| Server IP : 20.75.53.88 / Your IP : 216.73.217.72 [ Web Server : Apache System : Linux VMRALP-3 4.4.0-256-generic #290~14.04.1-Ubuntu SMP Thu Jun 20 09:24:50 UTC 2024 x86_64 User : www-data ( 33) PHP Version : 5.5.9-1ubuntu4.29+esm15 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority, Domains : 3 Domains MySQL : ON | cURL : OFF | WGET : ON | Perl : ON | Python : ON | Sudo : ON | Pkexec : ON Directory : /proc/13610/cwd/CVE-2026-41651-v2/ |
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<div align="center"> # ๐จ CVE-2026-41651 โ Pack2TheRoot <img width="1200" height="630" alt="Pack2TheRoot" src="https://github.com/user-attachments/assets/9657dff4-a4da-4193-a588-41f6ffabaa75" /> ### Privilege Escalation Vulnerability in PackageKit (TOCTOU Race Condition)     </div> --- ## ๐ Overview **CVE-2026-41651** is a local privilege escalation vulnerability affecting the **PackageKit** system service used in various Linux distributions. The vulnerability is caused by a **Time-of-Check to Time-of-Use (TOCTOU) race condition**, which can be abused to manipulate package installation workflows and escalate privileges to root. --- ## โ ๏ธ Impact If successfully exploited, this vulnerability may allow a local unprivileged user to: <img width="1920" height="791" alt="CVE-2026-41651" src="https://github.com/user-attachments/assets/1a698457-06df-46ce-9452-6846ac22b0f8" /> - Gain **root-level privileges** - Execute **arbitrary package installation scripts (RPM scriptlets)** - Modify system-level configurations - Compromise system integrity and confidentiality > ๐ง Note: This vulnerability requires **local access** and cannot be exploited remotely. --- ## ๐งฉ Affected Versions - PackageKit **1.0.2 โ 1.3.4** --- ## ๐ง Fixed Version - PackageKit **1.3.5** --- ## ๐งฌ Technical Description The issue originates from an unsafe handling of transactional state within PackageKit. A race condition occurs between: 1. **Validation phase (check permissions / flags)** 2. **Execution phase (perform privileged operation)** During this window, an attacker may manipulate system state, leading to unintended privileged execution. --- ## ๐ก๏ธ Mitigation To reduce risk: - Upgrade PackageKit to **version 1.3.5 or later** - Apply security updates from your Linux distribution vendor - Restrict local user access on multi-user systems - Monitor package management activity logs --- ## ๐งพ References - Vendor Security Advisory (PackageKit) - Linux Distribution Security Updates - Common Vulnerabilities and Exposures: CVE-2026-41651 --- ## ๐ Risk Summary | Attribute | Value | |------------------|------------------------------| | Attack Vector | Local | | Complexity | Medium | | Privileges Req. | Low | | Impact | High (System Compromise) | --- ## โก Disclaimer This repository is for **educational and defensive security purposes only**. No exploit code or malicious instructions are included. --- ## ๐ง Stay Secure Always keep systems updated and review privilege escalation risks in system services regularly.