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CVE request (Debian specific): slapd: dangerous access rule in default config


From: Yves-Alexis Perez <corsac () debian org>
Date: Sat, 28 Mar 2015 23:52:12 +0100

Hi,

Debian bug #761406 was fixed in Debian sid some time ago, but no CVE was
assigned. In order to raise some exposure, and make sure admins
check/fix their config, we'll issue a DSA, so I'm requesting a CVE for
this.

The problem is that by default LDAP users have write access to their own
attributes. If LDAP is used to grant permissions, and those permissions
are stored as user attributes (for example by using the ou), then an
user can modify its own permissions, which is usually not wanted.

It's a Debian specific issue, but the OpenLDAP documentation [2]
actually recommends something like that.

Thanks in advance,

[1]: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=761406
[2]: http://www.openldap.org/doc/admin24/guide.html#Basic ACLs
-- 
Yves-Alexis

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