CVE-2018-20483

high
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

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.

References

http://git.savannah.gnu.org/cgit/wget.git/tree/NEWS

http://www.securityfocus.com/bid/106358

https://access.redhat.com/errata/RHSA-2019:3701

https://security.gentoo.org/glsa/201903-08

https://security.netapp.com/advisory/ntap-20190321-0002/

https://twitter.com/marcan42/status/1077676739877232640

https://usn.ubuntu.com/3943-1/

Details

Source: MITRE

Published: 2018-12-26

Updated: 2020-08-24

Type: CWE-200

Risk Information

CVSS v2

Base Score: 2.1

Vector: AV:L/AC:L/Au:N/C:P/I:N/A:N

Impact Score: 2.9

Exploitability Score: 3.9

Severity: LOW

CVSS v3

Base Score: 7.8

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

Impact Score: 5.9

Exploitability Score: 1.8

Severity: HIGH

Vulnerable Software

Configuration 1

OR

cpe:2.3:a:gnu:wget:*:*:*:*:*:*:*:*

Tenable Plugins

View all (14 total)

IDNameProductFamilySeverity
145603CentOS 8 : curl (CESA-2019:3701)NessusCentOS Local Security Checks
critical
130568RHEL 8 : curl (RHSA-2019:3701)NessusRed Hat Local Security Checks
critical
126290EulerOS 2.0 SP8 : wget (EulerOS-SA-2019-1663)NessusHuawei Local Security Checks
high
126204Photon OS 1.0: Wget PHSA-2019-1.0-0237NessusPhotonOS Local Security Checks
high
124047FreeBSD : wget -- security flaw in caching credentials passed as a part of the URL (a737eb11-5cfc-11e9-ab87-8cec4bf8fcfb)NessusFreeBSD Local Security Checks
high
123973Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS / 18.10 : wget vulnerabilities (USN-3943-1)NessusUbuntu Local Security Checks
critical
122736GLSA-201903-08 : GNU Wget: Password and metadata leakNessusGentoo Local Security Checks
high
122260Amazon Linux 2 : curl (ALAS-2019-1162)NessusAmazon Linux Local Security Checks
critical
122035Amazon Linux AMI : curl (ALAS-2019-1151)NessusAmazon Linux Local Security Checks
critical
121333Fedora 29 : curl (2019-427a0ba9e3)NessusFedora Local Security Checks
high
121284openSUSE Security Update : wget (openSUSE-2019-57)NessusSuSE Local Security Checks
high
121207SUSE SLED15 / SLES15 Security Update : wget (SUSE-SU-2019:0093-1)NessusSuSE Local Security Checks
high
121086Fedora 28 : wget (2019-d1b5cf0055)NessusFedora Local Security Checks
high
120965Fedora 29 : wget (2019-088875c43a)NessusFedora Local Security Checks
high