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Incorrect Permission Assignment for Critical Resource Affecting postgresql-9.6 package, versions <9.6.7-0+deb9u1

0.0
high

Snyk CVSS

    Attack Complexity High
    Confidentiality High
    Integrity High
    Availability High

    Threat Intelligence

    EPSS 0.06% (26th percentile)
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NVD
7 high
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Red Hat
6.7 medium

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  • Snyk ID SNYK-DEBIAN9-POSTGRESQL96-282990
  • published 9 Feb 2018
  • disclosed 9 Feb 2018
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Introduced: 9 Feb 2018

CVE-2018-1053 Open this link in a new tab
CWE-732 Open this link in a new tab

How to fix?

Upgrade Debian:9 postgresql-9.6 to version 9.6.7-0+deb9u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream postgresql-9.6 package and not the postgresql-9.6 package as distributed by Debian. See How to fix? for Debian:9 relevant fixed versions and status.

In postgresql 9.3.x before 9.3.21, 9.4.x before 9.4.16, 9.5.x before 9.5.11, 9.6.x before 9.6.7 and 10.x before 10.2, pg_upgrade creates file in current working directory containing the output of pg_dumpall -g under umask which was in effect when the user invoked pg_upgrade, and not under 0077 which is normally used for other temporary files. This can allow an authenticated attacker to read or modify the one file, which may contain encrypted or unencrypted database passwords. The attack is infeasible if a directory mode blocks the attacker searching the current working directory or if the prevailing umask blocks the attacker opening the file.