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CVE-2020-3585— Cisco Firepower 1000 Series Bleichenbacher Attack Vulnerability

Quick assessment

Affected
Cisco Cisco Adaptive Security Appliance (ASA) Software
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Cisco Firepower Threat Defense（FTD）和Cisco Adaptive Security Appliances Software（ASA Software）都是美国思科（Cisco）公司的产品。Cisco Firepower Threat Defense是一套提供下一代防火墙服务的统一软件。Cisco Adaptive Security Appliances Software是一套防火墙和网络安全平台。该平台提供了对数据和网络资源的高度安全的访问等功能。 Cisco Adap

CVSS 5.3 · Medium EPSS 1.25% · P68

Possible ATT&CK Techniques 1 AI

T1557 · Adversary-in-the-Middle
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I. Basic Information for CVE-2020-3585

Vulnerability Information
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Vulnerability Title
Cisco Firepower 1000 Series Bleichenbacher Attack Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the TLS handler of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 1000 Series firewalls could allow an unauthenticated, remote attacker to gain access to sensitive information. The vulnerability is due to improper implementation of countermeasures against the Bleichenbacher attack for cipher suites that rely on RSA for key exchange. An attacker could exploit this vulnerability by sending crafted TLS messages to the device, which would act as an oracle and allow the attacker to carry out a chosen-ciphertext attack. A successful exploit could allow the attacker to perform cryptanalytic operations that may allow decryption of previously captured TLS sessions to the affected device. To exploit this vulnerability, an attacker must be able to perform both of the following actions: Capture TLS traffic that is in transit between clients and the affected device Actively establish a considerable number of TLS connections to the affected device
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过差异性导致的信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco Firepower Threat Defense和Cisco Adaptive Security Appliances Software 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Firepower Threat Defense（FTD）和Cisco Adaptive Security Appliances Software（ASA Software）都是美国思科（Cisco）公司的产品。Cisco Firepower Threat Defense是一套提供下一代防火墙服务的统一软件。Cisco Adaptive Security Appliances Software是一套防火墙和网络安全平台。该平台提供了对数据和网络资源的高度安全的访问等功能。 Cisco Adap
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Cisco Cisco Adaptive Security Appliance (ASA) Software n/a -

II. Public POCs for CVE-2020-3585

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III. Intelligence Information for CVE-2020-3585

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Vendor Advisories for CVE-2020-3585 (1)

Same Patch Batch · Cisco · 2020-10-21 · 40 CVEs total

CVE-2020-3456 8.8 HIGH Cisco FXOS Software Firepower Chassis Manager Cross-Site Request Forgery Vulnerability
CVE-2020-3373 8.6 HIGH Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software IP Fragme
CVE-2020-3528 8.6 HIGH Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software OSPFv2 Li
CVE-2020-3533 8.6 HIGH Cisco Firepower Threat Defense Software SNMP Denial of Service Vulnerability
CVE-2020-3572 8.6 HIGH Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software SSL/TLS S
CVE-2020-3529 8.6 HIGH Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software SSL VPN D
CVE-2020-3514 8.2 HIGH Cisco Firepower Threat Defense Software Multi-Instance Container Escape Vulnerability
CVE-2020-3410 8.1 HIGH Cisco Firepower Management Center Software Common Access Card Authentication Bypass Vulner
CVE-2020-3555 6.8 MEDIUM Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software SIP Denia
CVE-2020-3580 6.1 MEDIUM Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Servi
CVE-2020-3582 6.1 MEDIUM Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Servi
CVE-2020-3583 6.1 MEDIUM Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Servi
CVE-2020-3599 6.1 MEDIUM Cisco Adaptive Security Appliance Software Web-Based Management Interface Reflected Cross-
CVE-2020-3581 6.1 MEDIUM Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Servi
CVE-2020-3565 5.8 MEDIUM Cisco Firepower Threat Defense Software TCP Intercept Bypass Vulnerability
CVE-2020-3578 5.3 MEDIUM Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software WebVPN Po
CVE-2020-3557 5.3 MEDIUM Cisco Firepower Management Center Software Denial of Service Vulnerability
CVE-2020-3558 4.7 MEDIUM Cisco Firepower Management Center Software Open Redirect Vulnerability
CVE-2020-3299 Multiple Cisco Products SNORT HTTP Detection Engine File Policy Bypass Vulnerability
CVE-2020-3549 Cisco Firepower Management Center Software and Firepower Threat Defense Software sftunnel

Showing top 20 of 40 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Cisco Adaptive Security Appliance (ASA) Software
Same vendor: Cisco
Same weakness: CWE-203

V. Comments for CVE-2020-3585

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