CVE-2018-20483

7.8HIGH

Key Information:

Vendor
Gnu
Status
Wget
Vendor
CVE Published:
26 December 2018

Summary

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

https://security.gentoo.org/glsa/201903-08
vendor-advisoryx_refsource_GENTOO
http://www.securityfocus.com/bid/106358
vdb-entryx_refsource_BID
https://twitter.com/marcan42/status/1077676739877232640
x_refsource_MISC

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.