ID CVE-2013-6412
Summary The transform_save function in transform.c in Augeas 1.0.0 through 1.1.0 does not properly calculate the permission values when the umask contains a "7," which causes world-writable permissions to be used for new files and allows local users to modify the files via unspecified vectors.
References
Vulnerable Configurations
  • Augeas 1.0.0
    cpe:2.3:a:augeas:augeas:1.0.0
  • Augeas 1.1.0
    cpe:2.3:a:augeas:augeas:1.1.0
CVSS
Base: 4.6 (as of 23-01-2014 - 12:55)
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
LOCAL LOW NONE
Impact
ConfidentialityIntegrityAvailability
PARTIAL PARTIAL PARTIAL
nessus via4
  • NASL family SuSE Local Security Checks
    NASL id SUSE_11_AUGEAS-140730.NASL
    description Augeas has been updated to fix a symlink overwrite problem. (CVE-2012-0786 / CVE-2013-6412) Also a bug has been fixed where 'augtool -s set was failing'. (bnc#876044) Additionally parsing the multipath configuration has been fixed. bnc#871323
    last seen 2018-09-01
    modified 2014-08-14
    plugin id 77196
    published 2014-08-14
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=77196
    title SuSE 11.3 Security Update : augeas (SAT Patch Number 9574)
  • NASL family CentOS Local Security Checks
    NASL id CENTOS_RHSA-2014-0044.NASL
    description Updated augeas packages that fix one security issue 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. Augeas is a utility for editing configuration. Augeas parses configuration files in their native formats and transforms them into a tree. Configuration changes are made by manipulating this tree and saving it back into native configuration files. Augeas also uses 'lenses' as basic building blocks for establishing the mapping from files into the Augeas tree and back. A flaw was found in the way Augeas handled certain umask settings when creating new configuration files. This flaw could result in configuration files being created as world-writable, allowing unprivileged local users to modify their content. (CVE-2013-6412) This issue was discovered by the Red Hat Security Response Team. All augeas users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. All running applications using augeas must be restarted for the update to take effect.
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 72045
    published 2014-01-21
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=72045
    title CentOS 6 : augeas (CESA-2014:0044)
  • NASL family Mandriva Local Security Checks
    NASL id MANDRIVA_MDVSA-2014-022.NASL
    description Updated augeas packages fix security vulnerabilities : Multiple flaws were found in the way Augeas handled configuration files when updating them. An application using Augeas to update configuration files in a directory that is writable to by a different user (for example, an application running as root that is updating files in a directory owned by a non-root service user) could have been tricked into overwriting arbitrary files or leaking information via a symbolic link or mount point attack (CVE-2012-0786, CVE-2012-0787). A flaw was found in the way Augeas handled certain umask settings when creating new configuration files. This flaw could result in configuration files being created as world-writable, allowing unprivileged local users to modify their content (CVE-2013-6412).
    last seen 2019-02-21
    modified 2019-01-02
    plugin id 72134
    published 2014-01-27
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=72134
    title Mandriva Linux Security Advisory : augeas (MDVSA-2014:022)
  • NASL family Scientific Linux Local Security Checks
    NASL id SL_20140120_AUGEAS_ON_SL6_X.NASL
    description A flaw was found in the way Augeas handled certain umask settings when creating new configuration files. This flaw could result in configuration files being created as world-writable, allowing unprivileged local users to modify their content. (CVE-2013-6412) All running applications using augeas must be restarted for the update to take effect.
