VDB-93016 · CVE-2016-7982 · EDB 40596

SPIP 3.1.1/3.1.2 valider_xml var_url path traversal

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.
7.1	$0-$5k	0.00

Summaryinfo

A vulnerability classified as critical was found in SPIP 3.1.1/3.1.2. Affected by this vulnerability is an unknown functionality of the file valider_xml. Executing a manipulation of the argument var_url with the input file:///etc can lead to path traversal. This vulnerability is handled as CVE-2016-7982. The attack can be executed remotely. Additionally, an exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical was found in SPIP 3.1.1/3.1.2 (Content Management System). This vulnerability affects an unknown function of the file valider_xml. The manipulation of the argument var_url with the input value file:///etc leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect confidentiality, and integrity. CVE summarizes:

Directory traversal vulnerability in ecrire/exec/valider_xml.php in SPIP 3.1.2 and earlier allows remote attackers to enumerate the files on the system via the var_url parameter in a valider_xml action.

The bug was discovered 09/15/2016. The weakness was released 10/12/2016 by Nicolas Chatelain with Sysdream as CVE-2016-7982: SPIP 3.1.1/3.1.2 File Enumeration / Path Traversal as confirmed mailinglist post (Full-Disclosure). The advisory is shared for download at seclists.org. The public release was coordinated with the vendor. This vulnerability was named CVE-2016-7982 since 09/09/2016. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details and also a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1006. Responsible for the vulnerability is the following code:

echo "<h1>", $titre, '<br>', $bandeau, '</h1>',
     "<div style='text-align: center'>", $onfocus, "</div>",
     $res,
     fin_page();

It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 13 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 94476 (Debian DLA-695-1 : spip security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 11709 (SPIP Multiple Remote Vulnerabilities).

Upgrading to version 3.1.3 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 Exploit-DB (40596), Tenable (94476) and SecurityFocus (BID 93451†). Entries connected to this vulnerability are available at VDB-93006, VDB-93007, VDB-93017 and VDB-93018. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Content Management System

Name

SPIP

Version

License

free

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.1

VulDB Base Score: 7.5
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Path traversal
CWE: CWE-22
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 94476
Nessus Name: Debian DLA-695-1 : spip security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 800308
OpenVAS Name: SPIP Multiple Vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍

Upgrade: SPIP 3.1.3

Timelineinfo

09/09/2016 🔍
09/15/2016 +6 days 🔍
09/26/2016 +11 days 🔍
09/27/2016 +1 days 🔍
09/28/2016 +1 days 🔍
10/05/2016 +7 days 🔍
10/12/2016 +7 days 🔍
10/21/2016 +9 days 🔍
11/03/2016 +13 days 🔍
01/18/2017 +76 days 🔍
05/13/2026 +3402 days 🔍

Sourcesinfo

Advisory: CVE-2016-7982: SPIP 3.1.1/3.1.2 File Enumeration / Path Traversal
Researcher: Nicolas Chatelain
Organization: Sysdream
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2016-7982 (🔍)
GCVE (CVE): GCVE-0-2016-7982
GCVE (VulDB): GCVE-100-93016
SecurityFocus: 93451 - SPIP Multiple Security Vulnerabilities

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 10/21/2016 19:45
Updated: 05/13/2026 15:09
Changes: 10/21/2016 19:45 (80), 05/15/2019 11:54 (15), 06/30/2024 16:24 (17), 05/13/2026 15:09 (1)
Complete: 🔍
Cache ID: 216::103

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