PT-2018-3562 · Gnu+5 · Gnu Wget+5

Published 2018-12-26 · Updated 2024-06-15 · CVE-2018-20483

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions: GNU Wget versions prior to 1.20.1

Description: The issue is related to the set file metadata function in xattr.c of GNU Wget, which lacks protection of metadata. This allows a local user to obtain sensitive information, such as credentials contained in a URL, by reading the user.xdg.origin.url metadata attribute of a downloaded file. Additionally, Referer information in the user.xdg.referrer.url metadata attribute is also accessible.

Recommendations: For GNU Wget versions prior to 1.20.1, update to version 1.20.1 or later to resolve the issue. As a temporary workaround, consider restricting access to the user.xdg.origin.url and user.xdg.referrer.url metadata attributes to minimize the risk of exploitation.

Exploit

Fix

Information Disclosure

Weakness Enumeration

CWE-200

Related Identifiers

ALT-PU-2018-2973

BDU:2020-04857

CESA-2019_3701

CVE-2018-20483

MGASA-2019-0015

OPENSUSE-SU-2019:0057-1

OPENSUSE-SU-2019_0057-1

OPENSUSE-SU-2024:11510-1

RHSA-2019:3701

RHSA-2019_3701

SUSE-SU-2019:0093-1

SUSE-SU-2019_0093-1

USN-3943-1

Affected Products

Alt Linux

Centos

Gnu Wget

Red Hat

Suse

Ubuntu

References · 38

• 🔥 https://twitter.com/marcan42/status/1077676739877232640 · Exploit
• https://security-tracker.debian.org/tracker/CVE-2018-20483 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2019-0015.html · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2018-20483 · Security Note
• https://osv.dev/vulnerability/ALPINE-CVE-2018-20483 · Vendor Advisory
• https://ubuntu.com/security/CVE-2018-20483 · Vendor Advisory
• https://osv.dev/vulnerability/MGASA-2019-0015 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2019:0093-1 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2018-20483 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2019:3701 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-3943-1 · Vendor Advisory
• https://usn.ubuntu.com/3943-1 · Vendor Advisory
• https://osv.dev/vulnerability/USN-3943-1 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2018-20483 · Security Note
• https://security.gentoo.org/glsa/201903-08 · Vendor Advisory