I have the following C Socket Server, I was trying to learn about ROP programming so I created this small program, but when I try `pwn cyclic 1025| nc localhost 4444` I receive nothing, I even tried to send 2000, 5000 but with no response. Anyway I can receive the normal 'ok' message when sending the 1024 bytes. I have tried disabling canaries by... Weiterlesen
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Can't Buffer overflow a simple 'recv' function
I have the following C Socket Server, I was trying to learn about ROP programming so I created this small program, but when I try `pwn cyclic 1025| nc localhost 4444` I receive nothing, I even tried to send 2000, 5000 but with no response.…
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title: Detect Exploitation - Can't Buffer overflow a simple 'recv' function
id: 3a0436d0-ca0d-49f2-8c22-d088c3f1f2bd
status: experimental
description: Automatisch generierte SIEM-Erkennungsregel basierend auf CTI Intelligence
references:
- https://tsecurity.de/
author: iShareStuff CTI Automated Detection Engine
date: 2026-09-24
logsource:
category: network_connection
product: any
detection:
selection:
CommandLine|contains:
- 'exploit'
condition: selection
falsepositives:
- Legitime administrative Zugriffe oder Penetrationstests
level: high
tags:
- attack.initial_accessSyntax validiert (0 Fehler)
rule CTI_Threat_Indicator {
meta:
author = "iShareStuff CTI Automated Detection Engine"
date = "2026-09-24"
description = "YARA Signature for "
strings:
$str = "Can\'t Buffer overflow a simple" ascii wide
condition:
any of them
}Syntax validiert (0 Fehler)
index=security sourcetype IN ("cisco:asa", "pan:traffic", "zeek_conn", "suricata", "WinEventLog:Security")
("Cant Buffer overflow a simple recv funct")
| stats count earliest(_time) as first_seen latest(_time) as last_seen by src_ip, dest_ip, dest_host, signature
| eval first_seen=strftime(first_seen, "%Y-%m-%d %H:%M:%S"), last_seen=strftime(last_seen, "%Y-%m-%d %H:%M:%S")
| sort - countSyntax validiert (0 Fehler)
message: "*Cant Buffer overflow a simple recv funct*"Syntax validiert (0 Fehler)
CommonSecurityLog
| where Message has "Cant Buffer overflow a simple recv funct"
| summarize EventCount = count(), FirstSeen = min(TimeGenerated), LastSeen = max(TimeGenerated) by SourceIP, DestinationIP, DestinationPort, Activity
| extend DetectionRule = "iShareStuff-CTI-Compiled"
| sort by EventCount desc🎯
MITRE ATT&CK Matrix Navigator 14 Taktiken
Reconnaissance
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Resource Development
-
Initial Access
Execution
Persistence
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Privilege Escalation
Defense Evasion
Credential Access
-
Discovery
-
Lateral Movement
-
Collection
-
Command and Control
Exfiltration
-
Impact
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Fokus-Vektor:
Kognitive Analyse für identifizierte Bedrohung: Erhöhte Bedrohungslage im Bereich Can't Buffer overflow a simple 'recv' fu.... Basierend auf 368k Vektor-Korrelationen werden sofortige Isolationsmaßnahmen für betroffene Endpunkte empfohlen.
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⚡ Empfohlene Sofortmaßnahmen
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- 2. Patch-Applikation: Hersteller-Hotfix einspielen oder betroffene Daemons in isolierte DMZ-Segmente überführen.
- 3. Telemetrie & EDR-Alerts: Prozessaufrufe und Child-Processes auf anomale Shell-Spawns überwachen.
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