What happened

Samsung MagicINFO 9 Server is vulnerable to a path traversal that permits arbitrary file writes with system authority in versions before 21.1050 NVD entry. The issue is tracked as CVE-2024-7399 with CVSS 8.8 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H) NVD vector. CISA has added CVE-2024-7399 to the Known Exploited Vulnerabilities Catalog, confirming active exploitation in the wild CISA KEV listing. Independent reporting also notes observed exploitation activity targeting MagicINFO 9 Server via path traversal mechanics Arctic Wolf analysis.

Samsung tracks product fixes via its Security Updates portal, which references CVE-2024-7399 for remediation guidance Samsung Security Updates. Aggregated advisories on the CVE are also available for operator visibility and triage GitHub Advisory index.

Why it matters

The network-accessible vector (AV:N) and low attack complexity (AC:L) mean exploitation does not require physical access or complex conditions NVD vector. The requirement for only low-privileged access (PR:L) with no user interaction (UI:N) lowers the bar for attackers who can obtain or abuse basic credentials NVD details. Impact ratings at C:H/I:H/A:H indicate full compromise potential of data, integrity, and service availability once the primitive is achieved NVD impact.

Active exploitation status elevates urgency beyond routine patch cadence; KEV inclusion signals real-world targeting and prioritization for remediation across enterprises CISA KEV. Third-party telemetry corroborates attacker interest in this flaw, consistent with path traversal–driven file-write abuse patterns Arctic Wolf report.

Technical detail

CVE-2024-7399 is classified as “Improper limitation of a pathname to a restricted directory,” i.e., a directory traversal enabling writes outside intended locations MITRE CVE record. In MagicINFO 9 Server prior to version 21.1050, an attacker can leverage this flaw to write an arbitrary file with system-level authority, which can subvert application and host controls NVD description. The vulnerability resides in the server component and is reachable over the network per the AV:N metric, allowing remote exploitation paths NVD vector.

The CVSS base score is 8.8 with vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H, establishing that minimal privileges are needed and no user action is required for a successful attack NVD CVSS. GitHub’s advisory index tracks the CVE to ease cross-tool correlation and alerting in developer and security pipelines GitHub Advisory search. Arctic Wolf reports active exploitation consistent with path traversal techniques against MagicINFO 9 Server targets, underscoring live attacker adoption Arctic Wolf blog.

Defense

Patch now. The vulnerable condition affects Samsung MagicINFO 9 Server versions before 21.1050; upgrade to 21.1050 or later to remediate NVD affected versions. Validate remediation against Samsung’s Security Updates portal that references CVE-2024-7399 for the product line Samsung Security Updates. Because this CVE is in CISA’s KEV (actively exploited), prioritize patching in emergency change windows over routine cycles CISA KEV priority.

If patching is delayed, reduce exposure consistent with the AV:N vector by gating server access to trusted networks and authenticated channels while you stage updates NVD vector. Given the vulnerability enables arbitrary file writes with high privileges, scrutinize the server for unexpected new or modified files created by the MagicINFO service context NVD description. Review authentication logs for suspicious low-privileged sessions aligning with the PR:L precondition to exploitation NVD metrics. Track current exploitation tradecraft and any indicators discussed by third-party reporting to guide hunts and incident response triage Arctic Wolf write-up.

Lyrie Verdict

This is a machine-speed file-abuse problem: attackers only need low privilege over the network to induce high-privilege file writes on the host NVD CVSS. Lyrie’s autonomous detectors key on anomalous creation or modification of system-owned paths by the MagicINFO process, correlated with low-privileged sessions and no user interaction, matching PR:L and UI:N signals NVD metrics. We auto-elevate risk and trigger containment when a network-exposed MagicINFO node exhibits privileged file-write behavior consistent with this CVE’s semantics, ahead of human response windows NVD description.