Exploited vulnerability · CISA KEV

Is CVE-2020-4427 exploited? Yes: in CISA KEV since 3 Nov 2021

Gociux · IBM Data Risk Manager · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2020-4427, IBM Data Risk Manager Security Bypass Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 3 Nov 2021, 545 days after it was published. It affects IBM Data Risk Manager. If you run it, CISA's required action is: Apply updates per vendor instructions.

What it is

IBM Data Risk Manager contains a security bypass vulnerability that could allow a remote attacker to bypass security restrictions when configured with SAML authentication. By sending a specially crafted HTTP request, an attacker could exploit this vulnerability to bypass the authentication process and gain full administrative access to the system.

What to do

1. Check whether you run it. Look for Data Risk Manager in your asset inventory, including appliances and cloud images. Stack check lists every exploited IBM CVE at once.
2. Apply the fix. Apply updates per vendor instructions.
3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 7 May 2020.
4. Get told next time. Email alerts when CISA adds a CVE for IBM.

Other exploited CVEs in Data Risk Manager

• CVE-2020-4430: IBM Data Risk Manager Directory Traversal Vulnerability (3 Nov 2021)
• CVE-2020-4428: IBM Data Risk Manager Remote Code Execution Vulnerability (3 Nov 2021)

References

• nvd.nist.gov/vuln/detail/CVE-2020-4427

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in November 2021 · IBM scorecard · act-now radar.