CVE-2021-45915 : What You Need to Know
In LuxCal Web Calendar before version 5.2.0, CVE-2021-45915 allows unauthenticated attackers to manipulate a cookie value, leading to unauthorized access as any LuxCal user.
In LuxSoft LuxCal Web Calendar before 5.2.0, an unauthenticated attacker can manipulate a cookie value, potentially leading to unauthorized access.
Understanding CVE-2021-45915
In LuxCal Web Calendar versions prior to 5.2.0, a security vulnerability exists that could be exploited by attackers for unauthorized access.
What is CVE-2021-45915?
A flaw in LuxCal Web Calendar prior to version 5.2.0 allows unauthenticated attackers to tamper with a cookie value, enabling them to authenticate their session as any registered LuxCal user, including the site administrator.
The Impact of CVE-2021-45915
The vulnerability poses a significant risk as it can result in unauthorized access to privileged accounts, potentially leading to data compromise or system manipulation.
Technical Details of CVE-2021-45915
This section delves into the technical aspects of the CVE.
Vulnerability Description
Attackers without authentication can exploit a cookie manipulation flaw in LuxCal Web Calendar pre-5.2.0 to impersonate any registered user.
Affected Systems and Versions
- Product: LuxSoft LuxCal Web Calendar
- Versions affected: Before 5.2.0
Exploitation Mechanism
By tampering with a cookie value, unauthenticated attackers can fake their session as any LuxCal user, including the administrator.
Mitigation and Prevention
Protecting systems from CVE-2021-45915 is crucial to prevent unauthorized access and potential data breaches.
Immediate Steps to Take
- Upgrade LuxCal Web Calendar to version 5.2.0 or newer to patch the vulnerability.
- Monitor and review user sessions and activities for any suspicious behavior.
- Implement strong session management and authentication practices.
Long-Term Security Practices
- Conduct regular security assessments and audits to identify and address vulnerabilities.
- Train users on secure practices and awareness of potential threats.
Patching and Updates
- Stay informed about security updates and patches provided by LuxSoft.
- Apply patches promptly to ensure the system's security integrity.