ID CVE-2011-2176
Summary GNOME NetworkManager before 0.8.6 does not properly enforce the auth_admin element in PolicyKit, which allows local users to bypass intended wireless network sharing restrictions via unspecified vectors.
References
Vulnerable Configurations
  • cpe:2.3:a:gnome:networkmanager:0.8.4
    cpe:2.3:a:gnome:networkmanager:0.8.4
  • GNOME Network Manager 0.8.2
    cpe:2.3:a:gnome:networkmanager:0.8.2
  • GNOME Network Manager 0.8.1
    cpe:2.3:a:gnome:networkmanager:0.8.1
  • GNOME Network Manager 0.7.2
    cpe:2.3:a:gnome:networkmanager:0.7.2
  • GNOME Network Manager 0.7.1
    cpe:2.3:a:gnome:networkmanager:0.7.1
  • GNOME Network Manager 0.7.0
    cpe:2.3:a:gnome:networkmanager:0.7.0
  • cpe:2.3:a:gnome:networkmanager:0.6.6
    cpe:2.3:a:gnome:networkmanager:0.6.6
  • GNOME Network Manager 0.6.2
    cpe:2.3:a:gnome:networkmanager:0.6.2
  • GNOME Network Manager 0.6.1
    cpe:2.3:a:gnome:networkmanager:0.6.1
  • GNOME Network Manager 0.6.0
    cpe:2.3:a:gnome:networkmanager:0.6.0
  • GNOME Network Manager 0.5.1
    cpe:2.3:a:gnome:networkmanager:0.5.1
  • GNOME Network Manager 0.5.0
    cpe:2.3:a:gnome:networkmanager:0.5.0
  • cpe:2.3:a:gnome:networkmanager:0.4.1
    cpe:2.3:a:gnome:networkmanager:0.4.1
  • GNOME Network Manager 0.3.1
    cpe:2.3:a:gnome:networkmanager:0.3.1
  • cpe:2.3:a:gnome:networkmanager:0.3.0
    cpe:2.3:a:gnome:networkmanager:0.3.0
  • cpe:2.3:a:gnome:networkmanager:0.2.0
    cpe:2.3:a:gnome:networkmanager:0.2.0
CVSS
Base: 2.1 (as of 05-09-2011 - 16:07)
Impact:
Exploitability:
CWE CWE-287
CAPEC
  • Authentication Abuse
    An attacker obtains unauthorized access to an application, service or device either through knowledge of the inherent weaknesses of an authentication mechanism, or by exploiting a flaw in the authentication scheme's implementation. In such an attack an authentication mechanism is functioning but a carefully controlled sequence of events causes the mechanism to grant access to the attacker. This attack may exploit assumptions made by the target's authentication procedures, such as assumptions regarding trust relationships or assumptions regarding the generation of secret values. This attack differs from Authentication Bypass attacks in that Authentication Abuse allows the attacker to be certified as a valid user through illegitimate means, while Authentication Bypass allows the user to access protected material without ever being certified as an authenticated user. This attack does not rely on prior sessions established by successfully authenticating users, as relied upon for the "Exploitation of Session Variables, Resource IDs and other Trusted Credentials" attack patterns.
  • Exploiting Trust in Client (aka Make the Client Invisible)
    An attack of this type exploits a programs' vulnerabilities in client/server communication channel authentication and data integrity. It leverages the implicit trust a server places in the client, or more importantly, that which the server believes is the client. An attacker executes this type of attack by placing themselves in the communication channel between client and server such that communication directly to the server is possible where the server believes it is communicating only with a valid client. There are numerous variations of this type of attack.
