CVE-2025-7824: Jinher OA 1.1 Vulnerable to XML External Entity (XXE) Injection
Jinher OA 1.1 is susceptible to an XML External Entity (XXE) injection vulnerability. This flaw allows a remote attacker to potentially read sensitive files, conduct server-side request forgery (SSRF) attacks, or cause a denial-of-service condition. This blog post provides an overview of the vulnerability, its impact, and recommendations for mitigation.
Vulnerability Details
- CVE ID: CVE-2025-7824
- Description: An XML External Entity (XXE) vulnerability exists in Jinher OA 1.1 in the XmlHttp.aspx file. By manipulating XML input, an attacker can potentially read arbitrary files from the server, trigger SSRF attacks, or cause a denial of service.
- CVSS Score: 7.3 HIGH
- CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
- CVSS v3.1 Explanation: This score reflects that the vulnerability is remotely exploitable (AV:N) with low attack complexity (AC:L) and requires no privileges (PR:N) or user interaction (UI:N). The impact is limited to low confidentiality (C:L), integrity (I:L), and availability (A:L).
- Exploit Requirements: No authentication is required to exploit this vulnerability. An attacker simply needs to send a crafted XML request to the affected endpoint.
- Affected Product: Jinher OA 1.1
- Affected Vendor: Jinher
- Affected Version: 1.1
- CWE: CWE-611 (Improper Restriction of XML External Entity Reference) & CWE-610 (External Linkage to Untrusted Site)
- CWE Explanation: CWE-611 and CWE-610 relate to how an application handles XML external entities. When processing XML, the application inadvertently allows inclusion of external resources (like files) which can be controlled by a malicious actor. This can lead to sensitive information disclosure.
Timeline of Events
- 2025-07-19: CVE ID assigned and vulnerability reported.
- 2025-07-19: Public disclosure of the vulnerability and exploit.
Exploitability & Real-World Risk
The public availability of an exploit significantly increases the risk associated with this vulnerability. An attacker could potentially exploit this vulnerability to read sensitive configuration files, application code, or even system files, depending on the server's file system permissions. In a real-world scenario, this could lead to data breaches or unauthorized access to internal systems. The XXE flaw also allows for Server-Side Request Forgery (SSRF) where the Jinher OA server can be made to interact with other internal systems, potentially bypassing firewalls.
Recommendations
- Patch: Apply the latest security patches provided by Jinher. Contact the vendor for the patch information.
- Input Validation: Implement strict input validation to prevent the injection of malicious XML payloads. Sanitize XML input to remove or neutralize any external entity declarations.
- Disable External Entities: Configure your XML parser to disable the processing of external entities. This is the most effective way to prevent XXE attacks.
- Web Application Firewall (WAF): Deploy a WAF with rules to detect and block XXE attacks.
Technical Insight
The vulnerability lies in the `XmlHttp.aspx` file of Jinher OA 1.1. The application processes XML input without properly sanitizing or disabling external entities. By crafting a malicious XML payload with an external entity declaration (e.g., ` ]>
Credit to Researcher(s)
This vulnerability was reported by cc2024k.
References
Tags
#JinherOA #XXE #CVE-2025-7824 #XML External Entity #Remote Code Execution #Vulnerability #Security
Summary: Jinher OA 1.1 is vulnerable to XML External Entity (XXE) injection in the XmlHttp.aspx file, allowing remote attackers to read sensitive files or cause denial of service by manipulating XML input. Public exploit code exists, increasing the urgency to apply security patches and implement mitigation measures such as disabling external entities and input validation.
CVE ID: CVE-2025-7824
Risk Analysis: Successful exploitation of this vulnerability can lead to sensitive data disclosure, potentially including configuration files, application code, or system files. It can also be used to perform server-side request forgery (SSRF) attacks, allowing the attacker to access internal resources. A denial-of-service condition can also be triggered.
Recommendation: Apply the latest security patches provided by Jinher. Implement strict input validation to prevent the injection of malicious XML payloads. Disable the processing of external entities in your XML parser. Deploy a Web Application Firewall (WAF) with rules to detect and block XXE attacks.
Timeline
- 2025-07-19: CVE ID assigned and vulnerability reported.
- 2025-07-19: Public disclosure of the vulnerability and exploit.