Vulnerability Details : CVE-2017-8921
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.
Vulnerability category: Directory traversal
Products affected by CVE-2017-8921
- cpe:2.3:a:flightgear:flightgear:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2017-8921
0.59%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 67 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2017-8921
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:P/A:N |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2017-8921
-
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.Assigned by: nvd@nist.gov (Primary)
References for CVE-2017-8921
-
https://sourceforge.net/p/flightgear/flightgear/ci/faf872e7f71ca14c567ac7080561fc785d8d2fd0/
FlightGear - Flight Simulator / FlightGear / Commit [faf872]Issue Tracking;Patch;Third Party Advisory
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