Argument injection attack in Xdg-Utils - CVE-2017-18266
Published: May 16, 2018
Vulnerability identifier: #VU12746
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear
CVE-ID: CVE-2017-18266
CWE-ID: CWE-88
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Freedesktop.org
Affected software:
Xdg-Utils
Xdg-Utils
Detailed vulnerability description
The vulnerability allows a remote unauthenticated attacker to conduct argument injection attack on the target system.
The weakness exists in the open_envvar function in the xdg-open component due to improper validation of user-supplied input. A remote attacker can trick the victim into following a specially crafted link that is designed to modify the BROWSER environment variable, conduct argument-injection attack, redirect the user's browser traffic to an attacker-controlled site and execute arbitrary commands.
The weakness exists in the open_envvar function in the xdg-open component due to improper validation of user-supplied input. A remote attacker can trick the victim into following a specially crafted link that is designed to modify the BROWSER environment variable, conduct argument-injection attack, redirect the user's browser traffic to an attacker-controlled site and execute arbitrary commands.
How to mitigate CVE-2017-18266
Update to version 1.1.3.