gns3-gui update for Python



Published: 2022-12-02 | Updated: 2022-12-12
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2007-4559
CWE-ID CWE-22
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
Subscribe 		gns3-gui
Other software / Other software solutions

Vendor GNS3

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Path traversal

EUVDB-ID: #VU67583

Risk: High

CVSSv3.1: 8.2 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:P/RL:O/RC:C]

CVE-ID: CVE-2007-4559

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to improper validation of filenames in the tarfile module in Python. A remote attacker can create a specially crafted archive with symbolic links inside or filenames that contain directory traversal characters (e.g. "..") and overwrite arbitrary files on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

gns3-gui: 2.0.0 - 2.2.34

External links

http://github.com/GNS3/gns3-gui/releases/tag/v2.2.35


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.



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