The lrename function follows symlinks when renaming files. Since the source is a temporary file and the target is the database file itself, which is opened with O_NOFOLLOW, this function is only useful for an attacker who manages to win some form of race. Fixes: 0fa908302660 (2007-10-07; "[svn-upgrade] Integrating new upstream version, shadow (4.0.16)") Fixes: 391a3847157c (2010-03-04; "2010-01-30 Paweł Hajdan, Jr. <phajdan.jr@gentoo.org>") Reviewed-by: Alejandro Colomar <alx@kernel.org> Signed-off-by: Tobias Stoeckmann <tobias@stoeckmann.org>
shadow-utils
Introduction
The shadow-utils package includes the necessary programs for converting UNIX password files to the shadow password format, plus programs for managing user and group accounts. The pwconv command converts passwords to the shadow password format. The pwunconv command unconverts shadow passwords and generates a passwd file (a standard UNIX password file). The pwck command checks the integrity of password and shadow files. The lastlog command prints out the last login times for all users. The useradd, userdel, and usermod commands are used for managing user accounts. The groupadd, groupdel, and groupmod commands are used for managing group accounts.
Sites
Code
The main development branch is at https://github.com/shadow-maint/shadow.git
See STABLE.md for a list of supported stable branches.
Contacts
There are several ways to contact us:
- the general discussion mailing list
- the #shadow IRC channel on libera.chat:
- irc://irc.libera.chat/shadow
Mailing archives
- the general discussion mailing list archive
- the commit mailing list archive, only used for historical purposes
Contributions
Contributions are welcome. Follow the guidelines before posting any patches.
Authors and maintainers
Authors and maintainers are listed in AUTHORS.md.