    last seen 2019-02-21
    modified 2018-12-28
    plugin id 72083
    published 2014-01-22
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=72083
    title Scientific Linux Security Update : augeas on SL6.x i386/x86_64
  • NASL family Amazon Linux Local Security Checks
    NASL id ALA_ALAS-2014-286.NASL
    description A flaw was found in the way Augeas handled certain umask settings when creating new configuration files. This flaw could result in configuration files being created as world-writable, allowing unprivileged local users to modify their content. (CVE-2013-6412)
    last seen 2019-02-21
    modified 2018-04-18
    plugin id 72304
    published 2014-02-05
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=72304
    title Amazon Linux AMI : augeas (ALAS-2014-286)
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2014-2452.NASL
    description Update to Augeas 1.2.0 : - resolves CVE-2013-6412 - changelog: https://github.com/hercules-team/augeas/blob/master/NE WS 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 2015-10-19
    plugin id 73032
    published 2014-03-17
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=73032
    title Fedora 20 : augeas-1.2.0-1.fc20 (2014-2452)
  • NASL family Oracle Linux Local Security Checks
    NASL id ORACLELINUX_ELSA-2014-0044.NASL
    description From Red Hat Security Advisory 2014:0044 : Updated augeas packages that fix one security issue 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. Augeas is a utility for editing configuration. Augeas parses configuration files in their native formats and transforms them into a tree. Configuration changes are made by manipulating this tree and saving it back into native configuration files. Augeas also uses 'lenses' as basic building blocks for establishing the mapping from files into the Augeas tree and back. A flaw was found in the way Augeas handled certain umask settings when creating new configuration files. This flaw could result in configuration files being created as world-writable, allowing unprivileged local users to modify their content. (CVE-2013-6412) This issue was discovered by the Red Hat Security Response Team. All augeas users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. All running applications using augeas must be restarted for the update to take effect.
    last seen 2019-02-21
    modified 2018-07-18
    plugin id 72058
    published 2014-01-21
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=72058
    title Oracle Linux 6 : augeas (ELSA-2014-0044)
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2014-2445.NASL
    description Update to Augeas 1.2.0 : - resolves CVE-2013-6412 - changelog: https://github.com/hercules-team/augeas/blob/master/NE WS 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 2015-10-19
    plugin id 73031
    published 2014-03-17
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=73031
    title Fedora 19 : augeas-1.2.0-1.fc19 (2014-2445)
  • NASL family Debian Local Security Checks
    NASL id DEBIAN_DLA-28.NASL
    description Multiple race conditions were discovered in augeas when saving configuration files which expose it to symlink attacks. Write access to the directory where the configuration file is located is required by the attacker. NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA 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 2018-07-06
    plugin id 82176
    published 2015-03-26
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=82176
    title Debian DLA-28-1 : augeas security update
  • NASL family Red Hat Local Security Checks
    NASL id REDHAT-RHSA-2014-0044.NASL
    description Updated augeas packages that fix one security issue 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. Augeas is a utility for editing configuration. Augeas parses configuration files in their native formats and transforms them into a tree. Configuration changes are made by manipulating this tree and saving it back into native configuration files. Augeas also uses 'lenses' as basic building blocks for establishing the mapping from files into the Augeas tree and back. A flaw was found in the way Augeas handled certain umask settings when creating new configuration files. This flaw could result in configuration files being created as world-writable, allowing unprivileged local users to modify their content. (CVE-2013-6412) This issue was discovered by the Red Hat Security Response Team. All augeas users are advised to upgrade to these updated packages, which contain a backported patch to correct this issue. All running applications using augeas must be restarted for the update to take effect.
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 72060
    published 2014-01-21
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=72060
    title RHEL 6 : augeas (RHSA-2014:0044)
redhat via4
advisories
bugzilla
id 1034261
title CVE-2013-6412 augeas: incorrect permissions set on newly created 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 augeas is earlier than 0:1.0.0-5.el6_5.1
        oval oval:com.redhat.rhsa:tst:20140044005
      • comment augeas is signed with Red Hat redhatrelease2 key
        oval oval:com.redhat.rhsa:tst:20131537006
    • AND
      • comment augeas-devel is earlier than 0:1.0.0-5.el6_5.1
        oval oval:com.redhat.rhsa:tst:20140044007
      • comment augeas-devel is signed with Red Hat redhatrelease2 key
        oval oval:com.redhat.rhsa:tst:20131537008
    • AND
      • comment augeas-libs is earlier than 0:1.0.0-5.el6_5.1
        oval oval:com.redhat.rhsa:tst:20140044009
      • comment augeas-libs is signed with Red Hat redhatrelease2 key
        oval oval:com.redhat.rhsa:tst:20131537010
rhsa
id RHSA-2014:0044
released 2014-01-20
severity Moderate
title RHSA-2014:0044: augeas security update (Moderate)
rpms
  • augeas-0:1.0.0-5.el6_5.1
  • augeas-devel-0:1.0.0-5.el6_5.1
  • augeas-libs-0:1.0.0-5.el6_5.1
refmap via4
confirm
Last major update 23-01-2014 - 12:55
Published 22-01-2014 - 19:55
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