Remote code execution in Magento LTS

1) Deserialization of Untrusted Data

EUVDB-ID: #VU56129

Risk: Low

CVSSv3.1: 6.3 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-15244

CWE-ID: CWE-502 - Deserialization of Untrusted Data

Exploit availability: No

Description

The vulnerability allows a remote user to execute arbitrary code on the target system.

The vulnerability exists due to insecure input validation when processing serialized data. A remote privileged user can generate soap credentials that can be used to trigger RCE via PHP Object Injection through product attributes

Mitigation

Install updates from vendor's website.

Vulnerable software versions

magento-lts: 19.4.0 - 20.0.3

External links

http://github.com/OpenMage/magento-lts/commit/26433d15b57978fcb7701b5f99efe8332ca8630b
http://github.com/OpenMage/magento-lts/security/advisories/GHSA-jrgf-vfw2-hj26

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.