Samsung Electronics Breach Incident Score: Analysis & Impact (SAM4062340111725)

In this Rankiteo incident briefing, we review the Samsung Electronics breach identified under incident ID SAM4062340111725.

The analysis begins with a detailed overview of Samsung Electronics's information like the linkedin page: https://www.linkedin.com/company/samsung-electronics, the number of followers: 4774224, the industry type: Computers and Electronics Manufacturing and the number of employees: 161321 employees

After the initial compromise, the video explains how Rankiteo's incident engine converts technical details into a normalized incident score. The incident score before the incident was 773 and after the incident was 772 with a difference of -1 which is could be a good indicator of the severity and impact of the incident.

In the next step of the video, we will analyze in more details the incident and the impact it had on Samsung Electronics and their customers.

On 30 April 2025, Samsung disclosed Vulnerability Exploitation, Botnet Propagation (Mirai) and Unauthorized Arbitrary File Write issues under the banner "Critical Path Traversal Vulnerability in Samsung MagicINFO 9 Server (CVE-2025-4632) Exploited for Mirai Botnet Spread".

Patches have been provided by Samsung for a critical path traversal vulnerability in its MagicINFO 9 Server, tracked as CVE-2025-4632, which has been leveraged to spread the Mirai botnet.

The disruption is felt across the environment, affecting Samsung MagicINFO Server (Versions v8 to v9 21.1050.0).

In response, teams activated the incident response plan, moved swiftly to contain the threat with measures like Patch Release (Version 21.1052.0) and Intermediate Upgrade Requirement (21.1050.0 → 21.1052.0), and began remediation that includes Software Patches and Public Advisory, and stakeholders are being briefed through Public Disclosure via The Hacker News and Technical Advisory by Huntress.

The case underscores how Ongoing (Patches Released, Exploitation Observed in Three Incidents), teams are taking away lessons such as Critical importance of timely patching for known vulnerabilities, especially those with public PoCs, Complexity in patch deployment (e.g., intermediate upgrade requirements) can delay remediation and prolong exposure and Monitoring for exploitation attempts post-PoC release is essential to detect early-stage attacks (e.g., reconnaissance), and recommending next steps like Immediately apply Samsung's patch for MagicINFO Server (version 21.1052.0) after ensuring the intermediate upgrade (21.1050.0) is in place, Conduct network scans to identify and isolate unpatched MagicINFO servers vulnerable to CVE-2025-4632 and Monitor for signs of Mirai botnet activity (e.g., unusual outbound connections, reconnaissance commands), with advisories going out to stakeholders covering Samsung's patch advisory for MagicINFO Server users.

Finally, we try to match the incident with the MITRE ATT&CK framework to see if there is any correlation between the incident and the MITRE ATT&CK framework.

The MITRE ATT&CK framework is a knowledge base of techniques and sub-techniques that are used to describe the tactics and procedures of cyber adversaries. It is a powerful tool for understanding the threat landscape and for developing effective defense strategies.

Rankiteo's analysis has identified several MITRE ATT&CK tactics and techniques associated with this incident, each with varying levels of confidence based on available evidence. Under the Initial Access tactic, the analysis identified Exploit Public-Facing Application (T1190) with high confidence (95%), with evidence including path Traversal (CVE-2025-4632) exploited for arbitrary file writes and payload downloads, and proof-of-Concept Exploitation post-April 30 public release and Valid Accounts (T1078) with moderate to high confidence (70%), supported by evidence indicating unauthorized system access via exploited MagicINFO Server (versions v8-v9). Under the Execution tactic, the analysis identified Command and Scripting Interpreter: Unix Shell (T1059.004) with high confidence (90%), supported by evidence indicating identical commands for payload downloads and reconnaissance observed in incidents and Command and Scripting Interpreter: Windows Command Shell (T1059.003) with moderate to high confidence (70%), supported by evidence indicating execute malicious commands via arbitrary file write (cross-platform server). Under the Persistence tactic, the analysis identified Server Software Component: Web Shell (T1505.003) with moderate to high confidence (85%), supported by evidence indicating arbitrary file writes enabling malicious commands execution (web shell implantation likely) and Non-Application Layer Protocol (T1095) with moderate to high confidence (80%), supported by evidence indicating mirai botnet integration suggests C2 over non-standard protocols (e.g., IRC, custom TCP). Under the Privilege Escalation tactic, the analysis identified Exploitation for Privilege Escalation (T1068) with moderate to high confidence (80%), supported by evidence indicating arbitrary file writes could enable privilege escalation via system file modification. Under the Defense Evasion tactic, the analysis identified Indicator Removal: File Deletion (T1070.004) with moderate to high confidence (75%), supported by evidence indicating arbitrary file writes may include log tampering or cleanup scripts and Impair Defenses: Disable or Modify Tools (T1562.001) with moderate to high confidence (70%), supported by evidence indicating arbitrary file writes could disable security tools or modify configurations. Under the Credential Access tactic, the analysis identified OS Credential Dumping: Cache Dumping (T1003.005) with moderate confidence (65%), supported by evidence indicating lateral movement within networks suggests potential credential harvesting. Under the Discovery tactic, the analysis identified System Information Discovery (T1082) with high confidence (90%), supported by evidence indicating reconnaissance commands observed in all three incidents and System Network Configuration Discovery (T1016) with moderate to high confidence (85%), supported by evidence indicating reconnaissance likely includes network mapping for lateral movement. Under the Lateral Movement tactic, the analysis identified Remote Services: SSH (T1021.004) with moderate to high confidence (75%), supported by evidence indicating lateral movement within networks post-exploitation and Remote Services: Windows Admin Shares (T1021.006) with moderate to high confidence (70%), supported by evidence indicating lateral movement in enterprise environments (MagicINFO used in digital signage). Under the Command and Control tactic, the analysis identified Application Layer Protocol: Web Protocols (T1071.001) with moderate to high confidence (85%), supported by evidence indicating download payloads via HTTP/HTTPS likely for Mirai botnet staging and Proxy: External Proxy (T1090.002) with moderate to high confidence (70%), supported by evidence indicating mirai botnet C2 often uses proxies for obfuscation. Under the Exfiltration tactic, the analysis identified Exfiltration Over C2 Channel (T1041) with moderate to high confidence (70%), supported by evidence indicating reconnaissance data likely exfiltrated via Mirai C2 channels. Under the Impact tactic, the analysis identified Endpoint Denial of Service: Application or System Exploitation (T1499.004) with high confidence (95%), with evidence including distributed denial-of-service (DDoS) attacks via Mirai botnet integration, and potential botnet integration for follow-on attacks and Data Encrypted for Impact (T1486) with lower confidence (30%), supported by evidence indicating potential follow-on attacks (speculative; no ransomware confirmed). Under the Botnet tactic, the analysis identified Obtain Capabilities: Botnet (T1588.005) with high confidence (95%), with evidence including leveraged to spread the Mirai botnet, and botnet infection confirmed in three incidents. These correlations help security teams understand the attack chain and develop appropriate defensive measures based on the observed tactics and techniques.