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CVE-2018-20483

Published: Dec 26, 2018Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-200
NVD MITRE
7.8CVSSHIGH
EPSS Score
0.7%
Top 53.4%
CISA KEV
Not in KEV
Exploits
1 Known
Remediation
Patch Available

Description

set_file_metadata in xattr.c in GNU Wget before 1.20.1 stores a file's origin URL in the user.xdg.origin.url metadata attribute of the extended attributes of the downloaded file, which allows local users to obtain sensitive information (e.g., credentials contained in the URL) by reading this attribute, as demonstrated by getfattr. This also applies to Referer information in the user.xdg.referrer.url metadata attribute. According to 2016-07-22 in the Wget ChangeLog, user.xdg.origin.url was partially based on the behavior of fwrite_xattr in tool_xattr.c in curl.

CVSS Vector Breakdown

AV:LAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-200

Affected Products

wgetgnuOSS Libraries
n/an/a
Red Hat Enterprise LinuxRed Hat Inc.
On-premOS
Operating Systems / linux-distro
SUSE Linux Enterprise Module for BasesystemNovell Inc.
On-premOS
Operating Systems / linux-distro
OpenSUSE LeapNovell Inc.
On-premOS
Operating Systems / linux-distro
gnuoss-projectUSOSS Librariesaka g. nu
red hat inc.commercialUSOperating Systemsaka red hat
novell inc.commercialUSOperating Systems
and 2 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

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Exploitability

1 exploit source identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

1 technique
Collection
View detailed technique mapping

References

http://git.savannah.gnu.org/cgit/wget.git/tree/NEWS
git.savannah.gnu.org
http://www.securityfocus.com/bid/106358
securityfocus.com
https://access.redhat.com/errata/RHSA-2019:3701
access.redhat.com
and 7 more references View all →

Timeline

Published
Dec 26, 2018
Last Updated
Nov 21, 2024

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