T08 · Insecure Dependencies
Warning
- Location
encryption.md:12- Finding
Unpinned npm Cryptography Dependencies
- Content
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Vulnerability Details
File Location:
encryption.md, lines 12–15
Vulnerability Type: Unpinned third-party dependencies
Risk Level: MediumCode Snippet:
bash ### Dependencies ```bash npm install @noble/curves @noble/ciphers @noble/hashestext ### Technical Analysis The installation command does not specify package versions or require a committed lockfile. Consequently, users may install whatever versions are currently selected by the npm registry rather than versions reviewed with this skill. These packages implement key exchange, encryption, hashing, and randomness. A compromised or unexpectedly incompatible release would execute in the consuming application's context and could undermine all cryptographic assurances. For example, malicious dependency code could capture plaintext, private keys, shared secrets, or group keys before encryption and transmit them using the application's network privileges. The package names appear internally consistent with the documented implementation, and the audit found no evidence that they are typosquatted packages. The risk arises from unconstrained supply-chain resolution, not from a confirmed malicious package. The Base64 operations elsewhere in `encryption.md`, including encoding the group key before encrypting it for a member, are necessary serialization steps in the documented end-to-end encryption protocol. They do not independently output data to stdout or transmit it to an unauthorized destination and therefore were not classified as covert exfiltration. ### Attack Path 1. An attacker compromises a listed npm package, its maintainer account, or a newly resolved transitive dependency. 2. The attacker publishes a malicious version that satisfies the unconstrained installation command. 3. A user follows the skill documentation and runs the command. 4. npm resolves and installs the attacker-controlled release. 5. The malicious package executes during ...[truncated 730 chars]- Remediation
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Remediation Suggestions
- Pin each direct dependency to an exact reviewed version rather than using unconstrained package names.
- Supply and commit an integrity-protected
package-lock.json. - Prefer
npm cifor reproducible installation and configure it to fail when the lockfile and manifest disagree. - Review and pin transitive dependencies through the lockfile.
- Disable installation scripts where compatible, such as with
npm ci --ignore-scripts. - Run dependency auditing and provenance verification in CI.
- Upgrade cryptographic packages only through a reviewed process that includes protocol interoperability and security tests.
- Run the messaging application under a dedicated, minimally privileged account with restricted filesystem and outbound-network access.