CVE-2023-6729

🎯 CVE-2023-6729 🇪🇺 EUVD

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CVE-2023-6729 | Nokia SR OS routers allow read-write access to the entire file system via SFTP or SCP for users configured with "access console." Consequently, a low privilege authenticated user with "access console" can read or replace the router configuration file as well as other files stored in the Compact Flash or SD card without using CLI commands. This type of attack can lead to a compromise or denial of service of the router after the system is rebooted.

Nokia SR OS routers allow read-write access to the entire file system via SFTP or SCP for users configured with "access console." Consequently, a low privilege authenticated user with "access console" can read or replace the router configuration file as well as other files stored in the Compact Flash or SD card without using CLI commands. This type of attack can lead to a compromise or denial of service of the router after the system is rebooted.

Klassifikation & Betroffenheit:

CWE-732 Nokia SR OS (7250 IXR, 7450 ESS, 7750 SR, 7950 IXR, VSR), 7705 SAR OS, 7210 SAS OS All supported releases prior to Release 24

Incorrect Permission Assignment for Critical Resource 🎯 High

The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.

🛡️ Empfohlene Mitigation: When using a critical resource such as a configuration file, check to see if the resource has insecure permissions (such as being modifiable by any regular user) [REF-62], and generate an error or even exit the software if there is a possibility that the resource could have been modified by an unauthorized party.

Vollständige Definition bei MITRE ➔

⚔️ Typische Angriffsmuster (CAPEC):

CAPEC-1 · Accessing Functionality Not Properly Con… (High) CAPEC-17 · Using Malicious Files (Very High) CAPEC-60 · Reusing Session IDs (aka Session Replay) (High) CAPEC-122 · Privilege Abuse (Medium) CAPEC-127 · Directory Indexing (Medium) CAPEC-180 · Exploiting Incorrectly Configured Access… (Medium) CAPEC-206 · Signing Malicious Code (Very High) CAPEC-234 · Hijacking a privileged process (Medium)

🎯 ATT&CK-Techniken (Kill-Chain-Verhalten):

T1574.010 · Hijack Execution Flow: ServicesFil… T1574.005 · Hijack Execution Flow: Executable … T1134.001 · Access Token Manipulation:Token Im… T1550.004 · Use Alternate Authentication Mater… T1548 · Abuse Elevation Control Mechanism T1083 · File and Directory Discovery

🧩 Ähnliche Schwachstellen (Hersteller/Klasse/Score-Band):

CVE-2023-49564 8.8 CVE-2018-11116 8.8 CVE-2018-7311 8.8 CVE-2023-49565 8.4 CVE-2025-24938 8.4

📚 Referenzen & Quellen:

🇪🇺 Original-Eintrag (ENISA EUVD) 🇺🇸 NVD-Eintrag

🔗 www.nokia.com/about-us/security-and-privacy/product-sec…

Ausnutzungs-Zeitleiste:

Reserviert 2023

Veröffentlicht 10/2024

Heute 01.11.

CVSS-Vektor-Analyse: 7.3

AV · Angriffsvektor Lokal

AC · Komplexität Gering

PR · Privilegien Gering

UI · Interaktion Erforderlich

S · Scope Unverändert

C · Vertraulichkeit Hoch

I · Integrität Hoch

A · Verfügbarkeit Hoch

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Veröffentlicht:17.10.2024

Aktualisiert:17.10.2024 14:59

Assigner (CNA):Nokia

EUVD-ID:EUVD-2023-58943

CWE-732 ✓ Offizieller Patch / Advisory verfügbar

💡 Gegenmaßnahme: Sicherheits-Update des Herstellers zeitnah einspielen und Netzwerksegmentierung prüfen.

Tier	CVEs	Anteil
≥90 %	753	0,2 %
≥50 %	3.301	0,9 %
≥10 %	22.006	5,7 %
<10 %	360.246	93,3 %

7.3 HIGH

EPSS

0.2%

CVE-2023-6729 💻 Lokal 🔑 Geringe Nutzerrechte nötig

Nokia

CVE-2023-6729 | Nokia SR OS routers allow read-write access to the entire file system via SFTP or SCP for users configured with "access console." Consequently, a low privilege authenticated user with "access console" can read or replace the router configuration file as well as other files stored in the Compact Flash or SD card without using CLI commands. This type of attack can lead to a compromise or denial of service of the router after the system is rebooted.

CWE-732 ✓ Offizieller Patch / Advisory verfügbar

💡 Gegenmaßnahme: Sicherheits-Update des Herstellers zeitnah einspielen und Netzwerksegmentierung prüfen.

vor 2 Jahren ↻ vor 2 Jahren

🛡️ Details ➔

Zero-Day & Vulnerability Intelligence Hub