CVE-2021-41094 Mandatory encryption at rest can be bypassed (UI) in Wire app

2021-10-0418:20:13

CWE-668

GitHub_M

www.cve.org

4.2 Medium

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:H/I:N/A:N

5 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

36.4%

JSON

Wire is an open source secure messenger. Users of Wire by Bund may bypass the mandatory encryption at rest feature by simply disabling their device passcode. Upon launching, the app will attempt to enable encryption at rest by generating encryption keys via the Secure Enclave, however it will fail silently if no device passcode is set. The user has no indication that encryption at rest is not active since the feature is hidden to them. This issue has been resolved in version 3.70

CNA Affected

[
  {
    "product": "wire-ios",
    "vendor": "wireapp",
    "versions": [
      {
        "status": "affected",
        "version": ">= 3.68, < 3.70"
      }
    ]
  }
]