This script is Copyright (C) 2012 Tenable Network Security, Inc.
The remote Scientific Linux host is missing one or more security
It was discovered that the pam_namespace module executed the external
script namespace.init with an unchanged environment inherited from an
application calling PAM. In cases where such an environment was
untrusted (for example, when pam_namespace was configured for setuid
applications such as su or sudo), a local, unprivileged user could
possibly use this flaw to escalate their privileges. (CVE-2010-3853)
It was discovered that the pam_env and pam_mail modules used root
privileges while accessing user's files. A local, unprivileged user
could use this flaw to obtain information, from the lines that have
the KEY=VALUE format expected by pam_env, from an arbitrary file.
Also, in certain configurations, a local, unprivileged user using a
service for which the pam_mail module was configured for, could use
this flaw to obtain limited information about files or directories
that they do not have access to. (CVE-2010-3435)
Note: As part of the fix for CVE-2010-3435, this update changes the
default value of pam_env's configuration option user_readenv to 0,
causing the module to not read user's ~/.pam_environment configuration
file by default, as reading it may introduce unexpected changes to the
environment of the service using PAM, or PAM modules consulted after
It was discovered that the pam_xauth module did not verify the return
values of the setuid() and setgid() system calls. A local,
unprivileged user could use this flaw to execute the xauth command
with root privileges and make it read an arbitrary input file.
See also :
Update the affected pam and / or pam-devel packages.
Risk factor :
Medium / CVSS Base Score : 6.9
Family: Scientific Linux Local Security Checks
Nessus Plugin ID: 60901 ()
CVE ID: CVE-2010-3316CVE-2010-3435CVE-2010-3853
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