CVE-2018-13446 Auth bypass in n/a

High 7.0 Published 16 Aug 2018 Updated 5 Aug 2024

Attackers with root access can bypass the LINE app passcode by manipulating runtime values, allowing unauthorized account access.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2018-13446?

CVE-2018-13446 is a high-severity authentication bypass vulnerability in Linecorp Line, published on 16 Aug 2018. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

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

Weakness: CWE-287

Which versions are affected by CVE-2018-13446?

It affects 1 product.

Products include Linecorp Line.

How do I fix CVE-2018-13446?

No fix has been published for CVE-2018-13446 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2018-13446 being exploited?

There is no known exploitation of CVE-2018-13446 in the wild and no public exploit code.

All Linecorp Line vulnerabilities

Sources

Also known as GHSA-p2q3-gpj5-6r93.