CVE-2023-7307: XXE

Description

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. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-09-06 UTC.

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Weakness Type (CWE)

CWE-611 CWE-611

References

Other References

https://support.sangfor.com.cn/productDocument/read?product_id=22&version_id=329&category_id=261800 https://www.cnblogs.com/pursue-security/p/17666126.html https://www.sangfor.com/blog/cybersecurity/launching-sangfor-iam-12-0-23-manage-risky-shadow-it-right-way https://www.vulncheck.com/advisories/sangfor-behavior-management-system-xml-external-entity-injection

Frequently Asked Questions

What is CVE-2023-7307? +

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. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-09-06 UTC.

How do I check if I'm vulnerable to CVE-2023-7307? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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