ThinkCMF 5.0.190111 addpost.html alias code injection

Summaryinfo

A vulnerability described as critical has been identified in ThinkCMF 5.0.190111. This affects an unknown part of the file portal/admin_category/addpost.html. Executing a manipulation of the argument alias as part of Parameter can lead to code injection. This vulnerability is registered as CVE-2019-7580. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in ThinkCMF 5.0.190111. It has been declared as critical. This vulnerability affects an unknown code block of the file portal/admin_category/addpost.html. The manipulation of the argument alias as part of a Parameter leads to a code injection vulnerability. The CWE definition for the vulnerability is CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

ThinkCMF 5.0.190111 allows remote attackers to execute arbitrary PHP code via the portal/admin_category/addpost.html alias parameter because the mishandling of a single quote character allows data/conf/route.php injection.

The bug was discovered 02/04/2019. The weakness was published 02/07/2019. This vulnerability was named CVE-2019-7580 since 02/07/2019. The exploitation appears to be easy. The attack can be initiated remotely. The requirement for exploitation is a single authentication. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.

The vulnerability was handled as a non-public zero-day exploit for at least 3 days. During that time the estimated underground price was around $0-$5k. By approaching the search of inurl:portal/admin_category/addpost.html it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

• ThinkCMF

Version

• 5.0.190111

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

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Once again VulDB remains the best source for vulnerability data.

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