How the Mentioned CVE Works:
The CVE-2025-XXXX vulnerability in XPixelGroup BasicSR (up to version 1.4.2) allows for command injection in specific scenarios. The issue arises when the application executes the command `scontrol show hostname` while processing the `SLURM_NODELIST` environment variable. An attacker can craft a malicious `SLURM_NODELIST` value containing arbitrary commands, which are then executed by the system. This could lead to local code execution, potentially compromising the system’s integrity and confidentiality. The vulnerability is classified as moderate due to the requirement of a contrived environment and local access for exploitation.
DailyCVE Form:
Platform: XPixelGroup BasicSR
Version: 1.4.2 and prior
Vulnerability: Command Injection
Severity: Moderate
Date: Mar 12, 2025
What Undercode Say:
Exploitation:
- Crafting Malicious Input: An attacker can set the `SLURM_NODELIST` environment variable to include malicious commands.
Example:
export SLURM_NODELIST="$(malicious_command)"
2. Triggering the Vulnerability: When the application runs scontrol show hostname, the injected command is executed.
Example:
scontrol show hostname
Protection:
- Input Validation: Sanitize and validate the `SLURM_NODELIST` environment variable to prevent command injection.
Example:
import re
safe_input = re.sub(r"[bash]", "", os.getenv("SLURM_NODELIST"))
2. Use Safe Functions: Avoid using shell commands directly. Use safer alternatives like `subprocess` with shell=False.
Example:
import subprocess subprocess.run([bash], shell=False)
3. Update Software: Upgrade to a patched version of XPixelGroup BasicSR if available.
Detection:
- Log Monitoring: Check logs for unusual commands executed via
scontrol show hostname.
Example:
grep "scontrol show hostname" /var/log/syslog
2. Environment Variable Auditing: Regularly audit environment variables for suspicious values.
Example:
printenv | grep SLURM_NODELIST
Mitigation Commands:
- Restrict Environment Variables: Limit the scope of environment variables to trusted users.
Example:
chmod 600 /etc/environment
2. Disable Vulnerable Features: Temporarily disable the use of `scontrol show hostname` if not critical.
Example:
mv /usr/bin/scontrol /usr/bin/scontrol_disabled
Code Example for Mitigation:
import os
import subprocess
def safe_hostname_check():
node_list = os.getenv("SLURM_NODELIST", "")
if not re.match(r"^[bash]+$", node_list):
raise ValueError("Invalid SLURM_NODELIST value")
subprocess.run([bash], shell=False)
Analytics:
- Affected Systems: Systems running XPixelGroup BasicSR versions 1.4.2 and prior.
- Attack Vector: Local access with crafted environment variables.
- Impact: Local code execution, potential privilege escalation.
- Patch Status: No patch available as of Mar 13, 2025.
References:
- GitHub Advisory Database: [bash]
- National Vulnerability Database: [bash]
By following these steps, users can mitigate the risk of exploitation and protect their systems from this command injection vulnerability.
References:
Reported By: https://github.com/advisories/GHSA-86w8-vhw6-q9qq
Extra Source Hub:
Undercode
