eXtplorer 2.1.9 unzip/extract Archive File path traversal

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in eXtplorer 2.1.9. The affected element is an unknown function of the component unzip/extract. The manipulation as part of Archive File leads to path traversal. This vulnerability is referenced as CVE-2016-4313. Remote exploitation of the attack is possible. Furthermore, an exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in eXtplorer 2.1.9 and classified as critical. This issue affects an unknown functionality of the component unzip/extract. The manipulation as part of a Archive File leads to a path traversal vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Directory traversal vulnerability in unzip/extract feature in eXtplorer 2.1.9 allows remote attackers to execute arbitrary files via a .. (dot dot) in an archive file.

The bug was discovered 05/14/2016. The weakness was published 04/24/2017 by John Page (hyp3rlinx) as confirmed posting (Bugtraq). It is possible to read the advisory at securityfocus.com. The identification of this vulnerability is CVE-2016-4313 since 04/27/2016. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are unknown but a public exploit is available. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

A public exploit has been developed by hyp3rlinx and been published even before and not after the advisory. The exploit is available 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 93 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 92970 (Debian DLA-596-1 : extplorer 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.

Upgrading 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 (39816), Tenable (92970) and SecurityFocus (BID 98069†). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Author: hyp3rlinx
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 92970
Nessus Name: Debian DLA-596-1 : extplorer security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/27/2016 🔍
05/14/2016 +17 days 🔍
05/16/2016 +2 days 🔍
05/16/2016 +0 days 🔍
08/15/2016 +91 days 🔍
08/16/2016 +1 days 🔍
04/24/2017 +251 days 🔍
04/24/2017 +0 days 🔍
04/24/2017 +0 days 🔍
04/25/2017 +1 days 🔍
01/30/2025 +2837 days 🔍

Sourcesinfo

Advisory: 137031⛔
Researcher: John Page (hyp3rlinx)
Status: Confirmed

CVE: CVE-2016-4313 (🔍)
GCVE (CVE): GCVE-0-2016-4313
GCVE (VulDB): GCVE-100-100535
SecurityFocus: 98069 - eXtplorer CVE-2016-4313 Local Directory Traversal Vulnerability
OSVDB: - CVE-2016-4313 - eXtplorer - Directory Traversal Issue

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

Entryinfo

Created: 04/25/2017 08:54
Updated: 01/30/2025 18:01
Changes: 04/25/2017 08:54 (73), 09/20/2020 16:44 (8), 12/02/2022 08:55 (4), 01/30/2025 18:01 (14)
Complete: 🔍
Cache ID: 216::103

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