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CVE-2022-20943

Quick assessment

Affected
Cisco Cisco Firepower Threat Defense 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 System等都是美国思科（Cisco）公司的产品。Cisco Firepower System是一款下一代防火墙产品（NGFW）。Cisco Umbrella是一套云安全平台。Cisco Cyber Vision Center Software是一套工业控制系统（ICS）监控解决方案。 多个Cisco产品的Snort检测引擎存在安全漏洞，该漏洞源于其Server Message Block Version 2（SMB2）processor处理SMB2流量时对系统资源的管理

CVSS 5.8 · Medium EPSS 0.95% · P60
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I. Basic Information for CVE-2022-20943

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Multiple vulnerabilities in the Server Message Block Version 2 (SMB2) processor of the Snort detection engine on multiple Cisco products could allow an unauthenticated, remote attacker to bypass the configured policies or cause a denial of service (DoS) condition on an affected device. These vulnerabilities are due to improper management of system resources when the Snort detection engine is processing SMB2 traffic. An attacker could exploit these vulnerabilities by sending a high rate of certain types of SMB2 packets through an affected device. A successful exploit could allow the attacker to trigger a reload of the Snort process, resulting in a DoS condition. Note: When the snort preserve-connection option is enabled for the Snort detection engine, a successful exploit could also allow the attacker to bypass the configured policies and deliver a malicious payload to the protected network. The snort preserve-connection setting is enabled by default. See the Details ["#details"] section of this advisory for more information. Note: Only products that have Snort 3 configured are affected. Products that are configured with Snort 2 are not affected.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
在释放前清理堆内存不恰当(堆检查)
Source: CVE Program / CVE List V5
Vulnerability Title
多款Cisco产品安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Firepower System等都是美国思科（Cisco）公司的产品。Cisco Firepower System是一款下一代防火墙产品（NGFW）。Cisco Umbrella是一套云安全平台。Cisco Cyber Vision Center Software是一套工业控制系统（ICS）监控解决方案。 多个Cisco产品的Snort检测引擎存在安全漏洞，该漏洞源于其Server Message Block Version 2（SMB2）processor处理SMB2流量时对系统资源的管理
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 Firepower Threat Defense Software 7.0.0 -
Cisco Cisco Cyber Vision 3.0.4 -

II. Public POCs for CVE-2022-20943

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III. Intelligence Information for CVE-2022-20943

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Vendor Advisories for CVE-2022-20943 (2)

Same Patch Batch · Cisco · 2022-11-10 · 33 CVEs total

CVE-2022-20946 8.6 HIGH Cisco Firepower Threat Defense 缓冲区错误漏洞
CVE-2022-20947 8.6 HIGH Cisco Adaptive Security Appliance Software和Firepower Threat Defense（FTD）Software 缓冲区错误漏洞
CVE-2022-20927 7.7 HIGH Cisco Firepower Threat Defense和Cisco Adaptive Security Appliances Software 缓冲区错误漏洞
CVE-2022-20924 7.7 HIGH Cisco Firepower Threat Defense 输入验证错误漏洞
CVE-2022-20918 7.5 HIGH Cisco Firepower Management Center 授权问题漏洞
CVE-2022-20854 7.5 HIGH Cisco Firepower Management Center和Firepower Threat Defense 资源管理错误漏洞
CVE-2022-20949 6.5 MEDIUM Cisco Firepower Threat Defense 安全漏洞
CVE-2022-20826 6.4 MEDIUM Cisco Firepower Threat Defense 安全漏洞
CVE-2022-20925 6.3 MEDIUM Cisco Firepower Management Center 操作系统命令注入漏洞
CVE-2022-20926 6.3 MEDIUM Cisco Firepower Management Center 操作系统命令注入漏洞
CVE-2022-20934 6.0 MEDIUM Cisco Firepower Threat Defense和Cisco FXOS Software 操作系统操作系统命令注入漏洞
CVE-2022-20950 5.8 MEDIUM Cisco Firepower Threat Defense 代码问题漏洞
CVE-2022-20928 5.8 MEDIUM Cisco Adaptive Security Appliance（ASA）Software和Cisco Firepower Threat Defense（FTD）Software
CVE-2022-20922 5.8 MEDIUM 多款Cisco产品安全漏洞
CVE-2022-20940 5.3 MEDIUM Cisco Firepower Threat Defense 安全漏洞
CVE-2022-20941 5.3 MEDIUM Cisco Firepower Management Center 安全特征问题漏洞
CVE-2022-20831 4.8 MEDIUM Cisco Firepower Management Center 跨站脚本漏洞
CVE-2022-20832 4.8 MEDIUM Cisco Firepower Management Center 跨站脚本漏洞
CVE-2022-20833 4.8 MEDIUM Cisco Firepower Management Center 跨站脚本漏洞
CVE-2022-20834 4.8 MEDIUM Cisco Firepower Management Center 跨站脚本漏洞

Showing top 20 of 33 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Cisco Firepower Threat Defense Software
Same vendor: Cisco
Same weakness: CWE-244

V. Comments for CVE-2022-20943

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