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CVE-2020-3368— Cisco Email Security Appliance URL Filtering 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的反垃圾邮件保护机制存在输入验证错误漏洞。远程攻击者可通过构建URL利用该漏洞将恶意的URL发送到设备上。

AI Predicted 8.1 Difficulty: Moderate EPSS 1.38% · P71

Possible ATT&CK Techniques 1 AI

T1565.002 · Transmitted Data Manipulation
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I. Basic Information for CVE-2020-3368

Vulnerability Information
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Vulnerability Title
Cisco Email Security Appliance URL Filtering Bypass Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the antispam protection mechanisms of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass the URL reputation filters on an affected device. The vulnerability is due to insufficient input validation of URLs. An attacker could exploit this vulnerability by crafting the URL in a particular way. A successful exploit could allow the attacker to bypass the URL reputation filters that are configured for the affected device, which could allow malicious URLs 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 AsyncOS Software 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的反垃圾邮件保护机制存在输入验证错误漏洞。远程攻击者可通过构建URL利用该漏洞将恶意的URL发送到设备上。
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) n/a -

II. Public POCs for CVE-2020-3368

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III. Intelligence Information for CVE-2020-3368

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Vendor Advisories for CVE-2020-3368 (1)

Same Patch Batch · Cisco · 2020-06-18 · 38 CVEs total

CVE-2020-3361 8.1 HIGH Cisco Webex Meetings and Cisco Webex Meetings Server Token Handling Unauthorized Access Vu
CVE-2020-3350 5.5 MEDIUM Cisco AMP for Endpoints and ClamAV Privilege Escalation Vulnerability
CVE-2020-3362 4.7 MEDIUM Cisco Network Services Orchestrator Information Disclosure Vulnerability
CVE-2020-3292 Cisco Small Business RV Series Routers Stack Overflow Arbitrary Code Execution Vulnerabili
CVE-2020-3337 Cisco Umbrella Open Redirect Vulnerability
CVE-2020-3336 Cisco TelePresence Collaboration Endpoint and RoomOS Software Command Injection Vulnerabil
CVE-2020-3296 Cisco Small Business RV Series Routers Stack Overflow Arbitrary Code Execution Vulnerabili
CVE-2020-3295 Cisco Small Business RV Series Routers Stack Overflow Arbitrary Code Execution Vulnerabili
CVE-2020-3294 Cisco Small Business RV Series Routers Stack Overflow Arbitrary Code Execution Vulnerabili
CVE-2020-3293 Cisco Small Business RV Series Routers Stack Overflow Arbitrary Code Execution Vulnerabili
CVE-2020-3277 Cisco Small Business RV Series Routers Command Injection Vulnerabilities
CVE-2020-3291 Cisco Small Business RV Series Routers Stack Overflow Arbitrary Code Execution Vulnerabili
CVE-2020-3290 Cisco Small Business RV Series Routers Stack Overflow Arbitrary Code Execution Vulnerabili
CVE-2020-3289 Cisco Small Business RV Series Routers Stack Overflow Arbitrary Code Execution Vulnerabili
CVE-2020-3288 Cisco Small Business RV Series Routers Stack Overflow Arbitrary Code Execution Vulnerabili
CVE-2020-3287 Cisco Small Business RV Series Routers Stack Overflow Arbitrary Code Execution Vulnerabili
CVE-2020-3286 Cisco Small Business RV Series Routers Stack Overflow Arbitrary Code Execution Vulnerabili
CVE-2020-3279 Cisco Small Business RV Series Routers Command Injection Vulnerabilities
CVE-2020-3278 Cisco Small Business RV Series Routers Command Injection Vulnerabilities
CVE-2020-3276 Cisco Small Business RV Series Routers Command Injection Vulnerabilities

Showing top 20 of 38 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-2020-3368

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