ID CVE-2012-4450
Summary 389 Directory Server 1.2.10 does not properly update the ACL when a DN entry is moved by a modrdn operation, which allows remote authenticated users with certain permissions to bypass ACL restrictions and access the DN entry.
References
Vulnerable Configurations
  • Fedora Project 389 Directory Server 1.2.10
    cpe:2.3:a:fedoraproject:389_directory_server:1.2.10
CVSS
Base: 6.0 (as of 01-10-2012 - 15:04)
Impact:
Exploitability:
CWE CWE-264
CAPEC
  • Accessing, Modifying or Executing Executable Files
    An attack of this type exploits a system's configuration that allows an attacker to either directly access an executable file, for example through shell access; or in a possible worst case allows an attacker to upload a file and then execute it. Web servers, ftp servers, and message oriented middleware systems which have many integration points are particularly vulnerable, because both the programmers and the administrators must be in synch regarding the interfaces and the correct privileges for each interface.
  • Leverage Executable Code in Non-Executable Files
    An attack of this type exploits a system's trust in configuration and resource files, when the executable loads the resource (such as an image file or configuration file) the attacker has modified the file to either execute malicious code directly or manipulate the target process (e.g. application server) to execute based on the malicious configuration parameters. Since systems are increasingly interrelated mashing up resources from local and remote sources the possibility of this attack occurring is high. The attack can be directed at a client system, such as causing buffer overrun through loading seemingly benign image files, as in Microsoft Security Bulletin MS04-028 where specially crafted JPEG files could cause a buffer overrun once loaded into the browser. Another example targets clients reading pdf files. In this case the attacker simply appends javascript to the end of a legitimate url for a pdf (http://www.gnucitizen.org/blog/danger-danger-danger/) http://path/to/pdf/file.pdf#whatever_name_you_want=javascript:your_code_here The client assumes that they are reading a pdf, but the attacker has modified the resource and loaded executable javascript into the client's browser process. The attack can also target server processes. The attacker edits the resource or configuration file, for example a web.xml file used to configure security permissions for a J2EE app server, adding role name "public" grants all users with the public role the ability to use the administration functionality. The server trusts its configuration file to be correct, but when they are manipulated, the attacker gains full control.
  • Blue Boxing
    This type of attack against older telephone switches and trunks has been around for decades. A tone is sent by an adversary to impersonate a supervisor signal which has the effect of rerouting or usurping command of the line. While the US infrastructure proper may not contain widespread vulnerabilities to this type of attack, many companies are connected globally through call centers and business process outsourcing. These international systems may be operated in countries which have not upgraded Telco infrastructure and so are vulnerable to Blue boxing. Blue boxing is a result of failure on the part of the system to enforce strong authorization for administrative functions. While the infrastructure is different than standard current applications like web applications, there are historical lessons to be learned to upgrade the access control for administrative functions.
  • Restful Privilege Elevation
    Rest uses standard HTTP (Get, Put, Delete) style permissions methods, but these are not necessarily correlated generally with back end programs. Strict interpretation of HTTP get methods means that these HTTP Get services should not be used to delete information on the server, but there is no access control mechanism to back up this logic. This means that unless the services are properly ACL'd and the application's service implementation are following these guidelines then an HTTP request can easily execute a delete or update on the server side. The attacker identifies a HTTP Get URL such as http://victimsite/updateOrder, which calls out to a program to update orders on a database or other resource. The URL is not idempotent so the request can be submitted multiple times by the attacker, additionally, the attacker may be able to exploit the URL published as a Get method that actually performs updates (instead of merely retrieving data). This may result in malicious or inadvertent altering of data on the server.
  • Target Programs with Elevated Privileges
    This attack targets programs running with elevated privileges. The attacker would try to leverage a bug in the running program and get arbitrary code to execute with elevated privileges. For instance an attacker would look for programs that write to the system directories or registry keys (such as HKLM, which stores a number of critical Windows environment variables). These programs are typically running with elevated privileges and have usually not been designed with security in mind. Such programs are excellent exploit targets because they yield lots of power when they break. The malicious user try to execute its code at the same level as a privileged system call.
