Description

Path traversal vulnerability exists in SGA1000. If this vulnerability is exploited, arbitrary files on the server may be viewed and/or altered by an attacker who can access the product via FTP.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "8.1",
  "pubDate": "2026-09-14T07:17:17.980Z",
  "pubdate": "2026-09-14T07:17:17.980Z",
  "executiveSummary": "A path traversal vulnerability exists within the SGA1000 product, specifically affecting its FTP interface. This security flaw allows an authenticated remote attacker to bypass intended directory restrictions, granting unauthorized access to arbitrary files residing on the underlying server filesystem.\nThe vulnerability stems from improper validation of user-supplied input when processing file system requests via the FTP protocol. By manipulating path parameters with traversal sequences, an attacker can navigate outside of the restricted root directory assigned to the FTP service.\nThe primary impact involves unauthorized disclosure of sensitive information, potentially leading to the leakage of configuration files, credentials, or system data. Furthermore, if the FTP service is configured with write permissions, an attacker could potentially modify or overwrite critical files, leading to a compromise of system integrity or service availability.\nThis vulnerability poses a significant risk to the SGA1000 deployment, as it permits an attacker to perform unauthorized file operations on the host operating system. Successful exploitation requires network access to the FTP service, highlighting the necessity for robust access control and input sanitization measures.",
  "technicalDetails": "The SGA1000 product exhibits a path traversal vulnerability originating from insufficient sanitization of input parameters within the FTP service handler. This flaw allows an attacker to navigate outside the intended service root directory by utilizing directory traversal sequences, such as '../'.\nIn a standard FTP interaction, the server is expected to constrain user access to a defined chroot environment. The vulnerability arises because the SGA1000 FTP implementation fails to properly normalize or validate requested file paths before processing them against the server's filesystem API. Consequently, an attacker can construct malicious file requests that escape the sandbox.\nThe exploitation process typically follows a systematic flow: 1. The attacker establishes an FTP connection to the target SGA1000 server and authenticates with valid credentials. 2. Upon establishing a session, the attacker issues FTP commands (e.g., RETR, STOR, DELE) using path strings containing multiple '../' sequences (e.g., 'RETR ../../../etc/passwd'). 3. The server-side application processes these strings without verifying that the resolved final path is still within the designated home directory. 4. Due to the lack of adequate path checking or chroot enforcement, the server treats the resolved path as a valid file operation request, allowing the attacker to read or manipulate files outside the intended scope.\nThe scope of this vulnerability encompasses both read and write operations. An attacker can leverage this to gain visibility into sensitive system files or, depending on file permissions associated with the FTP service process, execute unauthorized write operations. These write capabilities could facilitate the modification of configuration files or the placement of malicious artifacts to achieve further system compromise.\nThe root cause is a failure to properly implement input validation and path canonicalization. By failing to strip or reject traversal sequences, the application permits arbitrary filesystem access. Because the FTP protocol is inherently utilized for file transfers, the exploitation is straightforward and does not require complex payloads, relying instead on the inherent functionality of the protocol when combined with the lack of directory restrictions.\nThe vulnerability is restricted to the FTP interface of the SGA1000. Any network path that provides access to this FTP service is considered an attack vector. Post-exploitation, an attacker can perform reconnaissance on the server structure, exfiltrate sensitive files, or attempt to destabilize the system via file modification."
}