GitHub Advisoryadvisory · crates.io

GHSA-4qg4-cvh2-crgg matrix-sdk-crypto's `UserIdentity::is_verified` not checking verification status of own user identity while performing the check

MEDIUM Published 2024-07-18 Modified 2024-07-19 Official page ↗
Aliases
CVE-2024-40648
Ecosystem
crates.io
Packages
matrix-sdk-crypto
Severity
Moderate
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
Weaknesses
CWE-287, CWE-863
Reviewed
2024-07-18

Affected packages

• crates.io matrix-sdk-crypto: < 0.7.2 → fixed in 0.7.2

Description

The `UserIdentity::is_verified()` method in the matrix-sdk-crypto crate before version 0.7.2 doesn't take into account the verification status of the user's own identity while performing the check and may as a result return a value contrary to what is implied by its name and documentation. Impact If the method is used to decide whether to perform sensitive operations towards a user identity, a malicious homeserver could manipulate the outcome in order to make the identity appear trusted. This is not a typical usage of the method, which lowers the impact. The method itself is not used inside the `matrix-sdk-crypto` crate. Patches The 0.7.2 release of the `matrix-sdk-crypto` crate includes a fix. Workarounds None.

Related

Alias · CVE (1)

  • CVE-2024-40648 matrix-rust-sdk is an implementation of a Matrix client-server library in Rust. vulnerability

Weakness · CWE (2)

  • CWE-287 Improper Authentication weakness
  • CWE-863 Incorrect Authorization weakness

References