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6.3	$0-$5k	0.00

Summaryinfo

A vulnerability identified as critical has been detected in FlightGear up to 2017. This issue affects some unknown processing of the file Autopilot/route_mgr.cxx of the component FGCommand Interface. This manipulation as part of XML causes path traversal. This vulnerability is registered as CVE-2017-8921. Remote exploitation of the attack is possible. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in FlightGear up to 2017. Affected by this vulnerability is some unknown functionality of the file Autopilot/route_mgr.cxx of the component FGCommand Interface. The manipulation as part of a XML 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 integrity, and availability. The summary by CVE is:

In FlightGear before 2017.2.1, the FGCommand interface allows overwriting any file the user has write access to, but not with arbitrary data: only with the contents of a FlightGear flightplan (XML). A resource such as a malicious third-party aircraft could exploit this to damage files belonging to the user. Both this issue and CVE-2016-9956 are directory traversal vulnerabilities in Autopilot/route_mgr.cxx - this one exists because of an incomplete fix for CVE-2016-9956.

The bug was discovered 05/12/2017. The weakness was published 05/12/2017 (Website). It is possible to read the advisory at sourceforge.net. This vulnerability is known as CVE-2017-8921 since 05/12/2017. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 100361 (Fedora 25 : FlightGear (2017-410749716d)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 276670 (Fedora Security Update for FlightGear (FEDORA-2017-fc10e3165a)).

Upgrading to version 2017.2.1 eliminates this vulnerability. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (100361). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

• FlightGear

Version

• 2017

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.4
VulDB Temp Score: 5.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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

Nessus ID: 100361
Nessus Name: Fedora 25 : FlightGear (2017-410749716d)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 867773
OpenVAS Name: Fedora Update for FlightGear FEDORA-2017-fc10e3165a
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: FlightGear 2017.2.1

Timelineinfo

05/12/2017 🔍
05/12/2017 +0 days 🔍
05/12/2017 +0 days 🔍
05/12/2017 +0 days 🔍
05/13/2017 +1 days 🔍
05/23/2017 +10 days 🔍
05/24/2017 +1 days 🔍
08/19/2024 +2644 days 🔍

Sourcesinfo

Advisory: sourceforge.net
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-8921 (🔍)
GCVE (CVE): GCVE-0-2017-8921
GCVE (VulDB): GCVE-100-101215
OSVDB: - CVE-2017-8921 - FlightGear - Directory Traversal Issue

Entryinfo

Created: 05/13/2017 09:14
Updated: 08/19/2024 12:44
Changes: 05/13/2017 09:14 (71), 09/26/2020 11:27 (4), 08/19/2024 12:44 (18)
Complete: 🔍
Cache ID: 216:ACF:103

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