Sangfor Behavior Management System XML Parser /src/sangforindex xml external entity reference

Summaryinfo

A vulnerability was found in Sangfor Behavior Management System and classified as problematic. The affected element is an unknown function of the file /src/sangforindex of the component XML Parser. Such manipulation leads to xml external entity reference. This vulnerability is listed as CVE-2023-7307. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in Sangfor Behavior Management System (the affected version is unknown). It has been rated as critical. Affected by this issue is an unknown code of the file /src/sangforindex of the component XML Parser. The manipulation with an unknown input leads to a xml external entity reference vulnerability. Using CWE to declare the problem leads to CWE-611. The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Sangfor Behavior Management System (also referred to as DC Management System in Chinese-language documentation) contains an XML external entity (XXE) injection vulnerability in the /src/sangforindex endpoint. A remote unauthenticated attacker can submit crafted XML data containing external entity definitions, leading to potential disclosure of internal files, server-side request forgery (SSRF), or other impacts depending on parser behavior. The vulnerability is due to improper configuration of the XML parser, which allows resolution of external entities without restriction. This product is now integrated into their IAM (Internet Access Management) platform and an affected version range is undefined.

The advisory is shared for download at cnblogs.com. This vulnerability is handled as CVE-2023-7307 since 08/25/2025. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 08/28/2025).

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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Vendor

• Sangfor

Name

• Behavior Management System

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