CVE-2017-17520 — HIGH (8.8)

Vulnerability Description

tools/url_handler.pl in TIN 2.4.1 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 third party has reported that this is intentional behavior, because the documentation states "url_handler.pl was designed to work together with tin which only issues shell escaped absolute URLs.

CVSS Score

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Debian	Tin	2.4.1

Related Weaknesses (CWE)

CWE-74

References

https://security-tracker.debian.org/tracker/CVE-2017-17520Issue TrackingThird Party Advisory
https://security-tracker.debian.org/tracker/CVE-2017-17520Issue TrackingThird Party Advisory

FAQ

What is CVE-2017-17520?

CVE-2017-17520 is a vulnerability with a CVSS score of 8.8 (HIGH). tools/url_handler.pl in TIN 2.4.1 does not validate strings before launching the program specified by the BROWSER environment variable, which might allow remote attackers to conduct argument-injection...

How severe is CVE-2017-17520?

CVE-2017-17520 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2017-17520?

Check the references section above for vendor advisories and patch information. Affected products include: Debian Tin.