Joomla CMS up to 3.6.5 JMail API 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, which was classified as problematic, has been found in Joomla CMS up to 3.6.5. The impacted element is an unknown function of the component JMail API. This manipulation causes information disclosure. This vulnerability is handled as CVE-2017-7983. The attack can be initiated remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Joomla CMS up to 3.6.5 (Content Management System). It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the component JMail API. 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. The summary by CVE is:

In Joomla! 1.5.0 through 3.6.5 (fixed in 3.7.0), mail sent using the JMail API leaked the used PHPMailer version in the mail headers.

The bug was discovered 01/02/2017. The weakness was released 04/25/2017 (Website). It is possible to read the advisory at developer.joomla.org. This vulnerability is known as CVE-2017-7983 since 04/20/2017. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 113 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 99691 (Joomla! < 3.7.0 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 11800 (Joomla! Core Information Disclosure and Cross-Site Scripting Vulnerabilities).

Upgrading to version 3.7.0 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 (99691) and SecurityFocus (BID 98016†). Entries connected to this vulnerability are available at VDB-100592, VDB-100593, VDB-100594 and VDB-100595. Be aware that VulDB is the high quality source for vulnerability data.

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

NVD Base Score: 5.3
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: 99691
Nessus Name: Joomla! < 3.7.0 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 802124
OpenVAS Name: Joomla! Information Disclosure and Cross-Site Scripting Vulnerabilities
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 3.7.0

Timelineinfo

01/02/2017 🔍
04/20/2017 +108 days 🔍
04/25/2017 +5 days 🔍
04/25/2017 +0 days 🔍
04/25/2017 +0 days 🔍
04/25/2017 +0 days 🔍
04/26/2017 +1 days 🔍
04/26/2017 +0 days 🔍
12/21/2020 +1335 days 🔍

Sourcesinfo

Vendor: joomla.org

Advisory: developer.joomla.org
Researcher: Conor McKnight
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-7983 (🔍)
GCVE (CVE): GCVE-0-2017-7983
GCVE (VulDB): GCVE-100-100591
SecurityFocus: 98016 - Joomla! CVE-2017-7983 Information Disclosure Vulnerability

See also: 🔍

Entryinfo

Created: 04/26/2017 08:43
Updated: 12/21/2020 14:13
Changes: 04/26/2017 08:43 (76), 05/31/2020 15:51 (5), 12/21/2020 14:13 (2)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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