4.8

CVSS Score

3.1

-

CVSS Score

Basic Information

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CVE-2024-40648

CVE-2024-40648: matrix-sdk-crypto's `UserIdentity::is_verified` not checking verification status of own user identity while performing the check

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.

(GitHub Advisory)

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CVE-2024-40648

CVE-2024-40648:

4.8

CVSS Score

3.1

-

CVSS Score

Basic Information

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Technical Details

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
matrix-sdk-crypto	rust	< 0.7.2	0.7.2

Technical Details

Vulnerability Intelligence
Miggo AI

Root Cause Analysis

The vulnerability stems directly from the UserIdentity::is_verified implementation shown in the commit diff. The original code (line 230) only checked if the own identity signed the target identity (o.is_identity_signed(&self.inner)), while the patched version (lines 233-234) adds the critical own_identity.is_verified() check. This matches the advisory's description that the method didn't consider the verification status of the user's own identity, making it the clear vulnerable function. The high confidence comes from direct correlation between the vulnerability description, CWE-287/863 classifications, and the specific code changes shown in the commit.

Vulnerable functions

Only Mi**o us*rs **n s** t*is s**tion

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WAF Protection Rules

WAF Rule

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Reasoning

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4.8

-

Basic Information

Basic Information

Concerned about an active attack path?

CVE-2024-40648: matrix-sdk-crypto's `UserIdentity::is_verified` not checking verification status of own user identity while performing the check

Impact

Patches

Workarounds

CVE-2024-40648:

4.8

-

Basic Information

Basic Information

Is this CVE running in your environment?

Technical Details

Technical Details

Vulnerability IntelligenceMiggo AI

Root Cause Analysis

Vulnerable functions

Vulnerability IntelligenceMiggo AI

Unlock WAF rules for this CVE

WAF Protection Rules

WAF Rule

Reasoning

4.8

4.8

Vulnerability IntelligenceMiggo AI

Root Cause Analysis

Vulnerable functions

CVE-2024-40648: matrix-sdk-crypto's `UserIdentity::is_verified` not checking verification status of own user identity while performing the check

Impact

Patches

Workarounds

Technical Details

Basic Information

Basic Information

Vulnerability Intelligence
Miggo AI

Vulnerability Intelligence
Miggo AI

Vulnerability Intelligence
Miggo AI