CVE-2024-40648
MEDIUM4.8EPSS 0.07%`UserIdentity::is_verified` not checking verification status of own user identity while performing the check
Published: 7/18/2024Modified: 7/19/2024
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.
Affected packages (2)
- crates.io/matrix-sdk-cryptofrom 0, < 0.7.2
- crates.io/matrix-sdk-crypto>= 0.0.0-0, < 0.7.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N |
| osv | CVSS 3.1 | MEDIUM4.8 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N |
References (7)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2024-40648
- PATCHhttps://crates.io/crates/matrix-sdk-crypto
- PATCHhttps://github.com/matrix-org/matrix-rust-sdk
- WEBhttps://github.com/matrix-org/matrix-rust-sdk/commit/76a7052149bb8f722df12da915b3a06d19a6695a
- WEBhttps://github.com/matrix-org/matrix-rust-sdk/releases/tag/0.7.2-crypto
- WEBhttps://github.com/matrix-org/matrix-rust-sdk/security/advisories/GHSA-4qg4-cvh2-crgg
- WEBhttps://rustsec.org/advisories/RUSTSEC-2024-0356.html