CVE-2020-3684 Missing authorization in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wired Infrastructure and Networking

High 7.8 Published 2 Nov 2020 Updated 4 Aug 2024

Attackers can bypass access permission checks in SMEM TOC partition handling, potentially leading to privilege escalation or code execution on affected Qualcomm devices.

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-2020-3684?

CVE-2020-3684 is a high-severity missing authorization vulnerability in Qualcomm Apq8009 Firmware, published on 2 Nov 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

u'QSEE reads the access permission policy for the SMEM TOC partition from the SMEM TOC contents populated by XBL Loader and applies them without validation' in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wired Infrastructure and Networking in Agatti, APQ8009, APQ8098, Bitra, IPQ6018, Kamorta, MDM9150, MDM9205, MDM9206, MDM9607, MDM9650, MSM8905, MSM8998, Nicobar, QCA6390, QCS404, QCS405, QCS605, QCS610, Rennell, SA415M, SA515M, SA6155P, SA8155P, Saipan, SC7180, SC8180X, SDA660, SDA845, SDM630, SDM636, SDM660, SDM670, SDM710, SDM845, SDM850, SDX20, SDX24, SDX55, SM6150, SM7150, SM8150, SM8250, SXR1130, SXR2130

Which versions are affected by CVE-2020-3684?

It affects 45 products.

Products include Qualcomm Agatti Firmware, Qualcomm Apq8009 Firmware, Qualcomm Apq8098 Firmware, Qualcomm Bitra Firmware, Qualcomm Ipq6018 Firmware, Qualcomm Kamorta Firmware and 39 more.

How do I fix CVE-2020-3684?

No fix has been published for CVE-2020-3684 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-2020-3684 being exploited?

There is no known exploitation of CVE-2020-3684 in the wild and no public exploit code.

All Qualcomm Apq8009 Firmware vulnerabilities

Sources

Also known as GHSA-hh6q-wqw3-85g6.