Description
casgate is an Open Source Identity and Access Management system. In affected versions `casgate` allows remote unauthenticated attacker to obtain sensitive information via GET request to an API endpoint. This issue has been addressed in PR #201 which is pending merge. An attacker could use `id` parameter of GET requests with value `anonymous/ anonymous` to bypass authorization on certain API endpoints. Successful exploitation of the vulnerability could lead to account takeover, privilege escalation or provide attacker with credential to other services. Users are advised to upgrade. There are no known workarounds for this vulnerability.
EPSS Score:
0%
Comprehensive Technical Analysis of EUVD-2024-35884
1. Vulnerability Assessment and Severity Evaluation
The vulnerability identified in the EUVD entry EUVD-2024-35884 affects the casgate Open Source Identity and Access Management system. The vulnerability allows a remote unauthenticated attacker to obtain sensitive information via a GET request to an API endpoint. This issue is critical due to the potential for account takeover, privilege escalation, or credential theft for other services.
Severity Evaluation:
- Base Score: 9.8 (CVSS 3.1)
- Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The high base score indicates a severe vulnerability. The CVSS vector string breaks down as follows:
- Attack Vector (AV): Network (N)
- Attack Complexity (AC): Low (L)
- Privileges Required (PR): None (N)
- User Interaction (UI): None (N)
- Scope (S): Unchanged (U)
- Confidentiality (C): High (H)
- Integrity (I): High (H)
- Availability (A): High (H)
This vulnerability is highly exploitable and can lead to significant impacts on confidentiality, integrity, and availability.
2. Potential Attack Vectors and Exploitation Methods
The primary attack vector involves sending a GET request to a specific API endpoint with the id parameter set to anonymous/anonymous. This bypasses authorization checks, allowing the attacker to access sensitive information.
Exploitation Methods:
- Information Disclosure: An attacker can retrieve sensitive information, such as user credentials or other confidential data.
- Account Takeover: By obtaining user credentials, an attacker can take over user accounts.
- Privilege Escalation: The attacker can escalate privileges within the system, gaining unauthorized access to higher-level functions.
- Credential Theft: The attacker can use the obtained credentials to access other services linked to the compromised accounts.
3. Affected Systems and Software Versions
The vulnerability affects versions of casgate prior to 0.1.0. Users running these versions are at risk and should upgrade to a patched version as soon as possible.
4. Recommended Mitigation Strategies
Immediate Actions:
- Upgrade: Users should upgrade to the latest version of
casgatethat includes the fix for this vulnerability. - Monitoring: Implement monitoring for suspicious GET requests to the affected API endpoints.
- Access Controls: Temporarily restrict access to the affected API endpoints until the patch is applied.
Long-Term Strategies:
- Regular Audits: Conduct regular security audits and vulnerability assessments.
- Patch Management: Establish a robust patch management process to ensure timely updates.
- Intrusion Detection: Deploy intrusion detection systems (IDS) to identify and respond to unauthorized access attempts.
5. Impact on European Cybersecurity Landscape
The vulnerability in casgate poses a significant risk to organizations using this identity and access management system within the European Union. Given the critical nature of identity management in securing digital assets, this vulnerability could lead to widespread data breaches and unauthorized access to sensitive information. The European cybersecurity landscape could see an increase in incidents related to account takeovers and privilege escalation, underscoring the need for vigilant security practices and timely patching.
6. Technical Details for Security Professionals
Vulnerability Details:
- Affected Component: API endpoint handling GET requests.
- Exploit Method: Sending a GET request with
idparameter set toanonymous/anonymous. - Impact: Bypasses authorization, leading to unauthorized access to sensitive information.
Mitigation Steps:
- Code Review: Ensure that all API endpoints properly validate and authenticate requests.
- Input Validation: Implement strict input validation to prevent unauthorized parameter values.
- Logging and Monitoring: Enhance logging to capture and monitor suspicious activities on API endpoints.
- Security Testing: Conduct thorough security testing, including penetration testing, to identify and mitigate similar vulnerabilities.
References:
By addressing this vulnerability promptly and implementing robust security measures, organizations can mitigate the risks associated with this critical issue and enhance their overall cybersecurity posture.