Access Restriction Bypass Affecting postgresql package, versions [9.3.0,9.3.21)[9.4.0,9.4.16)[9.5.0,9.5.11)[9.6.0,9.6.7)


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.06% (30th percentile)

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  • Snyk IDSNYK-UNMANAGED-POSTGRESQL-2336019
  • published12 Jan 2022
  • disclosed9 Feb 2018
  • creditUnknown

Introduced: 9 Feb 2018

CVE-2018-1053  (opens in a new tab)
CWE-264  (opens in a new tab)

How to fix?

Upgrade postgresql to version 9.3.21, 9.4.16, 9.5.11, 9.6.7 or higher.

Overview

Affected versions of this package are vulnerable to Access Restriction Bypass. 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.

CVSS Scores

version 3.1