CVE-2019-9798

On Android systems, Firefox can load a library from APITRACE_LIB, which is writable by all users and applications. This could allow malicious third party applications to execute a man-in-the-middle attack if a malicious code was written to that location and loaded. Note: This issue only affects Android. Other operating systems are unaffected.. This vulnerability affects Firefox < 66.

Weakness

The product searches for critical resources using an externally-supplied search path that can point to resources that are not under the product’s direct control.

Affected Software

Extended Description

This might allow attackers to execute their own programs, access unauthorized data files, or modify configuration in unexpected ways. If the product uses a search path to locate critical resources such as programs, then an attacker could modify that search path to point to a malicious program, which the targeted product would then execute. The problem extends to any type of critical resource that the product trusts. Some of the most common variants of untrusted search path are:

Potential Mitigations

Related Attack Patterns

• https://cwe.mitre.org/data/definitions/38.html

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=1527534
• https://www.mozilla.org/security/advisories/mfsa2019-07/