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CVE-2019-12706— Cisco Email Security Appliance Filter Bypass Vulnerability

Quick assessment

Affected
Cisco Cisco Email Security Appliance (ESA)
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 Email Security Appliance（ESA）是美国思科（Cisco）公司的一个电子邮件安全设备。AsyncOS Software是运行在其中的一套操作系统。 Cisco ESA中的AsyncOS Software 13.5之前版本的Sender Policy Framework功能存在输入验证错误漏洞，该漏洞源于程序没有充分验证进入的SPF消息。远程攻击者可通过发送自定义的SPF数据包利用该漏洞绕过所配置的用户过滤器，发送恶意的内容。

AI Predicted 7.5 Difficulty: Moderate EPSS 1.31% · P69
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I. Basic Information for CVE-2019-12706

Vulnerability Information
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Vulnerability Title
Cisco Email Security Appliance Filter Bypass Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the Sender Policy Framework (SPF) functionality of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass the configured user filters on an affected device. The vulnerability exists because the affected software insufficiently validates certain incoming SPF messages. An attacker could exploit this vulnerability by sending a custom SPF packet to an affected device. A successful exploit could allow the attacker to bypass the configured header filters, which could allow malicious content to pass through the device.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco Email Security Appliance 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Email Security Appliance（ESA）是美国思科（Cisco）公司的一个电子邮件安全设备。AsyncOS Software是运行在其中的一套操作系统。 Cisco ESA中的AsyncOS Software 13.5之前版本的Sender Policy Framework功能存在输入验证错误漏洞，该漏洞源于程序没有充分验证进入的SPF消息。远程攻击者可通过发送自定义的SPF数据包利用该漏洞绕过所配置的用户过滤器，发送恶意的内容。
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 Email Security Appliance (ESA) unspecified ~ n/a -

II. Public POCs for CVE-2019-12706

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III. Intelligence Information for CVE-2019-12706

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Vendor Advisories for CVE-2019-12706 (1)

Same Patch Batch · Cisco · 2019-10-02 · 43 CVEs total

CVE-2019-12679 Cisco Firepower Management Center SQL Injection Vulnerabilities
CVE-2019-12693 Cisco Adaptive Security Appliance Software Secure Copy Denial of Service Vulnerability
CVE-2019-12677 Cisco Adaptive Security Appliance Software SSL VPN Denial of Service Vulnerability
CVE-2019-12681 Cisco Firepower Management Center SQL Injection Vulnerabilities
CVE-2019-12678 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software SIP Inspe
CVE-2019-12674 Cisco Firepower Threat Defense Software Multi-instance Container Escape Vulnerabilities
CVE-2019-12673 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software FTP Inspe
CVE-2019-12631 Cisco Identity Services Engine Cross-Site Scripting Vulnerability
CVE-2019-12630 Cisco Security Manager Java Deserialization Vulnerability
CVE-2019-12676 Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software OSPF LSA
CVE-2019-12680 Cisco Firepower Management Center SQL Injection Vulnerabilities
CVE-2019-12683 Cisco Firepower Management Center SQL Injection Vulnerabilities
CVE-2019-12682 Cisco Firepower Management Center SQL Injection Vulnerabilities
CVE-2019-12685 Cisco Firepower Management Center SQL Injection Vulnerabilities
CVE-2019-12684 Cisco Firepower Management Center SQL Injection Vulnerabilities
CVE-2019-12687 Cisco Firepower Management Center Remote Code Execution Vulnerability
CVE-2019-12686 Cisco Firepower Management Center SQL Injection Vulnerabilities
CVE-2019-12690 Cisco Firepower Management Center Command Injection Vulnerability
CVE-2019-12689 Cisco Firepower Management Center Remote Code Execution Vulnerability
CVE-2019-12688 Cisco Firepower Management Center Remote Code Execution Vulnerability

Showing top 20 of 43 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Cisco Email Security Appliance (ESA)
Same vendor: Cisco
Same weakness: CWE-20

V. Comments for CVE-2019-12706

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