Vulnerability CVE-2019-9193
Published: 2019-04-01

Description:
** DISPUTED ** In PostgreSQL 9.3 through 11.2, the "COPY TO/FROM PROGRAM" function allows superusers and users in the 'pg_execute_server_program' group to execute arbitrary code in the context of the database's operating system user. This functionality is enabled by default and can be abused to run arbitrary operating system commands on Windows, Linux, and macOS. NOTE: Third parties claim/state this is not an issue because PostgreSQL functionality for ?COPY TO/FROM PROGRAM? is acting as intended. References state that in PostgreSQL, a superuser can execute commands as the server user without using the ?COPY FROM PROGRAM?.

Type:

CWE-78

 (Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') )

CVSS2 => (AV:N/AC:L/Au:S/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
9/10
10/10
8/10
Exploit range
Attack complexity
Authentication
Remote
Low
Single time
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete
Affected software
Postgresql -> Postgresql 

 References:
http://packetstormsecurity.com/files/152757/PostgreSQL-COPY-FROM-PROGRAM-Command-Execution.html
https://blog.hagander.net/when-a-vulnerability-is-not-a-vulnerability-244/
https://medium.com/greenwolf-security/authenticated-arbitrary-command-execution-on-postgresql-9-3-latest-cd18945914d5
https://paquier.xyz/postgresql-2/postgres-9-3-feature-highlight-copy-tofrom-program/
https://security.netapp.com/advisory/ntap-20190502-0003/
https://www.trustwave.com/en-us/resources/blogs/spiderlabs-blog/authenticated-arbitrary-command-execution-on-postgresql-9-3/
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