Joomla CMS up to 3.8.7 com_fields input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.2$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Joomla CMS up to 3.8.7. This impacts an unknown function of the component com_fields. Executing a manipulation can lead to input validation. This vulnerability is tracked as CVE-2018-11321. The attack can be launched remotely. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical was found in Joomla CMS up to 3.8.7 (Content Management System). This vulnerability affects an unknown part of the component com_fields. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

An issue was discovered in com_fields in Joomla! Core before 3.8.8. Inadequate filtering allows users authorised to create custom fields to manipulate the filtering options and inject an unvalidated option.

The bug was discovered 05/02/2018. The weakness was disclosed 05/22/2018 (Website). The advisory is shared for download at securityfocus.com. This vulnerability was named CVE-2018-11321 since 05/21/2018. The exploitation appears to be easy. The attack can be initiated remotely. A single authentication is necessary for exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 20 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 110227 (Joomla! < 3.8.8 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 154008 (Joomla! Core - Filter field in com_fields allows remote code execution).

Upgrading to version 3.8.8 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (110227) and SecurityFocus (BID 104271†). The entries VDB-118073, VDB-118074, VDB-118075 and VDB-118076 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.2

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

NVD Base Score: 6.5
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: Input validation
CWE: CWE-20
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: 110227
Nessus Name: Joomla! < 3.8.8 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 54652
OpenVAS Name: Joomla! Core com_fields Remote Code Execution Vulnerability (20180506)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: CMS 3.8.8

Timelineinfo

05/02/2018 🔍
05/21/2018 +19 days 🔍
05/22/2018 +0 days 🔍
05/22/2018 +0 days 🔍
05/22/2018 +0 days 🔍
05/22/2018 +0 days 🔍
05/23/2018 +1 days 🔍
05/31/2018 +8 days 🔍
03/14/2023 +1748 days 🔍

Sourcesinfo

Vendor: joomla.org

Advisory: securityfocus.com⛔
Status: Not defined

CVE: CVE-2018-11321 (🔍)
GCVE (CVE): GCVE-0-2018-11321
GCVE (VulDB): GCVE-100-118072
SecurityFocus: 104271 - Joomla! Core CVE-2018-11321 Remote Code Execution Vulnerability
SecurityTracker: 1040966

See also: 🔍

Entryinfo

Created: 05/23/2018 08:47
Updated: 03/14/2023 15:23
Changes: 05/23/2018 08:47 (75), 05/31/2020 16:59 (4), 03/14/2023 15:23 (4)
Complete: 🔍
Cache ID: 216::103

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