SB2024061001 - Multiple vulnerabilities in FreeFrom - the nostr client App

Description

This security bulletin contains information about 3 vulnerabilities.

1) Improper Verification of Cryptographic Signature (CVE-ID: CVE-2024-36277)

CWE-ID: CWE-347 - Improper Verification of Cryptographic Signature

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to improper verification of cryptographic signature. A remote attacker can cause the affected app cannot detect event data with invalid signatures.

2) Reliance on Obfuscation or Encryption of Security-Relevant Inputs without Integrity Checking (CVE-ID: CVE-2024-36279)

CWE-ID: CWE-649 - Reliance on Obfuscation or Encryption of Security-Relevant Inputs without Integrity Checking

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to reliance on obfuscation or encryption of security-relevant inputs without integrity checking. A remote attacker can perform a man-in-the-middle (MitM) attack and manipulate content of direct messages (DMs) between users.

3) Reusing a Nonce, Key Pair in Encryption (CVE-ID: CVE-2024-36289)

CWE-ID: CWE-323 - Reusing a Nonce, Key Pair in Encryption

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green

The vulnerability allows a remote attacker to compromise the target system. 

The vulnerability exists due to reusing a nonce, key pair in encryption. A remote attacker can perform a man-in-the-middle (MitM) attack and manipulate content of direct messages (DMs) between users.

Remediation

Install update from vendor's website.

References

• https://jvn.jp/en/jp/JVN55045256/index.html