CVE-2017-17522

HIGH severity · CVSS 8.8 · Injection

8.8CVSS HIGH

Summary

Lib/webbrowser.py in Python through 3.6.3 does not validate strings before launching the program specified by the BROWSER environment variable, which might allow remote attackers to conduct argument-injection attacks via a crafted URL. NOTE: a software maintainer indicates that exploitation is impossible because the code relies on subprocess.Popen and the default shell=False setting

Impact & exploitability

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionRequired

Confidentiality impactHigh

Integrity impactHigh

Availability impactHigh

Exploit probability (EPSS)1%

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products we track (1)

Python

Recommendation

Apply the vendor fix promptly. Open any affected product above for its exact safe version.

Additional information

NVD record
http://www.securityfocus.com/bid/102207Advisory
https://bugs.python.org/issue32367
https://security-tracker.debian.org/tracker/CVE-2017-17522Advisory
http://www.securityfocus.com/bid/102207Advisory
https://bugs.python.org/issue32367
https://security-tracker.debian.org/tracker/CVE-2017-17522Advisory