CVE-2020-3548— Cisco Email Security Appliance Denial Of Service Vulnerability
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I. Basic Information for CVE-2020-3548
Vulnerability Information
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Vulnerability Title
Cisco Email Security Appliance Denial Of Service Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in the Transport Layer Security (TLS) protocol implementation of Cisco AsyncOS software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to cause high CPU usage on an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to inefficient processing of incoming TLS traffic. An attacker could exploit this vulnerability by sending a series of crafted TLS packets to an affected device. A successful exploit could allow the attacker to trigger a prolonged state of high CPU utilization. The affected device would still be operative, but response time and overall performance may be degraded.There are no workarounds that address this vulnerability.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
算法复杂性
Source: NVD (National Vulnerability Database)
Vulnerability Title
Cisco AsyncOS TLS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco AsyncOS是美国思科（Cisco）公司的一款应用于思科设备的操作系统。 Cisco AsyncOS TLS存在安全漏洞，该漏洞源于TLS流量的处理效率低，攻击者可以通过向受影响的设备发送特制的TLS数据包来利用此漏洞，受影响的设备仍将可操作，但是响应时间和整体性能可能会下降。
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 Secure Email | N/A | - |
II. Public POCs for CVE-2020-3548
| # | POC Description | Source Link | Shenlong Link |
|---|
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Same Patch Batch · Cisco · 2024-11-18 · 28 CVEs total
| CVE-2020-27124 | 8.6 HIGH | Cisco Adaptive Security Appliance Software SSL/TLS Denial of Service Vulnerability |
| CVE-2020-26071 | 8.4 HIGH | Cisco SD-WAN vEdge Arbitrary File Creation Vulnerability |
| CVE-2020-26074 | 7.8 HIGH | Cisco SD-WAN vManage Privilege Escalation Vulnerability |
| CVE-2020-26073 | 7.5 HIGH | Cisco SD-WAN vManage Directory Traversal Vulnerability |
| CVE-2021-1440 | 6.8 MEDIUM | Cisco IOS XR Software BGP Resource Public Key Infrastructure Denial of Service Vulnerabili |
| CVE-2021-1232 | 6.5 MEDIUM | Cisco SD-WAN vManage Information Disclosure Vulnerability |
| CVE-2021-1379 | 6.5 MEDIUM | Cisco IP Phones Cisco Discovery Protocol and Link Layer Discovery Protocol Remote Code Exe |
| CVE-2020-3539 | 6.3 MEDIUM | Cisco Data Center Network Manager Authorization Bypass Vulnerability |
| CVE-2021-1444 | 6.1 MEDIUM | Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) |
| CVE-2020-3431 | 6.1 MEDIUM | Cisco Small Business RV Series Routers Cross-Site Scripting Vulnerability |
| CVE-2020-26067 | 5.4 MEDIUM | Cisco Webex Teams Web Interface Cross-Site Scripting Vulnerability |
| CVE-2020-26063 | 5.4 MEDIUM | Cisco Integrated Management Controller Software Authorization Bypass Vulnerability |
| CVE-2021-1234 | 5.3 MEDIUM | Cisco SD-WAN vManage Information Disclosure Vulnerabilities |
| CVE-2021-1132 | 5.3 MEDIUM | Cisco Network Services Orchestrator Path Traversal Vulnerability |
| CVE-2021-1424 | 5.3 MEDIUM | Cisco ASR 5000 Series Software (StarOS) ipsecmgr Process Denial of Service Vulnerability |
| CVE-2020-26062 | 5.3 MEDIUM | Cisco Integrated Management Controller Username Enumeration Vulnerability |
| CVE-2021-1461 | 4.9 MEDIUM | Cisco SD-WAN Software Signature Verification Bypass Vulnerability |
| CVE-2020-3538 | 4.6 MEDIUM | Cisco Data Center Network Manager Path Traversal Vulnerability |
| CVE-2021-1410 | 4.3 MEDIUM | Cisco Webex Meetings Unauthorized Distribution List Update Vulnerability |
| CVE-2021-1425 | 4.3 MEDIUM | Cisco Cisco Email Security Appliance and Content Security Management Appliance Informatio |
Showing top 20 of 28 CVEs. View all on vendor page → →
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V. Comments for CVE-2020-3548
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