CVE-2021-21400— Entering code in App Lock modal sends input to conversation
Quick assessment
Affected
wireapp wire-webapp
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.
Wire是个人开发者的一款聊天软件。该软件支持 Web、WindowsiOS、Android、OS X 平台，有群组功能，可以语音通话，发送照片以及其独创性的打招呼方式 PING。 Wire 存在安全漏洞，该漏洞源于当用户不主动关注输入字段时，输入的密码将被发送到最近使用的聊天中。
Possible ATT&CK Techniques 1 AI
T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2021-21400
Vulnerability Information
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Vulnerability Title
Entering code in App Lock modal sends input to conversation
Source: CVE Program / CVE List V5
Vulnerability Description
wire-webapp is an open-source front end for Wire, a secure collaboration platform. In wire-webapp before version 2021-03-15-production.0, when being prompted to enter the app-lock passphrase, the typed passphrase will be sent into the most recently used chat when the user does not actively give focus to the input field. Input element focus is enforced programatically in version 2021-03-15-production.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Wire 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Wire是个人开发者的一款聊天软件。该软件支持 Web、WindowsiOS、Android、OS X 平台，有群组功能，可以语音通话，发送照片以及其独创性的打招呼方式 PING。 Wire 存在安全漏洞，该漏洞源于当用户不主动关注输入字段时，输入的密码将被发送到最近使用的聊天中。
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 |
|---|---|---|---|---|
| wireapp | wire-webapp | < 2021-03-15-production.0 | - |
|
II. Public POCs for CVE-2021-21400
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2021-21400 (2)
-
https://github.com/wireapp/wire-webapp/pull/10704 x_refsource_MISC
Vendor Advisories for CVE-2021-21400 (1)
-
https://github.com/wireapp/wire-webapp/security/advisories/GHSA-cxwr-f2j3-q8hp x_refsource_CONFIRM
Other References for CVE-2021-21400 (1)
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V. Comments for CVE-2021-21400
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