Auth bypass in IBM Security Access Manager
CVE-2018-1443
An XML parsing vulnerability affects IBM SAML-based single sign-on (SSO) systems (IBM Security Access Manager 9.0.0 - 9.0.4 and IBM Tivoli Federated Identity Manager 6.2 - 6.0.2.) This vulnerability can allow an attacker with authenticated access to trick SAML systems into authenticating as a different user without knowledge of the victim users password. IBM X-Force ID: 139754.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.004 (32.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 32nd percentile — 32.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- IBM Security Access Manager — versions 9.0.3.1, 9.0.0.1, 9.0.4
- IBM Security Access Manager
- IBM Tivoli Federated Identity Manager — versions 6.2.2, 6.2, 6.2.1
- IBM Tivoli Federated Identity Manager — versions 6.2.0, 6.2.1, 6.2.2
Weakness classification (CWE)
References
- www.securitytracker.com/id/1040454 (VDB Entry, Third Party Advisory, vdb-entry)
- www.securitytracker.com/id/1040455 (VDB Entry, Third Party Advisory, vdb-entry)
- exchange.xforce.ibmcloud.com/vulnerabilities/139754 (VDB Entry, vdb-entry, Vendor Advisory)
- www.ibm.com/support/docview.wss (Vendor Advisory)
- www.securityfocus.com/bid/103365 (VDB Entry, Third Party Advisory, vdb-entry)
- www.ibm.com/support/docview.wss (Vendor Advisory)
Frequently asked questions
- What is CVE-2018-1443?
- CVE-2018-1443 is a medium-severity vulnerability in IBM Security Access Manager, classified under Improper Authentication. CVSS score: 5.9/10. Published 2018-03-08.
- How severe is CVE-2018-1443?
- Medium severity. CVSS v3 base score is 5.9 out of 10.