Auth bypass in Linecorp Line
CVE-2018-13446
An issue was discovered in the LINE jp.naver.line application 8.8.1 for Android. The Passcode feature allows authentication bypass via runtime manipulation that forces a certain method's return value to true. In other words, an attacker could authenticate with an arbitrary passcode. NOTE: the vendor indicates that this is not an attack of interest within the context of their threat model, which excludes Android devices on which rooting has occurred
Vulnerability class: Broken Authentication
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.0 (High). Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.004 (26.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 27th percentile — 26.5% 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
- Linecorp Line — versions 8.8.1
Weakness classification (CWE)
References
- gist.github.com/tanprathan/efde53e5b312f50edb08f050b6be3928 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-13446?
- CVE-2018-13446 is a high-severity vulnerability in Linecorp Line, classified under Improper Authentication. CVSS score: 7.0/10. Published 2018-08-16.
- How severe is CVE-2018-13446?
- High severity. CVSS v3 base score is 7.0 out of 10.