CVE-2019-1010263 : Security Advisory and Response
Learn about CVE-2019-1010263 affecting Perl Crypt::JWT prior to 0.023. Attackers can bypass authentication using hmac(). Find mitigation steps and updates here.
Perl Crypt::JWT prior to version 0.023 is affected by an Incorrect Access Control vulnerability that allows attackers to bypass authentication. The issue has been fixed in versions after commit b98a59b42ded9f9e51b2560410106207c2152d6c.
Understanding CVE-2019-1010263
This CVE involves a security vulnerability in Perl Crypt::JWT that could be exploited by attackers to bypass authentication mechanisms.
What is CVE-2019-1010263?
The Incorrect Access Control vulnerability in Perl Crypt::JWT versions prior to 0.023 allows attackers to create a specially crafted token using hmac() to bypass authentication. The specific component affected is JWT.pm, particularly line 614, with the attack vector being network connectivity.
The Impact of CVE-2019-1010263
The vulnerability enables attackers to bypass authentication mechanisms, potentially leading to unauthorized access to sensitive information or systems.
Technical Details of CVE-2019-1010263
This section provides more technical insights into the vulnerability.
Vulnerability Description
The vulnerability in Perl Crypt::JWT prior to version 0.023 allows attackers to bypass authentication by crafting a token using hmac(). The issue affects the JWT.pm component, specifically at line 614.
Affected Systems and Versions
- Product: Perl Crypt::JWT
- Vendor: Perl Crypt::JWT
- Versions affected: Prior to 0.023
Exploitation Mechanism
- Attackers exploit the vulnerability by creating a specially crafted token using hmac()
- Specific component affected: JWT.pm, line 614
- Attack vector: Network connectivity
Mitigation and Prevention
To address and prevent the CVE-2019-1010263 vulnerability, consider the following steps:
Immediate Steps to Take
- Upgrade to version 0.023 or later of Perl Crypt::JWT
- Monitor network traffic for any suspicious activities
- Implement strong authentication mechanisms
Long-Term Security Practices
- Regularly update software and libraries to the latest versions
- Conduct security audits and penetration testing to identify vulnerabilities
- Educate users and developers on secure coding practices
Patching and Updates
- Apply patches provided by the vendor promptly
- Stay informed about security updates and advisories