What is CVE-2018-0591?

CVE-2018-0591 is a medium-severity vulnerability in T-Joy Kinepass, classified under Improper Certificate Validation. CVSS score: 5.9/10. Published 2018-05-14.

How severe is CVE-2018-0591?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Vulnerability in T-Joy Kinepass

CVE-2018-0591

The KINEPASS App for Android Ver 3.1.1 and earlier, and for iOS Ver 3.1.2 and earlier do not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

Vulnerability class: Improper Certificate Validation

EPSS: 0.009 (54.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

T-joy Kinepass
T-joy Co.,ltd. Kinepass App — versions for Android Ver 3.1.1 and earlier, and for iOS Ver 3.1.2 and earlier

Weakness classification (CWE)

CWE-295 — Improper Certificate Validation

References

vultures@jpcert.or.jp (Third Party Advisory, x_refsource_MISC)
vultures@jpcert.or.jp (VDB Entry, Third Party Advisory, x_refsource_JVN, third-party-advisory)
vultures@jpcert.or.jp (Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2018-0591?: CVE-2018-0591 is a medium-severity vulnerability in T-Joy Kinepass, classified under Improper Certificate Validation. CVSS score: 5.9/10. Published 2018-05-14.
How severe is CVE-2018-0591?: Medium severity. CVSS v3 base score is 5.9 out of 10.