  • Utilizing REST's Trust in the System Resource to Register Man in the Middle
    This attack utilizes a REST(REpresentational State Transfer)-style applications' trust in the system resources and environment to place man in the middle once SSL is terminated. Rest applications premise is that they leverage existing infrastructure to deliver web services functionality. An example of this is a Rest application that uses HTTP Get methods and receives a HTTP response with an XML document. These Rest style web services are deployed on existing infrastructure such as Apache and IIS web servers with no SOAP stack required. Unfortunately from a security standpoint, there frequently is no interoperable identity security mechanism deployed, so Rest developers often fall back to SSL to deliver security. In large data centers, SSL is typically terminated at the edge of the network - at the firewall, load balancer, or router. Once the SSL is terminated the HTTP request is in the clear (unless developers have hashed or encrypted the values, but this is rare). The attacker can utilize a sniffer such as Wireshark to snapshot the credentials, such as username and password that are passed in the clear once SSL is terminated. Once the attacker gathers these credentials, they can submit requests to the web service provider just as authorized user do. There is not typically an authentication on the client side, beyond what is passed in the request itself so once this is compromised, then this is generally sufficient to compromise the service's authentication scheme.
  • Man in the Middle Attack
    This type of attack targets the communication between two components (typically client and server). The attacker places himself in the communication channel between the two components. Whenever one component attempts to communicate with the other (data flow, authentication challenges, etc.), the data first goes to the attacker, who has the opportunity to observe or alter it, and it is then passed on to the other component as if it was never intercepted. This interposition is transparent leaving the two compromised components unaware of the potential corruption or leakage of their communications. The potential for Man-in-the-Middle attacks yields an implicit lack of trust in communication or identify between two components.
Access
VectorComplexityAuthentication
LOCAL LOW NONE
Impact
ConfidentialityIntegrityAvailability
NONE PARTIAL NONE
nessus via4
  • NASL family Mandriva Local Security Checks
    NASL id MANDRIVA_MDVSA-2011-171.NASL
    description Security issues were identified and fixed in networkmanager : GNOME NetworkManager before 0.8.6 does not properly enforce the auth_admin element in PolicyKit, which allows local users to bypass intended wireless network sharing restrictions via unspecified vectors (CVE-2011-2176). Incomplete blacklist vulnerability in the svEscape function in settings/plugins/ifcfg-rh/shvar.c in the ifcfg-rh plug-in for GNOME NetworkManager 0.9.1, 0.9.0, 0.8.1, and possibly other versions, when PolicyKit is configured to allow users to create new connections, allows local users to execute arbitrary commands via a newline character in the name for a new network connection, which is not properly handled when writing to the ifcfg file (CVE-2011-3364). Instead of patching networkmanager, the latest 0.8.6.0 stable version is being provided due to the large amount of bugs fixed upstream. Also the networkmanager-applet, networkmanager-openconnect, networkmanager-openvpn, networkmanager-pptp, networkmanager-vpnc is being provided with their latest 0.8.6.0 stable versions. The provided packages solves these security vulnerabilities.
    last seen 2019-02-21
    modified 2019-01-02
    plugin id 61935
    published 2012-09-06
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=61935
    title Mandriva Linux Security Advisory : networkmanager (MDVSA-2011:171)
  • NASL family Oracle Linux Local Security Checks
    NASL id ORACLELINUX_ELSA-2011-0930.NASL
    description From Red Hat Security Advisory 2011:0930 : Updated NetworkManager 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. NetworkManager is a network link manager that attempts to keep a wired or wireless network connection active at all times. It was found that NetworkManager did not properly enforce PolicyKit settings controlling the permissions to configure wireless network sharing. A local, unprivileged user could use this flaw to bypass intended PolicyKit restrictions, allowing them to enable wireless network sharing. (CVE-2011-2176) Users of NetworkManager should upgrade to these updated packages, which contain a backported patch to correct this issue. Running instances of NetworkManager must be restarted ('service NetworkManager restart') for this update to take effect.
