Joomla CMS up to 3.8.1 com_fields information disclosure

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Joomla CMS up to 3.8.1. Affected by this issue is some unknown functionality of the component com_fields. Executing a manipulation can lead to information disclosure. The identification of this vulnerability is CVE-2017-16633. The attack may be launched remotely. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Joomla CMS up to 3.8.1 (Content Management System) and classified as critical. This vulnerability affects an unknown functionality of the component com_fields. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

In Joomla! before 3.8.2, a logic bug in com_fields exposed read-only information about a site's custom fields to unauthorized users.

The bug was discovered 05/17/2017. The weakness was shared 11/10/2017 (Website). The advisory is shared for download at developer.joomla.org. This vulnerability was named CVE-2017-16633 since 11/06/2017. The exploitation appears to be easy. The attack can be initiated remotely. The successful exploitation needs a single authentication. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1592.

The vulnerability was handled as a non-public zero-day exploit for at least 174 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 104478 (Joomla! 1.5.0 < 3.8.2 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CGI abuses and running in the context r. The commercial vulnerability scanner Qualys is able to test this issue with plugin 154013 (Joomla! Information Disclosure: com_fields exposed read-only information about a site's custom fields to unauthorized users).

Upgrading to version 3.8.2 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 databases at Tenable (104478) and SecurityFocus (BID 101702†). The entry VDB-109265 is related to this item. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.3
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 104478
Nessus Name: Joomla! 1.5.0 < 3.8.2 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 867531
OpenVAS Name: Joomla! Core com_fields Information Disclosure Vulnerability Nov17
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: CMS 3.8.2

Timelineinfo

05/17/2017 🔍
11/06/2017 +173 days 🔍
11/07/2017 +1 days 🔍
11/07/2017 +0 days 🔍
11/09/2017 +2 days 🔍
11/09/2017 +0 days 🔍
11/10/2017 +1 days 🔍
11/10/2017 +0 days 🔍
01/23/2021 +1170 days 🔍

Sourcesinfo

Vendor: joomla.org

Advisory: developer.joomla.org
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-16633 (🔍)
GCVE (CVE): GCVE-0-2017-16633
GCVE (VulDB): GCVE-100-109264
SecurityFocus: 101702 - Joomla! CVE-2017-16633 Information Disclosure Vulnerability
SecurityTracker: 1039757

See also: 🔍

Entryinfo

Created: 11/10/2017 12:35
Updated: 01/23/2021 09:49
Changes: 11/10/2017 12:35 (76), 05/31/2020 16:34 (5), 01/23/2021 09:49 (3)
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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