Listen to this Post
How CVE-2025-1253 Works
The vulnerability in RTI Connext Professional (Core Libraries) stems from improper bounds checking when handling input data, leading to a classic buffer overflow. Attackers can exploit this flaw by sending crafted payloads that exceed the allocated buffer size, corrupting adjacent memory structures. This allows arbitrary code execution under the context of the application, potentially compromising the entire system. The affected versions include Connext Professional 7.4.0 to 7.5.0, 7.0.0 to 7.3.0.7, and 4.5 to 6.1.2.23. The CVSS 4.0 score reflects its critical severity due to low attack complexity and high impact on confidentiality, integrity, and availability.
DailyCVE Form
Platform: RTI Connext Professional
Version: 7.4.0-7.5.0, 7.0.0-7.3.0.7, 4.5-6.1.2.23
Vulnerability: Buffer Overflow
Severity: Critical
Date: 06/05/2025
Prediction: Patch expected by 07/15/2025
What Undercode Say:
Exploitation Analysis
- Crash Trigger – Sending oversized payloads to vulnerable endpoints.
- EIP Control – Overwriting return addresses to redirect execution.
- ROP Chains – Crafting payloads for code execution bypassing DEP/ASLR.
Protection Measures
1. Input Validation – Enforce strict bounds checking.
- Memory Protections – Enable DEP, ASLR, and stack canaries.
3. Patch Deployment – Apply vendor updates immediately.
Exploit Code Snippet (PoC)
include <stdio.h>
include <string.h>
void vulnerable_function(char input) {
char buffer[bash];
strcpy(buffer, input); // No bounds check
}
int main(int argc, char argv) {
vulnerable_function(argv[bash]);
return 0;
}
Mitigation Commands
Enable ASLR echo 2 | sudo tee /proc/sys/kernel/randomize_va_space Check for vulnerable versions rtiddspro --version | grep -E "7.[0-4]|6.[0-1]|4.5" Apply workaround (if patch unavailable) iptables -A INPUT -p tcp --dport 7400 -m length ! --length 0:512 -j DROP
Detection Script
import socket
def check_vulnerability(ip, port):
payload = "A" 1024
try:
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((ip, port))
s.send(payload.encode())
response = s.recv(1024)
if not response:
print("[!] Service crashed - possibly vulnerable")
except:
print("[+] Target may be vulnerable")
References
- Vendor Advisory: RTI Security Bulletin
- CVE Details: NVD Entry
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
