PT-2017-14843 · Tkabber · Tkabber

Published 2017-12-14 · Updated 2024-08-05 · CVE-2017-17533

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Tkabber version 1.1

Description The issue concerns the default.tcl script in Tkabber, which fails to validate strings before launching a program specified by the BROWSER environment variable. This could potentially allow remote attackers to conduct argument-injection attacks via a crafted URL. However, it has been noted that the attack might not be possible due to the argument-parsing behavior of the Tcl exec function.

Recommendations For Tkabber version 1.1, consider validating strings before launching the program specified by the BROWSER environment variable to prevent potential argument-injection attacks. As a temporary workaround, restrict the use of the BROWSER environment variable until a proper fix is applied. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Special Elements Injection

Weakness Enumeration

CWE-74

Related Identifiers

CVE-2017-17533

Affected Products

Tkabber

References · 8

• https://security-tracker.debian.org/tracker/CVE-2017-17533 · Vendor Advisory
• https://ubuntu.com/security/CVE-2017-17533 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2017-17533 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2017-17533 · Security Note
• https://osv.dev/vulnerability/CVE-2017-17533 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2017-17533 · Vendor Advisory
• https://t.me/cvenotify/89290 · Telegram Post
• https://sources.debian.org/src/tkabber/1.1-1/default.tcl/?hl=118#L118 · Note