OpenLDAP slapd could allow an attacker to delete attributes from an object
| openldap-slapd-delete-attributes (7978) |  Medium Risk |
Description:
A vulnerability in slapd in OpenLDAP could allow an authenticated remote attacker to bypass access control lists by submitting a request to replace an attribute in a user object with an empty attribute, causing the attribute to be deleted.
Platforms Affected:
- Conectiva, Linux 6.0
- Conectiva, Linux 7.0
- HP, Secure OS 1.0
- MandrakeSoft, Mandrake Linux 8.0
- MandrakeSoft, Mandrake Linux 8.1
- OpenLDAP, OpenLDAP 2.0.0 - 2.0.19
- RedHat, Linux 7
- RedHat, Linux 7.1
- RedHat, Linux 7.2
- RedHat, Linux 7.3
- SCO, Caldera OpenLinux 3.1 IA64
- SCO, Caldera OpenLinux eBuilder
- SCO, Caldera OpenLinux eServer 2.3.1
- SCO, Caldera OpenLinux Server 3.1
- SCO, Caldera OpenLinux Server 3.1.1
- SCO, Caldera OpenLinux Workstation 3.1
- SCO, Caldera OpenLinux Workstation 3.1.1
Remedy:
Upgrade to the latest version of OpenLDAP (2.0.21 or later), available from the OpenLDAP Web site. See References.
For Red Hat Linux 7.0 and 7.1:
Upgrade to the latest version of OpenLDAP (2.0.21-0.7.1 or later), as listed in Red Hat Linux Errata Advisory RHSA-2002:014-07. See References.
For Red Hat Linux 7.2:
Upgrade to the latest version of OpenLDAP (2.0.21-1 or later), as listed in Red Hat Linux Errata Advisory RHSA-2002:014-07. See References.
For HP Secure OS Software for Linux 1.0:
Apply the RPMs from RHSA-2002-014 for your system, as listed in Hewlett-Packard Company Security Bulletin HPSBTL0201-020. See References.
For Conectiva Linux 6.0:
Upgrade to the latest version of OpenLDAP (2.0.21-1U60_1cl or later), as listed in Conectiva Linux Security Announcement CLA-2002:459. See References.
For Conectiva Linux 7.0:
Upgrade to the latest version of OpenLDAP (2.0.21-1U70_2cl or later), as listed in Conectiva Linux Security Announcement CLA-2002:459. See References.
For Mandrake Linux 8.0 and 8.1:
Upgrade to the latest version of OpenLDAP (2.0.21-1.1mdk or later), as listed in MandrakeSoft Security Advisory MDKSA-2002:013 : openldap. See References.
For Caldera OpenLinux eServer 2.3.1 and eBuilder:
Upgrade to the latest version of OpenLDAP (2.0.11-11S or later), as listed in Caldera International, Inc. Security Advisory CSSA-2002-001.0. See References.
For Caldera OpenLinux 3.1 IA64 and Caldera OpenLinux Server and Workstation 3.1 and 3.1.1:
Upgrade to the latest version of OpenLDAP (2.0.11-11 or later), as listed in Caldera International, Inc. Security Advisory CSSA-2002-001.0. See References.
For other distributions:
Contact your vendor for upgrade or patch information.
Consequences:
Data Manipulation
References:
- Caldera International, Inc. Security Advisory CSSA-2002-001.0, Linux - OpenLDAP attribute deletion problem at ftp://ftp.sco.com/pub/security/OpenLinux/CSSA-2002-001.0.txt.
- Conectiva Linux Announcement CLSA-2002:459, openldap at http://distro.conectiva.com/atualizacoes/index.php?id=a&anuncio=000459. (From LinuxSecurity archive)
- Hewlett-Packard Company Security Bulletin HPSBTL0201-020, Security vulnerability in OpenLDAP packages. at http://online.securityfocus.com/advisories/3832. (From SecurityFocus archive.)
- OpenLDAP Web site, Download at http://www.openldap.org/software/download/.
- openldap-announce Mailing List, Mon, 14 Jan 2002 13:59:23 -0800, OpenLDAP 2.0 Security Advisory at http://www.openldap.org/lists/openldap-announce/200201/msg00002.html.
- BID-3945: OpenLDAP Authenticated User Object Attribute Deletion Vulnerability
- BID-3947: OpenLDAP Anonymous User Object Attribute Deletion Vulnerability
- CVE-2002-0045: slapd in OpenLDAP 2.0 through 2.0.19 allows local users, and anonymous users before 2.0.8, to conduct a replace action on access controls without any values, which causes OpenLDAP to delete non-mandatory attributes that would otherwise be protected by ACLs.
- MDKSA-2002:013: Updated openldap packages fix permissions vulnerability
- OSVDB ID: 5395: OpenLDAP slapd Object Attribute Deletion
- RHSA-2002-014: Updated OpenLDAP packages available
Reported:
Jan 14, 2002
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