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CVE-2026-17173 is a vulnerability affecting IBM Db2 Mirror for i versions 7.4, 7.5, and 7.6. The core of the issue lies in the software’s improper validation of file paths, which can allow a remote authenticated attacker to obtain sensitive information. This type of flaw is typically rooted in the application’s failure to properly sanitize user-supplied input that is used to construct file system paths.
An attacker who has already authenticated to the Db2 Mirror for i system can craft malicious input designed to manipulate file path references. By exploiting the improper validation, the attacker can potentially read files outside of the intended directory, a classic path traversal or directory traversal attack. The vulnerability is present in the Angular-based GUI component of the Db2 Mirror for i software, which processes data bindings to user-generated content on security-sensitive attributes. This lack of sufficient sanitization in the Angular internationalization (i18n) pipeline allows an authenticated user to bypass security restrictions. In practical terms, this could allow an attacker to access configuration files, source code, or other sensitive data stored on the server’s file system. The attack requires user interaction, meaning a victim user might need to click a malicious link or perform an action that triggers the crafted request. While the attack complexity is low, the need for authentication and user interaction limits the severity. However, once exploited, the data manipulation impact is considered significant. IBM has released security updates to address this issue.
DailyCVE Form:
Platform: IBM Db2 Mirror for i
Version: 7.4, 7.5, 7.6
Vulnerability: Path Traversal
Severity: Medium
date: 2026-08-14
Prediction: 2026-08-20 (Patch available)
What Undercode Say:
The vulnerability is related to the Angular framework’s i18n attribute bindings. The patch involves upgrading the Angular version used by IBM Db2 Mirror for i.
Check for available PTF packages for Db2 Mirror for i Note: These commands are for system administration on IBM i WRKPTFGRP SF99951 For IBM i 7.5 WRKPTFGRP SF99961 For IBM i 7.6
Alternative method to view installed PTFs DSPPTF
Exploit: (Educational Purposes!)
An authenticated attacker could craft a request with path traversal sequences (e.g., ../) in a file path parameter.
GET /db2mirror/api/files?path=../../../../etc/passwd HTTP/1.1 Host: vulnerable-ibm-db2-mirror.example.com Cookie: session=authenticated_session_cookie
Protection:
- Apply Security Patches: Install the latest PTF (Program Temporary Fix) packages from IBM for your specific Db2 Mirror for i release. The PTF numbers are SJ10109 for 7.4, S100110 for 7.5, and SJ10111 for 7.6.
- Update Angular: The fix involves upgrading the Angular framework used by the GUI to version 21.0.8.
- Input Validation: Implement strict server-side validation for all user-supplied file paths, rejecting any input containing directory traversal sequences.
Impact:
Successful exploitation could lead to the unauthorized disclosure of sensitive information, such as system files, application configurations, and database credentials.
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Sources:
Reported By: nvd.nist.gov
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