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CVE-2021-29974

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 存在权限许可和访问控制问题漏洞，该漏洞源于应用程序允许覆盖 HSTS 错误，当启用网络分区时，由于增强跟踪保护设置，TLS 错误页面将允许用户覆盖域上的错误。攻击者可利用该漏洞绕过实施的安全限制。

AI Predicted 5.9 Difficulty: Moderate EPSS 0.84% · P55

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-29974

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
When network partitioning was enabled, e.g. as a result of Enhanced Tracking Protection settings, a TLS error page would allow the user to override an error on a domain which had specified HTTP Strict Transport Security (which implies that the error should not be override-able.) This issue did not affect the network connections, and they were correctly upgraded to HTTPS automatically. This vulnerability affects Firefox < 90.
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 权限许可和访问控制问题漏洞
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 存在权限许可和访问控制问题漏洞，该漏洞源于应用程序允许覆盖 HSTS 错误，当启用网络分区时，由于增强跟踪保护设置，TLS 错误页面将允许用户覆盖域上的错误。攻击者可利用该漏洞绕过实施的安全限制。
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 ~ 90 -

II. Public POCs for CVE-2021-29974

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III. Intelligence Information for CVE-2021-29974

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Vendor Advisories for CVE-2021-29974 (3)

Same Patch Batch · Mozilla · 2021-08-05 · 10 CVEs total

CVE-2021-29978 Mozilla VPN 安全特征问题漏洞
CVE-2021-29977 Mozilla Firefox 缓冲区错误漏洞
CVE-2021-29976 Mozilla Firefox 缓冲区错误漏洞
CVE-2021-29975 Mozilla Firefox 安全漏洞
CVE-2021-29973 Mozilla Firefox 安全漏洞
CVE-2021-29972 Mozilla Firefox 资源管理错误漏洞
CVE-2021-29971 Mozilla Firefox 权限许可和访问控制问题漏洞
CVE-2021-29970 Mozilla Thunderbird 资源管理错误漏洞
CVE-2021-29969 Mozilla Thunderbird 命令注入漏洞

IV. Related Vulnerabilities

Same product: Firefox
Same vendor: Mozilla

V. Comments for CVE-2021-29974

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