CVE-2020-3555
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software SIP Denial of Service Vulnerability
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
A vulnerability in the SIP inspection process of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a crash and reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to a watchdog timeout and crash during the cleanup of threads that are associated with a SIP connection that is being deleted from the connection list. An attacker could exploit this vulnerability by sending a high rate of crafted SIP traffic through an affected device. A successful exploit could allow the attacker to cause a watchdog timeout and crash, resulting in a crash and reload of the affected device.
Una vulnerabilidad en el proceso de inspección SIP de Cisco Adaptive Security Appliance (ASA) Software y Cisco Firepower Threat Defense (FTD) Software, podría permitir a un atacante remoto no autenticado causar un bloqueo y la recarga de un dispositivo afectado, resultando en una condición de denegación de servicio ( DoS). La vulnerabilidad es debido a un tiempo de espera del watchdog y un bloqueo durante la limpieza de los subprocesos que están asociados con una conexión SIP que está siendo eliminada de la lista de conexiones. Un atacante podría explotar esta vulnerabilidad mediante el envío de una alta tasa de tráfico SIP diseñado por medio de un dispositivo afectado. Una explotación con éxito podría permitir a un atacante causar un tiempo de espera del watchdog y un bloqueo, resultando en un bloqueo y la recarga del dispositivo afectado
CVSS Scores
SSVC
- Decision:-
Timeline
- 2019-12-12 CVE Reserved
- 2020-10-21 CVE Published
- 2023-07-07 EPSS Updated
- 2024-09-17 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-404: Improper Resource Shutdown or Release
CAPEC
References (1)
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Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Cisco Search vendor "Cisco" | Adaptive Security Appliance Search vendor "Cisco" for product "Adaptive Security Appliance" | < 9.6.4.43 Search vendor "Cisco" for product "Adaptive Security Appliance" and version " < 9.6.4.43" | - |
Affected
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| Cisco Search vendor "Cisco" | Firepower Threat Defense Search vendor "Cisco" for product "Firepower Threat Defense" | <= 6.2.2 Search vendor "Cisco" for product "Firepower Threat Defense" and version " <= 6.2.2" | - |
Affected
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| Cisco Search vendor "Cisco" | Firepower Threat Defense Search vendor "Cisco" for product "Firepower Threat Defense" | >= 6.3.0 < 6.3.0.6 Search vendor "Cisco" for product "Firepower Threat Defense" and version " >= 6.3.0 < 6.3.0.6" | - |
Affected
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| Cisco Search vendor "Cisco" | Firepower Threat Defense Search vendor "Cisco" for product "Firepower Threat Defense" | >= 6.4.0 < 6.4.0.10 Search vendor "Cisco" for product "Firepower Threat Defense" and version " >= 6.4.0 < 6.4.0.10" | - |
Affected
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| Cisco Search vendor "Cisco" | Firepower Threat Defense Search vendor "Cisco" for product "Firepower Threat Defense" | >= 6.5.0 < 6.5.0.5 Search vendor "Cisco" for product "Firepower Threat Defense" and version " >= 6.5.0 < 6.5.0.5" | - |
Affected
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| Cisco Search vendor "Cisco" | Firepower Threat Defense Search vendor "Cisco" for product "Firepower Threat Defense" | 6.6.0 Search vendor "Cisco" for product "Firepower Threat Defense" and version "6.6.0" | - |
Affected
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| Cisco Search vendor "Cisco" | Adaptive Security Appliance Software Search vendor "Cisco" for product "Adaptive Security Appliance Software" | >= 9.7.0 < 9.8.4.24 Search vendor "Cisco" for product "Adaptive Security Appliance Software" and version " >= 9.7.0 < 9.8.4.24" | - |
Affected
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| Cisco Search vendor "Cisco" | Adaptive Security Appliance Software Search vendor "Cisco" for product "Adaptive Security Appliance Software" | >= 9.9.0 < 9.9.2.80 Search vendor "Cisco" for product "Adaptive Security Appliance Software" and version " >= 9.9.0 < 9.9.2.80" | - |
Affected
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| Cisco Search vendor "Cisco" | Adaptive Security Appliance Software Search vendor "Cisco" for product "Adaptive Security Appliance Software" | >= 9.10.0 < 9.10.1.43 Search vendor "Cisco" for product "Adaptive Security Appliance Software" and version " >= 9.10.0 < 9.10.1.43" | - |
Affected
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| Cisco Search vendor "Cisco" | Adaptive Security Appliance Software Search vendor "Cisco" for product "Adaptive Security Appliance Software" | >= 9.12.0 < 9.12.4.2 Search vendor "Cisco" for product "Adaptive Security Appliance Software" and version " >= 9.12.0 < 9.12.4.2" | - |
Affected
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| Cisco Search vendor "Cisco" | Adaptive Security Appliance Software Search vendor "Cisco" for product "Adaptive Security Appliance Software" | >= 9.13.0 < 9.13.1.13 Search vendor "Cisco" for product "Adaptive Security Appliance Software" and version " >= 9.13.0 < 9.13.1.13" | - |
Affected
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| Cisco Search vendor "Cisco" | Adaptive Security Appliance Software Search vendor "Cisco" for product "Adaptive Security Appliance Software" | >= 9.14.0 < 9.14.1.19 Search vendor "Cisco" for product "Adaptive Security Appliance Software" and version " >= 9.14.0 < 9.14.1.19" | - |
Affected
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