    last seen 2019-02-21
    modified 2018-07-18
    plugin id 68306
    published 2013-07-12
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=68306
    title Oracle Linux 6 : NetworkManager (ELSA-2011-0930)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_11_4_NETWORKMANAGER-111104.NASL
    description NetworkManager did not pin a certificate's subject to an ESSID. A rogue access point could therefore be used to conduct MITM attacks by using any other valid certificate issued by same CA as used in the original network (CVE-2006-7246). Please note that existing WPA2 Enterprise connections need to be deleted and re-created to take advantage of the new security checks. NetworkManager did not honor the PolicyKit auth_admin setting when creating Ad-Hoc wireless networks (CVE-2011-2176)
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 75976
    published 2014-06-13
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=75976
    title openSUSE Security Update : NetworkManager (openSUSE-SU-2011:1273-1)
  • NASL family Red Hat Local Security Checks
    NASL id REDHAT-RHSA-2011-0930.NASL
    description Updated NetworkManager 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. NetworkManager is a network link manager that attempts to keep a wired or wireless network connection active at all times. It was found that NetworkManager did not properly enforce PolicyKit settings controlling the permissions to configure wireless network sharing. A local, unprivileged user could use this flaw to bypass intended PolicyKit restrictions, allowing them to enable wireless network sharing. (CVE-2011-2176) Users of NetworkManager should upgrade to these updated packages, which contain a backported patch to correct this issue. Running instances of NetworkManager must be restarted ('service NetworkManager restart') for this update to take effect.
    last seen 2019-02-21
    modified 2018-11-26
    plugin id 55585
    published 2011-07-13
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=55585
    title RHEL 6 : NetworkManager (RHSA-2011:0930)
  • NASL family SuSE Local Security Checks
    NASL id SUSE_11_3_NETWORKMANAGER-111104.NASL
    description NetworkManager did not pin a certificate's subject to an ESSID. A rogue access point could therefore be used to conduct MITM attacks by using any other valid certificate issued by same CA as used in the original network (CVE-2006-7246). Please note that existing WPA2 Enterprise connections need to be deleted and re-created to take advantage of the new security checks. NetworkManager did not honor the PolicyKit auth_admin setting when creating Ad-Hoc wireless networks (CVE-2011-2176)
    last seen 2019-02-21
    modified 2018-11-10
    plugin id 75683
    published 2014-06-13
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=75683
    title openSUSE Security Update : NetworkManager (openSUSE-SU-2011:1273-1)
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2011-8612.NASL
    description This update fixes the security issue for creating shared WiFi networks. It's been tracked by #709662 - CVE-2011-2176. Before this update, NetworkManager didn't respect PolicyKit policies for creating shared WiFi networks: actions org.freedesktop.network-manager-settings.system.wifi.share.open and org.freedesktop.network-manager-settings.system.wifi.share.protected in /usr/share/polkit-1/actions/org.freedesktop.network-manager-settings.s ystem.policy file. Thus, users could create shared WiFi networks even if it was disabled via the PolicyKit setting. This update fixes this issue. Be aware, that the default policies still allow creating shared WiFi networks. You should modify yes to auth_admin if you require authorization with root password, or to no to disallow creating the networks altogether through the above PolicyKit actions. In addition, this update fixes other bugs by updating NetworkManager to git snaphot as of 2011-06-22. - core: fix up checks for s390 CTC device type (bgo #649025) - core: recognize platform 'gadget' devices - core: only send hostname without domain as host-name option (rh #694758) - core: clear 'invalid' connection tag when cable is re-plugged - core: fix crash requesting system VPN secrets (bgo #651710) - core: add MAC address blacklisting feature for WiFi and ethernet connections - core: allow _ as a valid character for GSM APNs - wifi: always fix up Ad-Hoc frequency when connecting (rh #699203) - keyfile: better handle cert/key files that don't exist (bgo #649807) - keyfile: ignore .pem and .der file changes - editor: improve usability for entering manual IP addresses and routes (rh #698199) (bgo #607678) - editor: don't crash in edit_done_cb() when connection is invalid (rh #704848) - editor: don't allow inserting 0.0.0.0 as destination and netmask for IPv4 routes - editor: allow _ as a valid character for GSM APNs - applet: ensure entries activate default button if Enter is pressed (rh #622487) - applet: add gsm registration status notification - applet: filter APN entry characters in mobile-wizard 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 2018-11-28
    plugin id 55842
    published 2011-08-15
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=55842
    title Fedora 14 : NetworkManager-0.8.4-2.git20110622.fc14 (2011-8612)
  • NASL family Scientific Linux Local Security Checks
    NASL id SL_20110712_NETWORKMANAGER_ON_SL6_X.NASL
    description NetworkManager is a network link manager that attempts to keep a wired or wireless network connection active at all times. It was found that NetworkManager did not properly enforce PolicyKit settings controlling the permissions to configure wireless network sharing. A local, unprivileged user could use this flaw to bypass intended PolicyKit restrictions, allowing them to enable wireless network sharing. (CVE-2011-2176) Users of NetworkManager should upgrade to these updated packages, which contain a backported patch to correct this issue. Running instances of NetworkManager must be restarted ('service NetworkManager restart') for this update to take effect.
