CVE-2020-9664 Magento php object injection vulnerability

Critical 9.8 Published 22 Jul 2020 Updated 4 Aug 2024

An attacker can achieve arbitrary code execution via PHP object injection in Magento, requiring immediate patching.

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-2020-9664?

CVE-2020-9664 is a critical unsafe deserialization vulnerability in Magento Magento, published on 22 Jul 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Magento versions 1.14.4.5 and earlier, and 1.9.4.5 and earlier have a php object injection vulnerability. Successful exploitation could lead to arbitrary code execution.

Weakness: CWE-502

Which versions are affected by CVE-2020-9664?

2 open source packages ship an affected version, including magento/core. It affects 1 product.

Package	Affected	Fixed in
`magento/core` Packagist	All versions to `1.9.4.5`	None
`magento/core` Packagist	All versions to `1.9.4.5`	None

Products include Magento Magento.

How do I fix CVE-2020-9664?

No fix has been published for CVE-2020-9664 yet. Limit exposure of the affected software until one is available.

Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.

Is CVE-2020-9664 being exploited?

There is no known exploitation of CVE-2020-9664 in the wild and no public exploit code.

All Magento Magento vulnerabilities

Sources

Also known as GHSA-337c-3rch-q35j.