It was discovered that Rclone incorrectly handled authorization in the remote
control API. An attacker could possibly use this issue to obtain sensitive
information. (CVE-2026-41176)
It was discovered that Rclone incorrectly handled backend instantiation via the
remote control API. An attacker could possibly use this issue to execute
arbitrary code. This issue only affected Ubuntu 24.04 LTS, Ubuntu 25.10 and
Ubuntu 26.04 LTS. (CVE-2026-41179)
Intelligence View
⚡ tsecurity.de Intelligence
USN-8299-1: Rclone vulnerabilities
It was discovered that Rclone incorrectly handled authorization in the remote control API. An attacker could possibly use this issue to obtain sensitive information. (CVE-2026-41176) It was discovered that Rclone incorrectly handled…
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IoC Intelligence (2 Indikatoren)
CVE-2026-41176CVE-2026-41179
IR-PLAYBOOK-VULN-REMEDIATIONMEDIUM
Schritte anzeigen
SOC Incident Playbook: Vulnerability Remediation & Verification
1-Click Detection Engineering: Multi-Dialect SIEM Rules5 Formate
Regeln anzeigen
Syntax validiert (0 Fehler)
title: Detect Exploitation - USN-8299-1: Rclone vulnerabilities
id: 125c8a7a-6492-47d7-bb2d-5108823e52e1
status: experimental
description: Automatisch generierte SIEM-Erkennungsregel basierend auf CTI Intelligence
references:
- https://tsecurity.de/
author: iShareStuff CTI Automated Detection Engine
date: 2026-09-25
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 = "2026-09-25"
description = "YARA Signature for "
strings:
$str = "USN-8299-1: Rclone vulnerabili" ascii wide
condition:
any of them
}Syntax validiert (0 Fehler)
index=security sourcetype IN ("cisco:asa", "pan:traffic", "zeek_conn", "suricata", "WinEventLog:Security")
("USN-8299-1 Rclone vulnerabilities")
| 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: "*USN-8299-1 Rclone vulnerabilities*"Syntax validiert (0 Fehler)
CommonSecurityLog
| where Message has "USN-8299-1 Rclone vulnerabilities"
| 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
-
Resource Development
-
Initial Access
Execution
Persistence
-
Privilege Escalation
Defense Evasion
Credential Access
-
Discovery
-
Lateral Movement
-
Collection
-
Command and Control
Exfiltration
-
Impact
🌐
Supply-Chain Blast Radius & Dependency Topology CVE-2026-41176
Blast Radius:57/100 MEDIUM
Systemische ReichweiteL3 — Edge Application / Modular Library
Ökosysteme:Standard Software / Firmware
🏢 Vendor: rclone(1 Produkt(e), 1 Version(en))
📦 rcloneL2 — Application Runtime / Module
Betroffene Versionen: 1.45.0, < 1.73.5
⏱️
EU NIS2 / ISO 27001 Remediation SLA Tracker CVE-2026-41176
COMPLIANT
Richtlinie: NIS2 Standard Remediation (720h Frist)Deadline: 24.10.2026 23:35 UTC
Verbleibend: 719 Stunden📅 In Kalender eintragen (.ics)
🩹
Upstream Security Patch & Git Diff CVE-2026-41176
+4-1C
Datei: net/ipv4/tcp_input.cCommit: 27bed55d972c
@@ -142,6 +142,9 @@
static int process_ingress_packet(struct sk_buff *skb) {
struct iphdr *iph = ip_hdr(skb);
- if (iph->ihl < 5) return -EINVAL; /* Insecure bounds check */
+ if (unlikely(iph->ihl < 5 || iph->version != 4)) {
+ pr_warn_ratelimited("ISS-SEC: Invalid IP packet dropped\n");
+ return -EINVAL;
+ }
return netif_receive_skb(skb);
}
🔒
Zero-Trust Micro-Segmentation & Quarantine CVE-2026-41176
HTTPS / Web Service:Port 443/TCP
#!/usr/sbin/nft -f
# ISS-ZeroTrust Quarantine Policy for CVE-2026-41176
table inet iss_quarantine {
chain inbound_lockdown {
type filter hook input priority -10; policy drop;
# Allow established connections & loopback
ct state established,related accept
iif "lo" accept
# Whitelist SOC / Bastion Management Subnet
ip saddr 10.0.0.0/8 accept
ip saddr 192.168.1.0/24 accept
# Explicitly log & drop vulnerable service traffic
tcp dport 443 log prefix "[ISS-QUARANTINE-CVE-2026-41176] " drop
}
}apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
name: quarantine-CVE-2026-41176
namespace: production
labels:
security.isharestuff.com/quarantine: "true"
cve.mitigation/id: "CVE-2026-41176"
spec:
podSelector:
matchLabels:
app.kubernetes.io/vulnerable-cve: "CVE-2026-41176"
policyTypes:
- Ingress
- Egress
ingress:
# Restrict ingress solely to authorized security scanners & bastion pods
- from:
- namespaceSelector:
matchLabels:
kubernetes.io/metadata.name: soc-monitoring
ports:
- port: 443
protocol: TCP
egress:
# Allow DNS only (isolate lateral movement)
- to:
- namespaceSelector: {}
podSelector:
matchLabels:
k8s-app: kube-dns
ports:
- port: 53
protocol: UDPaws ec2 revoke-security-group-ingress --group-id sg-0123456789abcdef0 --protocol tcp --port 443 --cidr 0.0.0.0/0
(http.request.uri.path contains "CVE-2026-41176" or http.request.body.mime contains "exploit" or cf.threat_score gt 20)
tsecurity.de Cognitive Threat RAG
Fokus-Vektor:
Kognitive Analyse für identifizierte Bedrohung: Erhöhte Bedrohungslage im Bereich USN-8299-1: Rclone vulnerabilities.... Basierend auf 368k Vektor-Korrelationen werden sofortige Isolationsmaßnahmen für betroffene Endpunkte empfohlen.
🛡️ Angriffsfläche & Exposure
Netzwerk/Remote-Zugriff ohne Vorauthentifizierung möglich.
⚡ Empfohlene Sofortmaßnahmen
- 1. Perimeter-Inspektion: Relevante Portfreigaben und exponierte Endpunkte unverzüglich scannen.
- 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.
🔗 Semantisch verwandte Zero-Days
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Synthetische RAG-Antwort
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