CVE-2019-20384 - Improper Preservation of Permissions

Severity

55%

Complexity

18%

Confidentiality

60%

Gentoo Portage through 2.3.84 allows local users to place a Trojan horse plugin in the /usr/lib64/nagios/plugins directory by leveraging access to the nagios user account, because this directory is writable in between a call to emake and a call to fowners.

Gentoo Portage through 2.3.84 allows local users to place a Trojan horse plugin in the /usr/lib64/nagios/plugins directory by leveraging access to the nagios user account, because this directory is writable in between a call to emake and a call to fowners.

CVSS 3.1 Base Score 5.5. CVSS Attack Vector: local. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N).

CVSS 2.0 Base Score 2.1. CVSS Attack Vector: local. CVSS Attack Complexity: low. CVSS Vector: (AV:L/AC:L/Au:N/C:N/I:P/A:N).

Overview

First reported 5 years ago

2020-01-21 00:15:00

Last updated 5 years ago

2020-01-29 17:15:00

Affected Software

Gentoo Portage

References

[oss-security] 20200121 CVE-2019-20384: Portage insecure temporary location

Exploit, Mailing List, Third Party Advisory

https://bugs.gentoo.org/692492

Exploit, Issue Tracking, Vendor Advisory

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