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CVE-2023-20107— Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Low-Entropy Keys 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 Adaptive Security Appliances Software（ASA Software）是美国思科（Cisco）公司的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 Adaptive Security Appliances Software 存在安全漏洞，该漏洞源于在生成加密密钥时受影响的硬件平台的 DRBG 中的熵不足。

AI Predicted 7.5 Difficulty: Hard EPSS 0.72% · P52

Possible ATT&CK Techniques 1 AI

T1557 · Adversary-in-the-Middle
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I. Basic Information for CVE-2023-20107

Vulnerability Information
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Vulnerability Title
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Low-Entropy Keys Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the deterministic random bit generator (DRBG), also known as pseudorandom number generator (PRNG), in Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software for Cisco ASA 5506-X, ASA 5508-X, and ASA 5516-X Firewalls could allow an unauthenticated, remote attacker to cause a cryptographic collision, enabling the attacker to discover the private key of an affected device. This vulnerability is due to insufficient entropy in the DRBG for the affected hardware platforms when generating cryptographic keys. An attacker could exploit this vulnerability by generating a large number of cryptographic keys on an affected device and looking for collisions with target devices. A successful exploit could allow the attacker to impersonate an affected target device or to decrypt traffic secured by an affected key that is sent to or from an affected target device.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
PRNG中信息熵不充分
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco Adaptive Security Appliances Software 安全特征问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Adaptive Security Appliances Software（ASA Software）是美国思科（Cisco）公司的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 Adaptive Security Appliances Software 存在安全漏洞，该漏洞源于在生成加密密钥时受影响的硬件平台的 DRBG 中的熵不足。
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-2023-20107

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III. Intelligence Information for CVE-2023-20107

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Vendor Advisories for CVE-2023-20107 (1)

Same Patch Batch · Cisco · 2023-03-23 · 18 CVEs total

CVE-2023-20027 8.6 HIGH Cisco IOS XE Software Virtual Fragmentation Reassembly Denial of Service Vulnerability
CVE-2023-20072 8.6 HIGH Cisco IOS XE Software Fragmented Tunnel Protocol Packet Denial of Service Vulnerability
CVE-2023-20080 8.6 HIGH Cisco IOS and IOS XE Software IPv6 DHCP (DHCPv6) Relay and Server Denial of Service Vulner
CVE-2023-20055 8.0 HIGH Cisco DNA Center Privilege Escalation Vulnerability
CVE-2023-20035 7.8 HIGH Cisco IOS XE SD-WAN Software Command Injection Vulnerability
CVE-2023-20065 7.8 HIGH Cisco IOS XE Software 安全漏洞
CVE-2023-20112 7.4 HIGH Cisco Access Point Software Association Request Denial of Service Vulnerability
CVE-2023-20067 7.4 HIGH Cisco IOS XE Software for Wireless LAN Controllers HTTP Client Profiling Denial of Service
CVE-2023-20100 6.8 MEDIUM Cisco IOS XE Software for Wireless LAN Controllers CAPWAP Join Denial of Service Vulnerabi
CVE-2023-20081 6.8 MEDIUM Cisco Adaptive Security Appliance Software, Firepower Threat Defense Software, IOS Softwar
CVE-2023-20113 6.5 MEDIUM Cisco SD-WAN vManage Software Cross-Site Request Forgery Vulnerability
CVE-2023-20066 6.5 MEDIUM Cisco IOS XE Software Web UI Path Traversal Vulnerability
CVE-2023-20056 6.5 MEDIUM Cisco Access Point Software Denial of Service Vulnerability
CVE-2023-20082 6.1 MEDIUM Cisco IOS XE Software for Cisco Catalyst 9300 Series Switches Secure Boot Bypass Vulnerabi
CVE-2023-20097 4.6 MEDIUM Cisco Access Point Software Command Injection Vulnerability
CVE-2023-20029 4.4 MEDIUM Cisco IOS XE Software Privilege Escalation Vulnerability
CVE-2023-20059 4.3 MEDIUM Cisco DNA Center Information Disclosure Vulnerability

IV. Related Vulnerabilities

Same product: Cisco Adaptive Security Appliance (ASA) Software
Same vendor: Cisco
Same weakness: CWE-332

V. Comments for CVE-2023-20107

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