Auth bypass in IBM API Connect
CVE-2018-1778
IBM LoopBack (IBM API Connect 2018.1, 2018.4.1, 5.0.8.0, and 5.0.8.4) could allow an attacker to bypass authentication if the AccessToken Model is exposed over a REST API, it is then possible for anyone to create an AccessToken for any User provided they know the userId and can hence get access to the other user’s data / access to their privileges (if the user happens to be an Admin for example). IBM X-Force ID: 148801.
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.7 (High). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L.
EPSS exploit prediction
EPSS: 0.034 (88.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 88.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.034 · newest: 0.034 · change: 0.000
Affected products
- IBM API Connect — versions 5.0.8.0, 2018.4.1, 5.0.8.4
- IBM API Connect
Weakness classification (CWE)
References
- www.ibm.com/support/docview.wss (Patch, Vendor Advisory)
- exchange.xforce.ibmcloud.com/vulnerabilities/148801 (VDB Entry, vdb-entry, Vendor Advisory)
- www.securityfocus.com/bid/106313 (VDB Entry, Third Party Advisory, vdb-entry)
Frequently asked questions
- What is CVE-2018-1778?
- CVE-2018-1778 is a high-severity vulnerability in IBM API Connect, classified under Improper Authentication. CVSS score: 7.7/10. Published 2018-12-20.
- How severe is CVE-2018-1778?
- High severity. CVSS v3 base score is 7.7 out of 10.