Description

Incorrect privilege assignment vulnerability in TUBITAK BILGEM Software Technologies Research Institute Pardus-software allows Privilege Escalation. This issue affects Pardus-software: before 1.0.5.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "7.8",
  "pubDate": "2026-09-11T15:17:09.667Z",
  "pubdate": "2026-09-11T15:17:09.667Z",
  "executiveSummary": "This vulnerability involves an incorrect privilege assignment flaw within the Pardus-software component developed by TUBITAK BILGEM Software Technologies Research Institute.\nThe vulnerability allows an authenticated or local attacker to elevate their system privileges beyond their authorized level, potentially gaining root or administrative access.\nAffected systems include versions of Pardus-software prior to 1.0.5.\nThe flaw stems from improper access control mechanisms that fail to enforce the principle of least privilege, allowing sub-privileged users to execute commands or modify system configurations that should be restricted.\nThe risk implication is critical, as it undermines the security boundary of the host operating system, enabling full system compromise, data theft, or the installation of persistent malicious payloads.\nExploitation generally requires local access to the system, though the specific attack vector involves manipulating the software's internal handling of escalated operations, thereby bypassing existing security policy constraints.",
  "technicalDetails": "The root cause of this vulnerability lies in the improper implementation of authorization logic within Pardus-software prior to version 1.0.5. The application fails to adequately validate the security context of a requesting user before performing privileged operations.\nIn typical Linux-based privilege escalation scenarios involving management software, the application likely executes tasks with elevated UID/GID (usually root) on behalf of a user without performing sufficient capability checks or sanitizing the input provided to the privileged background process.\nThe attack flow begins with an attacker identifying a sub-privileged user account. The attacker interacts with Pardus-software interfaces, such as CLI tools or D-Bus services, which communicate with the vulnerable backend daemon or executable.\nBecause the software fails to verify the caller's authorization token or security context correctly, the backend service assumes the request originated from a trusted, authorized source. The software then performs operations such as modifying restricted configuration files, installing malicious packages, or altering system service states.\nBy manipulating the parameters passed to the vulnerable function, an attacker can coerce the process into performing arbitrary actions, such as appending entries to sensitive configuration files (e.g., /etc/passwd or /etc/sudoers) or executing shell commands with elevated privileges.\nThe vulnerable component is likely the internal service component responsible for administrative tasks within Pardus-software. Authentication requirements are minimal if the local socket or service is exposed to the local user group without strict Discretionary Access Control (DAC) or Mandatory Access Control (MAC) enforcement.\nPost-exploitation, the attacker achieves full system compromise, allowing them to bypass file system permissions, exfiltrate sensitive data, or disable security auditing tools. The vulnerability persists until the software is updated to version 1.0.5 or later, which presumably introduces proper UID validation and secure IPC communication mechanisms."
}