CVE-2017-16558 Contao SQL injection in the backend and listing module

What is CVE-2017-16558?

CVE-2017-16558 is a critical SQL injection vulnerability in n/a, published on 25 Apr 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Contao 3.0.0 to 3.5.30 and 4.0.0 to 4.4.7 contains an SQL injection vulnerability in the back end as well as in the listing module.

Weakness: CWE-89

Which versions are affected by CVE-2017-16558?

12 open source packages ship an affected version, including contao/contao, contao/core-bundle and contao/listing-bundle. It affects 1 product.

Products include Contao Contao Cms.

How do I fix CVE-2017-16558?

Upgrade contao/contao to 4.4.8 or later.

Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.

Is CVE-2017-16558 being exploited?

There is no known exploitation of CVE-2017-16558 in the wild and no public exploit code.

Other vulnerabilities in n/a

• CVE-2014-1860 Deserialization in n/a Critical 9.8
• CVE-2019-10641 Contao Does Not Invalidate Existing Sessions When Password Changes Critical 9.8
• CVE-2019-10643 Contao Does Not Expire Tokens Correctly Critical 9.8
• CVE-2019-10642 Contao CSRF Token Bypass High 8.8
• CVE-2017-10993 Contao Core directory traversal vulnerability High 8.8

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-w38g-hj45-mjjp.