ZenCart 1.5.5e AdminRequestSanitizer.php traverseStrictSanitize admin_name code injection

Summaryinfo

A vulnerability classified as critical was found in ZenCart 1.5.5e. This affects the function traverseStrictSanitize of the file admin_dir/includes/classes/AdminRequestSanitizer.php. Such manipulation of the argument admin_name leads to code injection. This vulnerability is uniquely identified as CVE-2017-11675. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability was found in ZenCart 1.5.5e. It has been rated as critical. Affected by this issue is the function traverseStrictSanitize of the file admin_dir/includes/classes/AdminRequestSanitizer.php. The manipulation of the argument admin_name with an unknown input leads to a code injection vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. CVE summarizes:

The traverseStrictSanitize function in admin_dir/includes/classes/AdminRequestSanitizer.php in ZenCart 1.5.5e mishandles key strings, which allows remote authenticated users to execute arbitrary PHP code by placing that code into an invalid array index of the admin_name array parameter to admin_dir/login.php, if there is an export of an error-log entry for that invalid array index.

The bug was discovered 07/26/2017. The weakness was disclosed 07/27/2017 (Website). The advisory is shared for download at github.com. This vulnerability is handled as CVE-2017-11675 since 07/26/2017. The attack may be launched remotely. The successful exploitation requires a simple 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 1 days. During that time the estimated underground price was around $0-$5k. By approaching the search of inurl:admin_dir/includes/classes/AdminRequestSanitizer.php 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.

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• ZenCart

Version

• 1.5.5e

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CPE 2.2info

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