  • Manipulating Input to File System Calls
    An attacker manipulates inputs to the target software which the target software passes to file system calls in the OS. The goal is to gain access to, and perhaps modify, areas of the file system that the target software did not intend to be accessible.
Access
VectorComplexityAuthentication
NETWORK MEDIUM SINGLE_INSTANCE
Impact
ConfidentialityIntegrityAvailability
PARTIAL PARTIAL PARTIAL
nessus via4
  • NASL family CentOS Local Security Checks
    NASL id CENTOS_RHSA-2013-0503.NASL
    description Updated 389-ds-base packages that fix one security issue, numerous bugs, and add various enhancements are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section. The 389-ds-base packages provide 389 Directory Server, which is an LDAPv3 compliant server. The base packages include the Lightweight Directory Access Protocol (LDAP) server and command-line utilities for server administration. A flaw was found in the way 389 Directory Server enforced ACLs after performing an LDAP modify relative distinguished name (modrdn) operation. After modrdn was used to move part of a tree, the ACLs defined on the moved (Distinguished Name) were not properly enforced until the server was restarted. This could allow LDAP users to access information that should be restricted by the defined ACLs. (CVE-2012-4450) This issue was discovered by Noriko Hosoi of Red Hat. These updated 389-ds-base packages include numerous bug fixes and enhancements. Space precludes documenting all of these changes in this advisory. Users are directed to the Red Hat Enterprise Linux 6.4 Technical Notes, linked to in the References, for information on the most significant of these changes. All users of 389-ds-base are advised to upgrade to these updated packages, which correct this issue and provide numerous bug fixes and enhancements. After installing this update, the 389 server service will be restarted automatically.
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 65138
    published 2013-03-10
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=65138
    title CentOS 6 : 389-ds-base (CESA-2013:0503)
  • NASL family Scientific Linux Local Security Checks
    NASL id SL_20130221_389_DS_BASE_ON_SL6_X.NASL
    description A flaw was found in the way 389 Directory Server enforced ACLs after performing an LDAP modify relative distinguished name (modrdn) operation. After modrdn was used to move part of a tree, the ACLs defined on the moved (Distinguished Name) were not properly enforced until the server was restarted. This could allow LDAP users to access information that should be restricted by the defined ACLs. (CVE-2012-4450) After installing this update, the 389 server service will be restarted automatically.
    last seen 2019-02-21
    modified 2018-12-31
    plugin id 64946
    published 2013-03-01
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=64946
    title Scientific Linux Security Update : 389-ds-base on SL6.x i386/x86_64
  • NASL family Red Hat Local Security Checks
    NASL id REDHAT-RHSA-2013-0503.NASL
    description Updated 389-ds-base packages that fix one security issue, numerous bugs, and add various enhancements are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section. The 389-ds-base packages provide 389 Directory Server, which is an LDAPv3 compliant server. The base packages include the Lightweight Directory Access Protocol (LDAP) server and command-line utilities for server administration. A flaw was found in the way 389 Directory Server enforced ACLs after performing an LDAP modify relative distinguished name (modrdn) operation. After modrdn was used to move part of a tree, the ACLs defined on the moved (Distinguished Name) were not properly enforced until the server was restarted. This could allow LDAP users to access information that should be restricted by the defined ACLs. (CVE-2012-4450) This issue was discovered by Noriko Hosoi of Red Hat. These updated 389-ds-base packages include numerous bug fixes and enhancements. Space precludes documenting all of these changes in this advisory. Users are directed to the Red Hat Enterprise Linux 6.4 Technical Notes, linked to in the References, for information on the most significant of these changes. All users of 389-ds-base are advised to upgrade to these updated packages, which correct this issue and provide numerous bug fixes and enhancements. After installing this update, the 389 server service will be restarted automatically.
