CVE-2023-5322 in DAR-7000
Summary
by MITRE • 10/25/2023
** UNSUPPORTED WHEN ASSIGNED ** A vulnerability was found in D-Link DAR-7000 up to 20151231. It has been rated as critical. Affected by this issue is some unknown functionality of the file /sysmanage/edit_manageadmin.php. The manipulation of the argument id leads to sql injection. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-240992. NOTE: This vulnerability only affects products that are no longer supported by the maintainer. NOTE: Vendor was contacted early and confirmed immediately that the product is end-of-life. It should be retired and replaced.
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Analysis
by VulDB Data Team • 07/10/2024
The vulnerability identified as CVE-2023-5322 represents a critical sql injection flaw in D-Link DAR-7000 routers with firmware versions up to 20151231. This issue affects the administrative management interface through the /sysmanage/edit_manageadmin.php file where the id parameter is improperly validated, creating a significant security risk that allows remote attackers to execute malicious sql queries against the device's database. The vulnerability has been publicly disclosed and is actively exploitable, making it a serious concern for any organization still operating unsupported network equipment.
The technical implementation of this vulnerability stems from inadequate input validation within the administrative web interface of the D-Link router. When an attacker manipulates the id argument in the edit_manageadmin.php endpoint, the system fails to properly sanitize or escape user input before incorporating it into sql database queries. This classic sql injection vector enables attackers to bypass authentication mechanisms and potentially gain full administrative control over the router, allowing them to modify network configurations, access sensitive data, or establish persistent backdoors within the network infrastructure. The vulnerability maps directly to CWE-89 which specifically addresses sql injection flaws in software applications.
From an operational perspective, this vulnerability presents a severe risk to network security posture as it allows remote exploitation without requiring authentication credentials. Attackers can leverage this flaw to gain unauthorized access to the router's administrative functions, potentially compromising the entire network infrastructure. The impact extends beyond simple data theft to include network disruption, unauthorized access to internal systems, and potential lateral movement within the network. The fact that this vulnerability affects end-of-life equipment means that no security patches or updates are available from the vendor, leaving affected systems completely exposed to exploitation.
The recommended mitigation strategy for this vulnerability involves immediate retirement of all D-Link DAR-7000 devices from production environments, as replacement with supported network equipment is the only effective solution. Organizations should conduct comprehensive inventory audits to identify all remaining instances of this equipment and implement network segmentation to isolate any devices that cannot be immediately replaced. Network monitoring should be enhanced to detect potential exploitation attempts, and any affected systems should be physically disconnected from the network until replacement hardware is deployed. This vulnerability aligns with ATT&CK technique T1190 for exploitation of remote services and T1071.004 for application layer protocol usage, demonstrating how legacy network equipment can serve as critical attack vectors in modern security environments.