack, a reload of the device may be required to restore the RAVPN service. Services that are not related to VPN are not affected.
Cisco Talos discussed these attacks in the blog post Large-scale brute-force activity targeting VPNs, SSH services with commonly used login credentials.
CISA: Cisco Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD) contain a missing release of resource after effective lifetime vulnerability that could allow an unauthenticated, remote attacker to cause a denial-of-service (DoS) of the RAVPN service.
ما العمل
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
الموعد النهائي للوكالات الفدرالية الأمريكية: 14 نوفمبر 2024
ثغرات مُستغلّة أخرى من Cisco
| أُضيفت | الثغرة | المنتج | الخطورة | احتمال الهجوم |
|---|---|---|---|---|
| 24/04/2024 | ASA and FTD Denial of Service | Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD) | مرتفع 8.6 | 70% |
| 24/04/2024 | ASA and FTD Privilege Escalation | Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD) | متوسطة 6.0 | 19% |
| 15/02/2024 | ASA and FTD Information Disclosure | Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD) | مرتفع 7.5 | 72% |
| 03/11/2021 | ASA and FTD Read-Only Path Traversal | Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD) | مرتفع 7.5 | >99.9% |
| 03/11/2021 | ASA and FTD Cross-Site Scripting (XSS) | Adaptive Security Appliance (ASA) and Firepower Threat Defense (FTD) | متوسطة 6.1 | 86% |
| 14/10/2026 | Relative Path Traversal | Secure Email Gateway | حرجة 9.8 | 2.2% |
| 30/09/2026 | Hex Encoding | Catalyst SD-WAN Manager | حرجة 9.8 | 39% |
| 16/09/2026 | Incorrect Use of Privileged APIs | Identity Services Engine | حرجة 10.0 | 76% |
المصادر: Known Exploited Vulnerabilities (CISA، ملكية عامة)، وCVE records (cve.org)، وEPSS (FIRST). احتمال الهجوم هو تقدير EPSS لاحتمال أن يحاول أحد استغلال الثغرة خلال الأيام الـ30 القادمة.