CVE-2017-2590 : What You Need to Know

A security loophole in Red Hat's ipa version 4.4 allows authenticated attackers to manipulate CAs in Dogtag without proper authorization, potentially leading to denial of service issues.

Understanding CVE-2017-2590

A vulnerability in ipa version 4.4 that affects Red Hat's IdM functionality.

What is CVE-2017-2590?

This CVE identifies a flaw in ipa versions prior to 4.4, specifically in the ca-del, ca-disable, and ca-enable functions within IdM.

The Impact of CVE-2017-2590

Attack Vector: Network
Attack Complexity: Low
Privileges Required: Low
Confidentiality Impact: None
Integrity Impact: High
Availability Impact: High
Scope: Unchanged
This vulnerability could result in denial of service issues affecting certificate issuance, OCSP signing, and secret key removal.

Technical Details of CVE-2017-2590

A detailed look at the technical aspects of this vulnerability.

Vulnerability Description

The ca-del, ca-disable, and ca-enable functions in IdM lack proper user permission verification, allowing unauthorized changes to CAs in Dogtag.

Affected Systems and Versions

Product: ipa
Vendor: Red Hat
Affected Version: 4.4

Exploitation Mechanism

Authenticated attackers without proper authorization can exploit this vulnerability to delete, disable, or enable CAs, leading to denial of service issues.

Mitigation and Prevention

Steps to address and prevent the exploitation of CVE-2017-2590.

Immediate Steps to Take

Update ipa to version 4.4 or later to mitigate the vulnerability.
Monitor and restrict user permissions to prevent unauthorized changes to CAs.

Long-Term Security Practices

Regularly review and update access controls within IdM to ensure proper authorization for CA modifications.
Conduct security training to educate users on the importance of permission verification.

Patching and Updates

Apply patches and updates provided by Red Hat to address the security loophole in ipa version 4.4.