bitcoinjs tiny-secp256k1 up to 1.1.6 insufficiently protected credentials

Summaryinfo

A vulnerability described as critical has been identified in bitcoinjs tiny-secp256k1 up to 1.1.6. Affected by this issue is some unknown functionality. Such manipulation leads to insufficiently protected credentials. This vulnerability is referenced as CVE-2024-49364. It is possible to launch the attack remotely. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, has been found in bitcoinjs tiny-secp256k1 up to 1.1.6. Affected by this issue is an unknown code block. The manipulation with an unknown input leads to a insufficiently protected credentials vulnerability. Using CWE to declare the problem leads to CWE-522. The product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval. Impacted is confidentiality, integrity, and availability. CVE summarizes:

tiny-secp256k1 is a tiny secp256k1 native/JS wrapper. Prior to version 1.1.7, a private key can be extracted on signing a malicious JSON-stringifiable object, when global Buffer is the buffer package. This affects only environments where require('buffer') is the NPM buffer package. The Buffer.isBuffer check can be bypassed, resulting in k reuse for different messages, leading to private key extraction over a single invalid message (and a second one for which any message/signature could be taken, e.g. previously known valid one). This issue has been patched in version 1.1.7.

The advisory is shared for download at github.com. This vulnerability is handled as CVE-2024-49364 since 10/14/2024. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1552.

Upgrading to version 1.1.7 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Vendor

• bitcoinjs

Name

• tiny-secp256k1

Version

• 1.1.0
• 1.1.1
• 1.1.2
• 1.1.3
• 1.1.4
• 1.1.5
• 1.1.6

Website

• Product: https://github.com/bitcoinjs/tiny-secp256k1/

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