    last seen 2019-02-21
    modified 2018-11-26
    plugin id 64754
    published 2013-02-21
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=64754
    title RHEL 6 : 389-ds-base (RHSA-2013:0503)
  • NASL family Oracle Linux Local Security Checks
    NASL id ORACLELINUX_ELSA-2013-0503.NASL
    description From Red Hat Security Advisory 2013:0503 : Updated 389-ds-base packages that fix one security issue, numerous bugs, and add various enhancements are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section. The 389-ds-base packages provide 389 Directory Server, which is an LDAPv3 compliant server. The base packages include the Lightweight Directory Access Protocol (LDAP) server and command-line utilities for server administration. A flaw was found in the way 389 Directory Server enforced ACLs after performing an LDAP modify relative distinguished name (modrdn) operation. After modrdn was used to move part of a tree, the ACLs defined on the moved (Distinguished Name) were not properly enforced until the server was restarted. This could allow LDAP users to access information that should be restricted by the defined ACLs. (CVE-2012-4450) This issue was discovered by Noriko Hosoi of Red Hat. These updated 389-ds-base packages include numerous bug fixes and enhancements. Space precludes documenting all of these changes in this advisory. Users are directed to the Red Hat Enterprise Linux 6.4 Technical Notes, linked to in the References, for information on the most significant of these changes. All users of 389-ds-base are advised to upgrade to these updated packages, which correct this issue and provide numerous bug fixes and enhancements. After installing this update, the 389 server service will be restarted automatically.
    last seen 2019-02-21
    modified 2018-07-18
    plugin id 68743
    published 2013-07-12
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=68743
    title Oracle Linux 6 : 389-ds-base (ELSA-2013-0503)
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2012-20156.NASL
    description Here is where you give an explanation of your update. Here is where you give an explanation of your update. cleanallruv support - Change on SLAPI_MODRDN_NEWSUPERIOR is not evaluated in ACL (ACL rules bypass possible) Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2015-10-20
    plugin id 63524
    published 2013-01-15
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=63524
    title Fedora 16 : 389-ds-base-1.2.10.24-1.fc16 (2012-20156)
redhat via4
advisories
bugzilla
id 896256
title updating package touches configuration files
oval
AND
  • OR
    • comment Red Hat Enterprise Linux 6 Client is installed
      oval oval:com.redhat.rhsa:tst:20100842001
    • comment Red Hat Enterprise Linux 6 Server is installed
      oval oval:com.redhat.rhsa:tst:20100842002
    • comment Red Hat Enterprise Linux 6 Workstation is installed
      oval oval:com.redhat.rhsa:tst:20100842003
    • comment Red Hat Enterprise Linux 6 ComputeNode is installed
      oval oval:com.redhat.rhsa:tst:20100842004
  • OR
    • AND
      • comment 389-ds-base is earlier than 0:1.2.11.15-11.el6
        oval oval:com.redhat.rhsa:tst:20130503005
      • comment 389-ds-base is signed with Red Hat redhatrelease2 key
        oval oval:com.redhat.rhsa:tst:20120813006
    • AND
      • comment 389-ds-base-devel is earlier than 0:1.2.11.15-11.el6
        oval oval:com.redhat.rhsa:tst:20130503009
      • comment 389-ds-base-devel is signed with Red Hat redhatrelease2 key
        oval oval:com.redhat.rhsa:tst:20120813008
    • AND
      • comment 389-ds-base-libs is earlier than 0:1.2.11.15-11.el6
        oval oval:com.redhat.rhsa:tst:20130503007
      • comment 389-ds-base-libs is signed with Red Hat redhatrelease2 key
        oval oval:com.redhat.rhsa:tst:20120813010
rhsa
id RHSA-2013:0503
released 2013-02-21
severity Moderate
title RHSA-2013:0503: 389-ds-base security, bug fix, and enhancement update (Moderate)
rpms
  • 389-ds-base-0:1.2.11.15-11.el6
  • 389-ds-base-devel-0:1.2.11.15-11.el6
  • 389-ds-base-libs-0:1.2.11.15-11.el6
refmap via4
bid 55690
confirm
misc https://bugzilla.redhat.com/show_bug.cgi?id=860772
mlist
  • [oss-security] 20120926 CVE Request -- 389-ds-base: Change on SLAPI_MODRDN_NEWSUPERIOR is not evaluated in ACL (ACL rules bypass possible)
  • [oss-security] 20120926 Re: CVE Request -- 389-ds-base: Change on SLAPI_MODRDN_NEWSUPERIOR is not evaluated in ACL (ACL rules bypass possible)
secunia 50713
Last major update 07-03-2013 - 23:09
Published 30-09-2012 - 23:26
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