CVE-2025-8962: Fabian Hostel Management Buffer Overflow

CVE-2025-8962 Overview

CVE-2025-8962 is a stack-based buffer overflow vulnerability in code-projects Hostel Management System 1.0. The flaw resides in the Login Form component within the hostel_manage.exe binary. Attackers can trigger the overflow by manipulating the uname argument during authentication. Exploitation requires local access to the affected system and low privileges.

The vulnerability is categorized under [CWE-119] (Improper Restriction of Operations within the Bounds of a Memory Buffer). Public disclosure of the exploit technique has occurred, though no active exploitation has been reported by CISA. The affected product is a small-scale application distributed through code-projects.org.

Critical Impact

A local attacker with valid low-privilege access can trigger a stack-based buffer overflow via the login username field, potentially corrupting memory in hostel_manage.exe.

Affected Products

• Fabian Hostel Management System 1.0
• hostel_manage.exe binary (Login Form component)
• Distributions sourced from code-projects.org

Discovery Timeline

• 2025-08-14 - CVE-2025-8962 published to NVD
• 2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-8962

Vulnerability Analysis

The vulnerability exists in an unspecified function of hostel_manage.exe that handles input from the Login Form. When the application processes the uname argument submitted through the login interface, it fails to enforce boundary checks on the destination buffer. Supplying an overly long username triggers a stack-based buffer overflow.

Stack-based overflows in login handlers commonly allow attackers to overwrite adjacent stack variables, saved return addresses, or exception handlers. This can lead to control-flow hijacking depending on the compiled binary's protections. The exploit has been publicly disclosed, increasing the likelihood of weaponization against unpatched deployments.

Root Cause

The root cause is missing input length validation on the uname parameter before it is copied into a fixed-size stack buffer. Standard C runtime functions such as strcpy or gets are frequent culprits in this class of defect. The application does not enforce bounds on user-supplied credentials at the input boundary.

Attack Vector

Exploitation requires local access to the machine running hostel_manage.exe. An authenticated user with low privileges submits a crafted username string through the Login Form, exceeding the buffer capacity. The overflow occurs prior to authentication completing, giving the attacker influence over memory before credentials are validated.

Because no verified exploit code is publicly indexed in Exploit-DB, defenders should review the VulDB #319957 Details and the Yuque Security Document for indicator context.

Detection Methods for CVE-2025-8962

Indicators of Compromise

• Unexpected crashes or Windows Error Reporting entries referencing hostel_manage.exe
• Application logs showing abnormally long values submitted to the uname field
• Presence of hostel_manage.exe version 1.0 on endpoints not authorized to run development or coursework software

Detection Strategies

• Monitor process termination events for hostel_manage.exe with exit codes indicative of access violations, such as 0xC0000005
• Inspect endpoint telemetry for child processes spawned by hostel_manage.exe, which would be anomalous during a login sequence
• Baseline the expected memory footprint of the application and alert on deviations that suggest shellcode execution

Monitoring Recommendations

• Enable Windows Event Log auditing for process creation (Event ID 4688) targeting the application binary
• Forward endpoint telemetry to a centralized log platform for correlation of crashes with authentication attempts
• Track user accounts interacting with the application to identify unusual login activity from low-privilege users

How to Mitigate CVE-2025-8962

Immediate Actions Required

• Restrict execution of hostel_manage.exe to authorized users through application control policies
• Remove the Hostel Management System 1.0 from production or shared environments where untrusted users have local access
• Enforce least-privilege on any Windows workstation running the affected binary

Patch Information

No vendor-supplied patch is currently referenced in the advisory sources. Users should monitor the Code Projects Overview and the VulDB #319957 Report for future updates or corrected releases.

Workarounds

• Block execution of hostel_manage.exe using Windows Defender Application Control or AppLocker rules
• Isolate systems running the affected software from multi-user access to eliminate the local attack path
• Replace the application with an alternative that enforces input length validation on authentication fields

# Example AppLocker rule to block the vulnerable binary
New-AppLockerPolicy -RuleType Path -User Everyone `
  -RuleNamePrefix "Block-CVE-2025-8962" `
  -Action Deny `
  -Path "%PROGRAMFILES%\HostelManagementSystem\hostel_manage.exe"