CVE Vulnerability

CVE-2021-21387

Wrongthink peer-to-peer, end-to-end encrypted messenger with PeerJS and Axolotl ratchet. In wrongthink from version 2.0.0 and before 2.3.0 there was a set of vulnerabilities causing inadequate encryption strength. Part of the secret identity key was disclosed by the fingerprint used for connection. Additionally, the safety number was improperly calculated. It was computed using part of one of the public identity keys instead of being derived from both public identity keys. This caused issues in computing safety numbers which would potentially be exploitable in the real world. Additionally there was inadequate encryption strength due to use of 1024-bit DSA keys. These issues are all fixed in version 2.3.0.

5 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 10 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

Scope

7.5 /10

CVSS v3.0 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://github.com/parabirb/wrongthink/security/advisories/GHSA-5jxh-6378-rg7v Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:wrongthink:wrongthink:*:*:*:*:*:*:*:*
Information

Published : 2021-03-19 04:15

Updated : 2021-03-25 07:35

NVD link : CVE-2021-21387

Mitre link : CVE-2021-21387

Products Affected
No products.
CWE
CWE-319

Cleartext Transmission of Sensitive Information

CWE-326

Inadequate Encryption Strength

CWE-358