Linux pam euid/egid
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I'm trying to setup a pam module that has a configuration file (pam_pgsql if it matters). What minimal permissions shall I set to its config? Module uses fopen with "r" access mode string for it. I'd like to restrict the access because there's unencrypted database password stored in it, although when I run tests as some unprivileged user, I observe an error that config file is not accessible ('no access for config file'). Currently it has root:root owner and 640 permissions. Is there some kind of group for pam, for example, or does pam module always execute with current/calling user's uid/gid? If so, how to secure this config file in order not to expose database credentials to all users?
Thank you
linux debian pam
asked Nov 30 at 0:52
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up vote
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I'm trying to setup a pam module that has a configuration file (pam_pgsql if it matters). What minimal permissions shall I set to its config? Module uses fopen with "r" access mode string for it. I'd like to restrict the access because there's unencrypted database password stored in it, although when I run tests as some unprivileged user, I observe an error that config file is not accessible ('no access for config file'). Currently it has root:root owner and 640 permissions. Is there some kind of group for pam, for example, or does pam module always execute with current/calling user's uid/gid? If so, how to secure this config file in order not to expose database credentials to all users?
Thank you
linux debian pam
asked Nov 30 at 0:52
BbIKTOP
1093
add a comment |
up vote
-1
down vote
favorite
up vote
-1
down vote
favorite
I'm trying to setup a pam module that has a configuration file (pam_pgsql if it matters). What minimal permissions shall I set to its config? Module uses fopen with "r" access mode string for it. I'd like to restrict the access because there's unencrypted database password stored in it, although when I run tests as some unprivileged user, I observe an error that config file is not accessible ('no access for config file'). Currently it has root:root owner and 640 permissions. Is there some kind of group for pam, for example, or does pam module always execute with current/calling user's uid/gid? If so, how to secure this config file in order not to expose database credentials to all users?
Thank you
linux debian pam
asked Nov 30 at 0:52
BbIKTOP
1093
I'm trying to setup a pam module that has a configuration file (pam_pgsql if it matters). What minimal permissions shall I set to its config? Module uses fopen with "r" access mode string for it. I'd like to restrict the access because there's unencrypted database password stored in it, although when I run tests as some unprivileged user, I observe an error that config file is not accessible ('no access for config file'). Currently it has root:root owner and 640 permissions. Is there some kind of group for pam, for example, or does pam module always execute with current/calling user's uid/gid? If so, how to secure this config file in order not to expose database credentials to all users?
Thank you
linux debian pam
linux debian pam
asked Nov 30 at 0:52
BbIKTOP
1093
asked Nov 30 at 0:52
BbIKTOP
1093
edited Nov 30 at 1:04
asked Nov 30 at 0:52
BbIKTOP
1093
asked Nov 30 at 0:52
BbIKTOP
1093
asked Nov 30 at 0:52
BbIKTOP
1093
1093
add a comment |
add a comment |
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