SB2017122508 - Information disclosure in GNU node-jose
Published: December 25, 2017 Updated: March 17, 2023
Security Bulletin ID
SB2017122508
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Information disclosure (CVE-ID: CVE-2018-0114)
CWE-ID: CWE-200 - Exposure of sensitive information to an unauthorized actor
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Clear
The vulnerability allows a remote attacker to re-sign tokens using a key that is embedded within the token.
The weakness exists in the node-jose open source library due to node-jose following the JSON Web Signature (JWS) standard for JSON Web Tokens (JWTs). A remote attacker can forge valid JWS objects by removing the original signature, add a new public key to the header and sign the object using the (attacker-owned) private key associated with the public key embedded in that JWS header.
Remediation
Install update from vendor's website.