Serendipity up to 2.0.5 functions_installer.inc.php include dbType access control

CVSS Meta Temp Score
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CTI Interest Score
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8.4$0-$5k0.00

A vulnerability was found in Serendipity up to 2.0.5 (Content Management System). It has been rated as critical. This issue affects the function include of the file include/functions_installer.inc.php. The manipulation of the argument dbType with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

include/functions_installer.inc.php in Serendipity through 2.0.5 is vulnerable to File Inclusion and a possible Code Execution attack during a first-time installation because it fails to sanitize the dbType POST parameter before adding it to an include() call in the bundled-libs/serendipity_generateFTPChecksums.php file.

The bug was discovered 12/20/2016. The weakness was presented 12/30/2016 (Website). The advisory is shared at securityfocus.com. The identification of this vulnerability is CVE-2016-10082 since 12/30/2016. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 10 days. During that time the estimated underground price was around $0-$5k. By approaching the search of inurl:include/functions_installer.inc.php it is possible to find vulnerable targets with Google Hacking. The vulnerability scanner Nessus provides a plugin with the ID 100789 (Serendipity < 2.1.1 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 11756 (Serendipity Multiple File Include and Cross-Site Scripting Vulnerabilities).

Upgrading eliminates this vulnerability. A possible mitigation has been published 4 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (100789) and SecurityFocus (BID 95165†). See VDB-94681, VDB-94682, VDB-95344 and VDB-95345 for similar entries.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 100789
Nessus Name: Serendipity < 2.1.1 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
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Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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Patch: github.com

Timelineinfo

12/20/2016 🔍
12/30/2016 +10 days 🔍
12/30/2016 +0 days 🔍
12/30/2016 +0 days 🔍
12/30/2016 +0 days 🔍
12/30/2016 +0 days 🔍
04/09/2017 +100 days 🔍
06/14/2017 +66 days 🔍
10/27/2022 +1961 days 🔍

Sourcesinfo

Advisory: bba6a840f4d53cbaf62971a3078a98c8ddf92b85
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-10082 (🔍)
SecurityFocus: 95165 - Serendipity CVE-2016-10082 Arbitrary File Include Vulnerability

See also: 🔍

Entryinfo

Created: 12/30/2016 03:27 PM
Updated: 10/27/2022 07:29 AM
Changes: 12/30/2016 03:27 PM (69), 07/22/2019 06:49 PM (9), 10/27/2022 07:29 AM (4)
Complete: 🔍
Cache ID: 3:C28:40

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