#VU24824 SQL injection in Plone - CVE-2020-7939

Vulnerability identifier: #VU24824

Vulnerability risk: High

CVSSv4.0: 7.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2020-7939

CWE-ID: CWE-89

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Plone
Web applications / CMS

Vendor: Plone

Description

The vulnerability allows a remote attacker to execute arbitrary SQL queries in database.

The vulnerability exists due to insufficient sanitization of user-supplied data in DTML or in connection objects. A remote attacker can send a specially crafted request to the affected application and execute arbitrary SQL commands within the application database.

Successful exploitation of this vulnerability may allow a remote attacker to read, delete, modify data in database and gain complete control over the affected application.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Plone: 4.0 - 5.2.1

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External links
https://www.openwall.com/lists/oss-security/2020/01/24/1
https://plone.org/security/hotfix/20200121
https://plone.org/security/hotfix/20200121/sql-injection-in-dtml-or-in-connection-objects
https://www.openwall.com/lists/oss-security/2020/01/22/1

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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