    last seen 2019-02-21
    modified 2018-12-31
    plugin id 61081
    published 2012-08-01
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=61081
    title Scientific Linux Security Update : NetworkManager on SL6.x i386/x86_64
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2011-9005.NASL
    description This update ensures that users are authorized to start shared wifi connections, and includes fixes to retry failed connections after a period of time. It also ensures that 'always ask' 802.1x passwords (like RSA Token codes) are asked for again immediately if they fail, and adds the capability to blacklist certain devices from using a wired or wifi connection. 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 2018-11-28
    plugin id 55529
    published 2011-07-07
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=55529
    title Fedora 15 : NetworkManager-0.8.9997-5.git20110702.fc15 (2011-9005)
redhat via4
advisories
bugzilla
id 709662
title CVE-2011-2176 NetworkManager: Did not honour PolicyKit auth_admin action element by creation of Ad-Hoc wireless networks
oval
AND
  • OR
    • comment Red Hat Enterprise Linux 6 Client is installed
      oval oval:com.redhat.rhba:tst:20111656001
    • comment Red Hat Enterprise Linux 6 Server is installed
      oval oval:com.redhat.rhba:tst:20111656002
    • comment Red Hat Enterprise Linux 6 Workstation is installed
      oval oval:com.redhat.rhba:tst:20111656003
    • comment Red Hat Enterprise Linux 6 ComputeNode is installed
      oval oval:com.redhat.rhba:tst:20111656004
  • OR
    • AND
      • comment NetworkManager is earlier than 1:0.8.1-9.el6_1.1
        oval oval:com.redhat.rhsa:tst:20110930005
      • comment NetworkManager is signed with Red Hat redhatrelease2 key
        oval oval:com.redhat.rhsa:tst:20110930006
    • AND
      • comment NetworkManager-devel is earlier than 1:0.8.1-9.el6_1.1
        oval oval:com.redhat.rhsa:tst:20110930013
      • comment NetworkManager-devel is signed with Red Hat redhatrelease2 key
        oval oval:com.redhat.rhsa:tst:20110930014
    • AND
      • comment NetworkManager-glib is earlier than 1:0.8.1-9.el6_1.1
        oval oval:com.redhat.rhsa:tst:20110930009
      • comment NetworkManager-glib is signed with Red Hat redhatrelease2 key
        oval oval:com.redhat.rhsa:tst:20110930010
    • AND
      • comment NetworkManager-glib-devel is earlier than 1:0.8.1-9.el6_1.1
        oval oval:com.redhat.rhsa:tst:20110930011
      • comment NetworkManager-glib-devel is signed with Red Hat redhatrelease2 key
        oval oval:com.redhat.rhsa:tst:20110930012
    • AND
      • comment NetworkManager-gnome is earlier than 1:0.8.1-9.el6_1.1
        oval oval:com.redhat.rhsa:tst:20110930007
      • comment NetworkManager-gnome is signed with Red Hat redhatrelease2 key
        oval oval:com.redhat.rhsa:tst:20110930008
rhsa
id RHSA-2011:0930
released 2011-07-12
severity Moderate
title RHSA-2011:0930: NetworkManager security update (Moderate)
rpms
  • NetworkManager-1:0.8.1-9.el6_1.1
  • NetworkManager-devel-1:0.8.1-9.el6_1.1
  • NetworkManager-glib-1:0.8.1-9.el6_1.1
  • NetworkManager-glib-devel-1:0.8.1-9.el6_1.1
  • NetworkManager-gnome-1:0.8.1-9.el6_1.1
refmap via4
confirm
fedora FEDORA-2011-8612
mandriva MDVSA-2011:171
sectrack 1025711
secunia 44858
Last major update 18-01-2012 - 22:57
Published 02-09-2011 - 19:55
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