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CVE-2021-29959

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，该漏洞源于网站提示用户访问麦克风和摄像头的方式。当用户已经允许网站访问麦克风和摄像头时，禁用摄像头共享不会完全阻止网站在没有额外提示的情况下重新启用它。这只有在网站一直用麦克风录音直到重新启用摄像头的情况下才可能实现。该漏洞允许远程攻击者可利用该漏洞绕过已实现的安全限制。受影响的产品和版本如下：Firefox 89版本及之前版本。

AI Predicted 4.3 Difficulty: Moderate EPSS 0.84% · P55

Possible ATT&CK Techniques 1 AI

T1123 · Audio Capture
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I. Basic Information for CVE-2021-29959

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
When a user has already allowed a website to access microphone and camera, disabling camera sharing would not fully prevent the website from re-enabling it without an additional prompt. This was only possible if the website kept recording with the microphone until re-enabling the camera. This vulnerability affects Firefox < 89.
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，该漏洞源于网站提示用户访问麦克风和摄像头的方式。当用户已经允许网站访问麦克风和摄像头时，禁用摄像头共享不会完全阻止网站在没有额外提示的情况下重新启用它。这只有在网站一直用麦克风录音直到重新启用摄像头的情况下才可能实现。该漏洞允许远程攻击者可利用该漏洞绕过已实现的安全限制。受影响的产品和版本如下：Firefox 89版本及之前版本。
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 ~ 89 -

II. Public POCs for CVE-2021-29959

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III. Intelligence Information for CVE-2021-29959

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Vendor Advisories for CVE-2021-29959 (3)

Same Patch Batch · Mozilla · 2021-06-24 · 37 CVEs total

CVE-2021-23999 Mozilla Firefox 安全漏洞
CVE-2021-29948 Mozilla Thunderbird 竞争条件问题漏洞
CVE-2021-29947 Mozilla Firefox 缓冲区错误漏洞
CVE-2021-29946 Mozilla Firefox 输入验证错误漏洞
CVE-2021-29945 Mozilla Thunderbird 安全漏洞
CVE-2021-29944 Mozilla Firefox 和 Thunderbird 跨站脚本漏洞
CVE-2021-24002 Mozilla Thunderbird 注入漏洞
CVE-2021-24001 Mozilla Firefox 权限许可和访问控制问题漏洞
CVE-2021-24000 Mozilla Firefox 竞争条件问题漏洞
CVE-2021-29949 Mozilla Thunderbird 代码问题漏洞
CVE-2021-23998 Mozilla Firefox 数据伪造问题漏洞
CVE-2021-23997 Mozilla Firefox 资源管理错误漏洞
CVE-2021-23996 Mozilla Firefox和Mozilla Thunderbird 安全漏洞
CVE-2021-23995 Mozilla Thunderbird 资源管理错误漏洞
CVE-2021-23994 Mozilla Firefox 缓冲区错误漏洞
CVE-2021-23993 Mozilla Thunderbird 数据伪造问题漏洞
CVE-2021-23992 Mozilla Thunderbird 数据伪造问题漏洞
CVE-2021-23991 Mozilla Thunderbird 安全漏洞
CVE-2021-29958 github firefox-ios 信息泄露漏洞
CVE-2021-29967 Mozilla Firefox 缓冲区错误漏洞

Showing top 20 of 37 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Firefox
Same vendor: Mozilla

V. Comments for CVE-2021-29959

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