Bug 7517 – Use of su from a remote login is a possible security risk

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Bug 7517 - Use of su from a remote login is a possible security risk

Summary:	Use of su from a remote login is a possible security risk

Status:	CLOSED NOTABUG

Aliases:	None

Product:	Red Hat Linux
Classification:	Retired
Component:	sh-utils (Show other bugs)
Sub Component:
Version:	6.0
Hardware:	All Linux

Priority	medium Severity medium
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Assigned To:	bero
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Keywords:	Security

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Reported:	1999-12-02 13:05 EST by Ted Knupke
Modified:	2008-05-01 11:37 EDT (History)
CC List:	0 users

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Fixed In Version:
Doc Type:	Bug Fix
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Last Closed:	2000-02-03 13:40:28 EST
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Description Ted Knupke 1999-12-02 13:05:59 EST

It is possible for a remote user to log into root via su even when
/etc/security/access.conf is set up to deny access to root from remote
locations.  (I am not sure whether this is a problem with su or with pam.)

Comment 1 Elliot Lee 2000-02-03 13:40:59 EST

This is the normal, expected behaviour. If you wish to deny root shells at all
from remote hosts, you can change your PAM configuration to use the
pam_securetty module for the 'su' service.

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