PostgreSQL up to 10.0 link following

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.
5.9$0-$5k0.00

A vulnerability was found in PostgreSQL up to 10.0 (Database Software) and classified as critical. Affected by this issue is an unknown functionality. The manipulation with an unknown input leads to a link following vulnerability. Using CWE to declare the problem leads to CWE-59. The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource. Impacted is confidentiality, integrity, and availability. CVE summarizes:

PostgreSQL 10.x before 10.1, 9.6.x before 9.6.6, 9.5.x before 9.5.10, 9.4.x before 9.4.15, 9.3.x before 9.3.20, and 9.2.x before 9.2.24 runs under a non-root operating system account, and database superusers have effective ability to run arbitrary code under that system account. PostgreSQL provides a script for starting the database server during system boot. Packages of PostgreSQL for many operating systems provide their own, packager-authored startup implementations. Several implementations use a log file name that the database superuser can replace with a symbolic link. As root, they open(), chmod() and/or chown() this log file name. This often suffices for the database superuser to escalate to root privileges when root starts the server.

The bug was discovered 11/09/2017. The weakness was released 11/22/2017 (Website). The advisory is shared for download at securityfocus.com. This vulnerability is handled as CVE-2017-12172 since 08/01/2017. The attack needs to be approached locally. The successful exploitation needs a simple authentication. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 104574 (PostgreSQL 9.2.x < 9.2.24 / 9.3.x < 9.3.20 / 9.4.x < 9.4.15 / 9.5.x < 9.5.10 / 9.6.x < 9.6.6 / 10.x < 10.1 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Databases and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 277050 (Fedora Security Update for postgresql (FEDORA-2017-1f1fdab532)).

Upgrading to version 9.2.24, 9.3.20, 9.4.15, 9.5.10, 9.6.6 or 10.1 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 (104574). Entries connected to this vulnerability are available at 109800 and 109801.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

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

CVSSv3info

VulDB Meta Base Score: 6.0
VulDB Meta Temp Score: 5.9

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.7
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Link following
CWE: CWE-59
ATT&CK: Unknown

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Dayunlockunlockunlockunlock
Todayunlockunlockunlockunlock

Nessus ID: 104574
Nessus Name: PostgreSQL 9.2.x < 9.2.24 / 9.3.x < 9.3.20 / 9.4.x < 9.4.15 / 9.5.x < 9.5.10 / 9.6.x < 9.6.6 / 10.x < 10.1 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 60442
OpenVAS Name: RedHat Update for postgresql RHSA-2017:3402-01
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: PostgreSQL 9.2.24/9.3.20/9.4.15/9.5.10/9.6.6/10.1

Timelineinfo

08/01/2017 🔍
11/09/2017 +100 days 🔍
11/09/2017 +0 days 🔍
11/09/2017 +0 days 🔍
11/15/2017 +6 days 🔍
11/22/2017 +7 days 🔍
11/22/2017 +0 days 🔍
11/23/2017 +1 days 🔍
01/11/2023 +1875 days 🔍

Sourcesinfo

Product: postgresql.org

Advisory: RHSA-2017:3402⛔
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-12172 (🔍)
SecurityTracker: 1039752
SecurityFocus: 101949 - PostgreSQL CVE-2017-12172 Remote Privilege Escalation Vulnerabilities

See also: 🔍

Entryinfo

Created: 11/23/2017 07:40
Updated: 01/11/2023 09:02
Changes: 11/23/2017 07:40 (72), 12/09/2019 14:17 (6), 01/24/2021 22:37 (2), 01/11/2023 09:02 (3)
Complete: 🔍

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Are you interested in using VulDB?

Download the whitepaper to learn more about our service!