CVE-2020-3561
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software WebVPN CRLF Injection Vulnerability
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
A vulnerability in the Clientless SSL VPN (WebVPN) of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to inject arbitrary HTTP headers in the responses of the affected system. The vulnerability is due to improper input sanitization. An attacker could exploit this vulnerability by persuading a user of the interface to click a crafted link. A successful exploit could allow the attacker to conduct a CRLF injection attack, adding arbitrary HTTP headers in the responses of the system and redirecting the user to arbitrary websites.
Una vulnerabilidad en el Clientless SSL VPN (WebVPN) de Cisco Adaptive Security Appliance (ASA) Software y Cisco Firepower Threat Defense (FTD) Software, podría permitir a un atacante remoto no autenticado inyectar encabezados HTTP arbitrarios en las respuestas del sistema afectado. La vulnerabilidad es debido a un saneamiento de entrada inapropiada. Un atacante podría explotar esta vulnerabilidad al persuadir a un usuario de la interfaz para que haga clic en un enlace diseñado. Una explotación con éxito podría permitir a un atacante conducir un ataque de inyección CRLF, agregando encabezados HTTP arbitrarios en las respuestas del sistema y redireccionando al usuario a sitios web arbitrarios
CVSS Scores
SSVC
- Decision:Track
Timeline
- 2019-12-12 CVE Reserved
- 2020-10-21 CVE Published
- 2023-10-25 EPSS Updated
- 2024-11-13 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
- CWE-93: Improper Neutralization of CRLF Sequences ('CRLF Injection')
CAPEC
References (1)
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Affected Vendors, Products, and Versions
Vendor | Product | Version | Other | Status | ||||||
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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" | < 9.6.4.35 Search vendor "Cisco" for product "Adaptive Security Appliance" and version " < 9.6.4.35" | - |
Affected
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Cisco Search vendor "Cisco" | Firepower Threat Defense Search vendor "Cisco" for product "Firepower Threat Defense" | < 6.3.0.6 Search vendor "Cisco" for product "Firepower Threat Defense" and version " < 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 < 6.6.1 Search vendor "Cisco" for product "Firepower Threat Defense" and version " >= 6.6.0 < 6.6.1" | - |
Affected
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Cisco Search vendor "Cisco" | Adaptive Security Appliance Software Search vendor "Cisco" for product "Adaptive Security Appliance Software" | >= 9.8.0 < 9.8.4.20 Search vendor "Cisco" for product "Adaptive Security Appliance Software" and version " >= 9.8.0 < 9.8.4.20" | - |
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 < 9.12.3.9 Search vendor "Cisco" for product "Adaptive Security Appliance Software" and version " >= 9.12.0 < 9.12.3.9" | - |
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 < 9.13.1.10 Search vendor "Cisco" for product "Adaptive Security Appliance Software" and version " >= 9.13.0 < 9.13.1.10" | - |
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 < 9.14.1.10 Search vendor "Cisco" for product "Adaptive Security Appliance Software" and version " >= 9.14.0 < 9.14.1.10" | - |
Affected
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