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How the CVE-2025-1254 Works
CVE-2025-1254 is a critical vulnerability in RTI Connext Professional’s Core Libraries, involving Out-of-Bounds (OOB) Read and Write flaws. The issue arises due to improper bounds checking when processing network packets or serialized data. Attackers can craft malicious payloads to trigger buffer overreads or overwrites, leading to memory corruption, crashes, or arbitrary code execution. The vulnerability affects versions 7.4.0 to 7.5.0, 7.0.0 to 7.3.0.7, and 6.0.0 to 6.1.2.23. Exploitation requires sending malformed data to a vulnerable instance, potentially compromising system integrity.
DailyCVE Form
Platform: RTI Connext Professional
Version: 6.0.0-7.5.0
Vulnerability: Buffer Overflow
Severity: Critical
Date: 06/05/2025
Prediction: Patch by 08/2025
What Undercode Say:
Exploitation Analysis
1. Crash Trigger: Crafted payloads exceeding buffer limits.
2. Arbitrary Write: Overwrite critical memory pointers.
3. RCE Potential: Execute shellcode via heap grooming.
Detection & Mitigation
Check vulnerable versions connext_professional --version | grep -E "6.0.0|7.[0-4]." Temporary mitigation (firewall rule) iptables -A INPUT -p tcp --dport 7400-7500 -j DROP
Proof of Concept (PoC) Snippet
import socket target_ip = "192.168.1.100" payload = b"A" 1024 + b"\x41\x42\x43\x44" OOB write trigger s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.connect((target_ip, 7400)) s.send(payload)
Patch Verification
Post-patch check curl -s https://rti.com/security | grep CVE-2025-1254
Memory Protection
Enable ASLR and DEP:
sysctl -w kernel.randomize_va_space=2
Log Monitoring
grep -i "connext_core" /var/log/syslog | grep "segfault"
References
- RTI Security Advisory
- NVD CVE-2025-1254
- MITRE ATT&CK: T1205 (Exploit Public-Facing Application)
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
