Postfix up to 2.11.9/3.0.9/3.1.5/3.2.1 Berkeley DB access control

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.
5.8	$0-$5k	0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Postfix up to 2.11.9/3.0.9/3.1.5/3.2.1. Impacted is an unknown function of the component Berkeley DB. Such manipulation leads to access control. This vulnerability is traded as CVE-2017-10140. An attack has to be approached locally. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Postfix up to 2.11.9/3.0.9/3.1.5/3.2.1. Affected by this issue is an unknown functionality of the component Berkeley DB. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Postfix before 2.11.10, 3.0.x before 3.0.10, 3.1.x before 3.1.6, and 3.2.x before 3.2.2 might allow local users to gain privileges by leveraging undocumented functionality in Berkeley DB 2.x and later, related to reading settings from DB_CONFIG in the current directory.

The bug was discovered 08/12/2017. The weakness was shared 04/16/2018 as not defined mailinglist post (oss-sec). The advisory is shared for download at seclists.org. This vulnerability is handled as CVE-2017-10140 since 06/21/2017. The attack needs to be approached locally. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068.

The vulnerability was handled as a non-public zero-day exploit for at least 101 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 104739 (Ubuntu 14.04 LTS / 16.04 LTS / 17.04 : db5.3 vulnerability (USN-3489-1)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 196980 (Ubuntu Security Notification for Db5.3 Vulnerability (USN-3489-1)).

Upgrading to version 2.11.10, 3.0.10, 3.1.6 or 3.2.2 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (104739). The entry VDB-158092 is related to this item. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Name

• Postfix

Version

• 2.11.0
• 2.11.1
• 2.11.2
• 2.11.3
• 2.11.4
• 2.11.5
• 2.11.6
• 2.11.7
• 2.11.8
• 2.11.9
• 3.0.0
• 3.0.1
• 3.0.2
• 3.0.3
• 3.0.4
• 3.0.5
• 3.0.6
• 3.0.7
• 3.0.8
• 3.0.9
• 3.1.0
• 3.1.1
• 3.1.2
• 3.1.3
• 3.1.4
• 3.1.5
• 3.2.0
• 3.2.1

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

VulDB Base Score: 4.0
VulDB Temp Score: 3.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

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: 🔍

Physical: Partially
Local: Yes
Remote: No

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: 104739
Nessus Name: Ubuntu 14.04 LTS / 16.04 LTS / 17.04 : db5.3 vulnerability (USN-3489-1)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 63845
OpenVAS Name: Debian Lts Announce DLA 1136-1 ([SECURITY] [DLA 1136-1] db4.8 security update)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Postfix 2.11.10/3.0.10/3.1.6/3.2.2

Timelineinfo

06/21/2017 🔍
08/12/2017 +52 days 🔍
11/21/2017 +101 days 🔍
11/22/2017 +1 days 🔍
04/16/2018 +144 days 🔍
04/16/2018 +0 days 🔍
04/17/2018 +1 days 🔍
02/28/2023 +1778 days 🔍

Sourcesinfo

Advisory: USN-3489-1
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-10140 (🔍)
GCVE (CVE): GCVE-0-2017-10140
GCVE (VulDB): GCVE-100-116264
See also: 🔍

Entryinfo

Created: 04/17/2018 09:47
Updated: 02/28/2023 09:53
Changes: 04/17/2018 09:47 (75), 01/25/2020 13:44 (1), 02/28/2023 09:51 (4), 02/28/2023 09:53 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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