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CVE-2019-9803

Quick assessment

Affected
Mozilla Firefox
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.

Mozilla Firefox是美国Mozilla基金会的一款开源Web浏览器。 Mozilla Firefox 66之前版本中存在安全漏洞，该漏洞源于程序没有正确地对同源导航执行Upgrade-Insecure-Requests。攻击者可利用该漏洞实施中间人攻击。

AI Predicted 5.9 Difficulty: Moderate EPSS 0.56% · P44

Possible ATT&CK Techniques 1 AI

T1071 · Application Layer Protocol
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I. Basic Information for CVE-2019-9803

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
The Upgrade-Insecure-Requests (UIR) specification states that if UIR is enabled through Content Security Policy (CSP), navigation to a same-origin URL must be upgraded to HTTPS. Firefox will incorrectly navigate to an HTTP URL rather than perform the security upgrade requested by the CSP in some circumstances, allowing for potential man-in-the-middle attacks on the linked resources. This vulnerability affects Firefox < 66.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Mozilla Firefox 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mozilla Firefox是美国Mozilla基金会的一款开源Web浏览器。 Mozilla Firefox 66之前版本中存在安全漏洞，该漏洞源于程序没有正确地对同源导航执行Upgrade-Insecure-Requests。攻击者可利用该漏洞实施中间人攻击。
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
Mozilla Firefox unspecified ~ 66 -

II. Public POCs for CVE-2019-9803

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III. Intelligence Information for CVE-2019-9803

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Vendor Advisories for CVE-2019-9803 (3)

Security Blog Posts for CVE-2019-9803 (1)

Same Patch Batch · Mozilla · 2019-04-26 · 28 CVEs total

CVE-2019-9795 Mozilla Firefox和Mozilla Firefox ESR 代码问题漏洞
CVE-2019-9813 Mozilla Firefox 代码问题漏洞
CVE-2019-9810 Mozilla Firefox 缓冲区错误漏洞
CVE-2019-9809 Mozilla Firefox 资源管理错误漏洞
CVE-2019-9808 Mozilla Firefox 访问控制错误漏洞
CVE-2019-9807 Mozilla Firefox 输入验证错误漏洞
CVE-2019-9805 Mozilla Firefox 缓冲区错误漏洞
CVE-2019-9804 Mozilla Firefox 操作系统命令注入漏洞
CVE-2019-9802 Mozilla Firefox 信息泄露漏洞
CVE-2019-9801 Mozilla Firefox和Mozilla Firefox ESR 输入验证错误漏洞
CVE-2019-9799 Mozilla Firefox 缓冲区错误漏洞
CVE-2019-9798 Mozilla Firefox 代码问题漏洞
CVE-2019-9797 Mozilla Firefox 访问控制错误漏洞
CVE-2019-9796 Mozilla Firefox和Mozilla Firefox ESR 安全漏洞
CVE-2019-9806 Mozilla Firefox 资源管理错误漏洞
CVE-2019-9794 Mozilla Firefox和Mozilla Firefox ESR 输入验证错误漏洞
CVE-2019-9793 Mozilla Firefox和Firefox ESR 安全漏洞
CVE-2019-9792 Mozilla Firefox和Firefox ESR 缓冲区错误漏洞
CVE-2019-9791 Mozilla Firefox和Firefox ESR 输入验证错误漏洞
CVE-2019-9790 Mozilla Firefox和Firefox ESR 安全漏洞

Showing top 20 of 28 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Firefox
Same vendor: Mozilla

V. Comments for CVE-2019-9803

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