What is CVE-2020-4640?

CVE-2020-4640 is a medium-severity vulnerability in IBM API Connect, classified under Information Disclosure. CVSS score: 4.1/10. Published 2021-02-04.

How severe is CVE-2020-4640?

Medium severity. CVSS v3 base score is 4.1 out of 10.

Information disclosure in IBM API Connect

CVE-2020-4640

Certain IBM API Connect 10.0.0.0 through 10.0.1.0 and 2018.4.1.0 through 2018.4.1.13 configurations can result in sensitive information in the URL fragment identifiers. This information can be cached in the intermediate nodes like proxy servers, cdn, logging platforms, etc. An attacker can make use of this information to perform attacks by impersonating a user. IBM X-Force ID: 185510.

Vulnerability class: Information Disclosure

EPSS: 0.003 (27.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.1 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N.

Affected products

Ibm Api Connect — versions 2018.4.1.0, 2018.4.1.13, 10.0.0.0
Ibm Api_connect — versions 10.0.0.0, 10.0.1.0

Weakness classification (CWE)

CWE-200 — Information Disclosure

References

psirt@us.ibm.com (x_refsource_CONFIRM, Vendor Advisory)
psirt@us.ibm.com (VDB Entry, vdb-entry, Vendor Advisory, x_refsource_XF)

Frequently asked questions

What is CVE-2020-4640?: CVE-2020-4640 is a medium-severity vulnerability in IBM API Connect, classified under Information Disclosure. CVSS score: 4.1/10. Published 2021-02-04.
How severe is CVE-2020-4640?: Medium severity. CVSS v3 base score is 4.1 out of 10.