CVE-2019-1955— Cisco Email Security Appliance Header Injection Vulnerability
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I. Basic Information for CVE-2019-1955
Vulnerability Information
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Vulnerability Title
Cisco Email Security Appliance Header Injection Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in the Sender Policy Framework (SPF) functionality of Cisco AsyncOS Software for Cisco Email Security Appliances (ESA) could allow an unauthenticated, remote attacker to bypass configured user filters on the device. The vulnerability is due to incomplete input and validation checking mechanisms for certain SPF messages that are sent to an affected device. An attacker could exploit this vulnerability by sending a customized SPF packet to an affected device. A successful exploit could allow the attacker to bypass the header filters that are configured for the affected device, which could allow malicious content to pass through the device.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
输入验证不恰当
Source: NVD (National Vulnerability Database)
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 Email Security Appliance中的AsyncOS Software存在输入验证错误漏洞，该漏洞源于对SPF消息程序缺少完整的输入和验证检查机制。远程攻击者可通过发送特制的SPF数据包利用该漏洞绕过所配置的头过滤器。
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-2019-1955
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190807-esm-injectvendor-advisoryx_refsource_CISCO
- https://nvd.nist.gov/vuln/detail/CVE-2019-1955
Same Patch Batch · Cisco · 2019-08-08 · 17 CVEs total
| CVE-2019-1973 | Cisco Enterprise NFV Infrastructure Software Cross-site Scripting Vulnerability | |
| CVE-2019-1959 | Cisco Enterprise NFV Infrastructure Software Arbitrary File Read Vulnerabilities | |
| CVE-2019-1960 | Cisco Enterprise NFV Infrastructure Software Arbitrary File Read Vulnerabilities | |
| CVE-2019-1961 | Cisco Enterprise NFV Infrastructure Software Web Portal Arbitrary File Read Vulnerability | |
| CVE-2019-1970 | Cisco Firepower Threat Defense Software File Policy Bypass Vulnerability | |
| CVE-2019-1971 | Cisco Enterprise NFV Infrastructure Software Command Injection Vulnerability | |
| CVE-2019-1972 | Cisco Enterprise NFV Infrastructure Software Privilege Escalation Vulnerability | |
| CVE-2019-1953 | Cisco Enterprise NFV Infrastructure Software Password Recovery Vulnerability | |
| CVE-2019-1954 | Cisco Webex Meetings Server Open Redirection Vulnerability | |
| CVE-2019-1956 | Cisco SPA112 2-Port Phone Adapter Stored Cross-Site Scripting Vulnerability | |
| CVE-2019-1957 | Cisco IoT Field Network Director TLS Renegotiation Denial of Service Vulnerability | |
| CVE-2019-1958 | Cisco HyperFlex Software Cross-Site Request Forgery Vulnerability | |
| CVE-2019-1949 | Cisco Firepower Management Center Persistent Cross-Site Scripting Vulnerability | |
| CVE-2019-1951 | Cisco SD-WAN Solution Packet Filtering Bypass Vulnerability | |
| CVE-2019-1952 | Cisco Enterprise NFV Infrastructure Software Path Traversal Vulnerability | |
| CVE-2019-1946 | Cisco Enterprise NFV Infrastructure Software Web-Based Management Interface Authentication |
IV. Related Vulnerabilities
Same product: Cisco Email Security Appliance (ESA)
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Cisco Email Security Appliance and Cisco Secure Email and We - CVE-2022-20653
Cisco Email Security Appliance DNS Verification Denial of Se - CVE-2021-34741
Cisco Email Security Appliance Denial of Service Vulnerabili
Same vendor: Cisco
- CVE-2026-20219
Cisco Slido 安全漏洞 - CVE-2026-20034
Cisco Unity Connection Remote Code Execution Vulnerability - CVE-2026-20035
Cisco Unity Connection Server-Side Request Forgery Vulnerabi - CVE-2026-20167
Cisco IoT Field Network Director Remote Device Denial of Ser - CVE-2026-20169
Cisco IoT Field Network Director Command Injection Vulnerabi
Same weakness: CWE-20
V. Comments for CVE-2019-1955
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