CVE-2023-39403 Missing authorization in EMUI

Critical 9.1 Published 13 Aug 2023 Updated 9 Oct 2024

Attackers can read and write sandbox files without authorization due to parameter verification flaws in the installd module.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2023-39403?

CVE-2023-39403 is a critical missing authorization vulnerability in Huawei Emui, published on 13 Aug 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Parameter verification vulnerability in the installd module. Successful exploitation of this vulnerability may cause sandbox files to be read and written without authorization.

Weakness: CWE-285, CWE-358

Which versions are affected by CVE-2023-39403?

It affects 2 products.

Products include Huawei Emui, Huawei Harmonyos.

How do I fix CVE-2023-39403?

No fix has been published for CVE-2023-39403 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2023-39403 being exploited?

There is no known exploitation of CVE-2023-39403 in the wild and no public exploit code.

All Huawei Emui vulnerabilities

Sources

Also known as GHSA-4625-9rv5-g3gm.