CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.0	$0-$5k	0.00

A vulnerability, which was classified as critical, was found in Wouter Verhelst nbd. This affects an unknown function of the component Access Restriction. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-264. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

nbd-server in Network Block Device (nbd) before 3.5 does not properly check IP addresses, which might allow remote attackers to bypass intended access restrictions via an IP address that has a partial match in the authfile configuration file.

The weakness was disclosed 12/07/2013 (Website). It is possible to read the advisory at sourceforge.net. This vulnerability is uniquely identified as CVE-2013-6410 since 11/04/2013. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 71141 (Debian DSA-2806-1 : nbd - privilege escalation), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 196178 (Ubuntu Security Notification for Nbd Vulnerabilities (USN-2676-1)).

Upgrading to version 3.2 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (89331) and Tenable (71141). The entries 75593 and 75600 are pretty similar.

Productinfo

Vendor

• Wouter Verhelst

Name

• nbd

Version

• 2.7.5
• 2.8.0
• 2.8.2
• 2.8.4
• 2.8.5
• 2.8.6
• 2.8.7
• 2.9.0
• 2.9.1
• 2.9.2
• 2.9.3
• 2.9.4
• 2.9.5
• 2.9.6
• 2.9.7
• 2.9.8
• 2.9.9
• 2.9.10
• 2.9.11
• 2.9.12
• 2.9.13
• 2.9.14
• 2.9.15
• 2.9.16
• 2.9.17
• 2.9.18
• 2.9.19
• 2.9.20
• 2.9.21
• 2.9.22
• 2.9.23
• 2.9.24
• 2.9.25
• 3.0
• 3.1
• 3.1.1
• 3.2
• 3.3
• 3.4

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Nessus ID: 71141
Nessus Name: Debian DSA-2806-1 : nbd - privilege escalation
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 892806
OpenVAS Name: Debian Security Advisory DSA 2806-1 (nbd - privilege escalation
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: nbd 3.2

Timelineinfo

11/04/2013 🔍
11/28/2013 +24 days 🔍
12/01/2013 +3 days 🔍
12/07/2013 +6 days 🔍
12/07/2013 +0 days 🔍
12/23/2013 +16 days 🔍
03/24/2015 +456 days 🔍
01/11/2022 +2485 days 🔍

Sourcesinfo

Advisory: DSA-2806
Status: Not defined

CVE: CVE-2013-6410 (🔍)
OVAL: 🔍

X-Force: 89331
Vulnerability Center: 42693 - Network Block Device before 3.5 Remote Security Bypass Vulnerability via Crafted IP Address, High
SecurityFocus: 64002

See also: 🔍

Entryinfo

Created: 03/24/2015 15:54
Updated: 01/11/2022 09:35
Changes: 03/24/2015 15:54 (68), 05/18/2017 17:13 (2), 01/11/2022 09:32 (3), 01/11/2022 09:35 (2)
Complete: 🔍

Discussion

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