Local initialization files' lists of preloaded libraries must contain only absolute paths.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-22364	GEN001902	SV-39102r1_rule	ECSC-1	Medium

Description
The library preload list environment variable contains a list of libraries for the dynamic linker to load before loading the libraries required by the binary. If this list contains paths to libraries relative to the current working directory, unintended libraries may be preloaded. This variable is formatted as a space-separated list of libraries. Paths starting with a slash (/) are absolute paths.

Description

The library preload list environment variable contains a list of libraries for the dynamic linker to load before loading the libraries required by the binary. If this list contains paths to libraries relative to the current working directory, unintended libraries may be preloaded. This variable is formatted as a space-separated list of libraries. Paths starting with a slash (/) are absolute paths.

STIG	Date
Draft AIX Security Technical Implementation Guide	2011-08-17

Details

Check Text ( C-38085r1_chk )
Verify local initialization files have library preload list containing only absolute paths. Procedure: # cat /etc/passwd \| cut -f 1,1 –d “:” \| xargs -n1 -IUSER sh -c “grep -l LDR_PRELOAD ~USER/.*” This variable is formatted as a colon-separated list of paths. If there is an empty entry, such as a leading or trailing colon, or two consecutive colons, this is a finding. If an entry begins with a character other than a slash (/), this is a finding.

Check Text ( C-38085r1_chk )

Verify local initialization files have library preload list containing only absolute paths.
Procedure:
# cat /etc/passwd | cut -f 1,1 –d “:” | xargs -n1 -IUSER sh -c “grep -l LDR_PRELOAD ~USER/.*”
This variable is formatted as a colon-separated list of paths. If there is an empty entry, such as a leading or trailing colon, or two consecutive colons, this is a finding.
If an entry begins with a character other than a slash (/), this is a finding.

Fix Text (F-33354r1_fix)
Edit the local initialization file and remove the relative path entry from the library preload variable LDR_PRELOAD.