Race condition in Network Manager before 1.0.12 as packaged in Red Hat Enterprise Linux Desktop 7, Red Hat Enterprise Linux HPC Node 7, Red Hat Enterprise Linux Server 7, and Red Hat Enterprise Linux Workstation 7 allows local users to obtain sensitive connection information by reading temporary files during ifcfg and keyfile changes.

The remote MiracleLinux 7 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2016-1170:01 advisory.

    NetworkManager     NetworkManager is a system service that manages network interfaces and     connections based on user or automatic configuration. It supports     Ethernet, Bridge, Bond, VLAN, Team, InfiniBand, Wi-Fi, mobile broadband     (WWAN), PPPoE and other devices, and supports a variety of different VPN     services.
    NetworkManager-libreswan     This package contains software for integrating the libreswan VPN software     with NetworkManager and the GNOME desktop     libnl3     This package contains a convenience library to simplify     using the Linux kernel's netlink sockets interface for     network manipulation     network-manager-applet     This package contains a network control and status notification area applet     for use with NetworkManager.
    Security issues fixed with this release:
    CVE-2016-0764
    ** RESERVED **     This candidate has been reserved by an organization or individual that     will use it when announcing a new security problem.  When the     candidate has been publicized, the details for this candidate will be     provided.
    The following packages have been upgraded to a newer upstream version: NetworkManager (1.4.0),     NetworkManager-libreswan (1.2.4), network-manager-applet (1.4.0), libnl3 (3.2.28).
    Additional Changes:

Tenable has extracted the preceding description block directly from the MiracleLinux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - Race condition in Network Manager before 1.0.12 as packaged in Red Hat Enterprise Linux Desktop 7, Red Hat     Enterprise Linux HPC Node 7, Red Hat Enterprise Linux Server 7, and Red Hat Enterprise Linux Workstation 7     allows local users to obtain sensitive connection information by reading temporary files during ifcfg and     keyfile changes. (CVE-2016-0764)

Note that Nessus relies on the presence of the package as reported by the vendor.

According to the version of the libnl3 packages installed, the EulerOS installation on the remote host is affected by the following vulnerability :

  - A race condition vulnerability was discovered in     NetworkManager.Temporary files were created insecurely     when saving or updating connection settings, which     could allow local users to read connection secrets such     as VPN passwords or WiFi keys. (CVE-2016-0764)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The following packages have been upgraded to a newer upstream version:
NetworkManager (1.4.0), NetworkManager-libreswan (1.2.4), network-manager- applet (1.4.0), libnl3 (3.2.28).

Security Fix(es) :

  - A race condition vulnerability was discovered in     NetworkManager. Temporary files were created insecurely     when saving or updating connection settings, which could     allow local users to read connection secrets such as VPN     passwords or WiFi keys. (CVE-2016-0764)

Additional Changes :

An update for NetworkManager is now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having a security impact of Low. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link (s) in the References section.

NetworkManager is a system network service that manages network devices and connections, attempting to keep active network connectivity when available. Its capabilities include managing Ethernet, wireless, mobile broadband (WWAN), and PPPoE devices, as well as providing VPN integration with a variety of different VPN services.

The following packages have been upgraded to a newer upstream version:
NetworkManager (1.4.0), NetworkManager-libreswan (1.2.4), network-manager-applet (1.4.0), libnl3 (3.2.28). (BZ#1264552, BZ#1296058, BZ# 1032717, BZ#1271581)

Security Fix(es) :

* A race condition vulnerability was discovered in NetworkManager.
Temporary files were created insecurely when saving or updating connection settings, which could allow local users to read connection secrets such as VPN passwords or WiFi keys. (CVE-2016-0764)

Additional Changes :

For detailed information on changes in this release, see the Red Hat Enterprise Linux 7.3 Release Notes linked from the References section.

The remote Oracle Linux 7 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2016-2581 advisory.

    NetworkManager     [1:1.4.0-12]
    - device: consider a device with slaves configured (rh#1333983)

    [1:1.4.0-11]
    - build: add RPM dependency for exact glib2 version (rh#1378809)

    [1:1.4.0-10]
    - device: improve connection matching for assuming bond and infiniband (rh#1375558)

    [1:1.4.0-9]
    - clients: handle secret requests only for current connection (rh#1351272)
    - device: fix crash reapplying connection to slave devices (rh#1376784)
    - cli: fix autocompletion after ifname (rh#1375933)

    [1:1.4.0-8]
    - libnm: fix crash in nm_vpn_plugin_info_list_get_service_types() (rh#1374526)
    - device: wait for MAC address change before setting up interface (rh#1371623, rh#1374023)

    [1:1.4.0-7]
    - wifi: another fix activation failure due to error changing MAC address (rh#1371623, rh#1374023)
    - dhcp: fix race condition that may cause lost lease events and DHCP timeouts (rh#1373276)

    [1:1.4.0-6]
    - po: add translations (rh#1276476)

    [1:1.4.0-5]
    - libnm,nmtui: fix handling empty cloned-mac-address property (rh#1372799)
    - ibft: grant required CAP_SYS_ADMIN capabilities (rh#1371201)

    [1:1.4.0-4]
    - core: really fix wrong source interface for PropertiesChanged D-Bus signal (rh#1371920)

    [1:1.4.0-3]
    - wifi: fix activation failure due to error changing MAC address (rh#1371623)
    - core: fix wrong source interface for PropertiesChanged D-Bus signal (rh#1371920)
    - team: restore validation of JSON configuration (rh#1371967)
    - device: manage firewall zone for assumed persistent connections (rh#1366288)
    - device: don't let external changes cause a release of the slave (rh#1357738)

    [1:1.4.0-2]
    - ifcfg-rh: clear IP settings for slave connections (rh#1368761)
    - ifcfg-rh: accept TEAM connections also without DEVICETYPE setting (rh#1367180)

    [1:1.4.0-1]
    - Update to 1.4.0 release
    - cli: show username when interactively connecting to a wireless network (rh #1351272)
    - ifcfg-rh: ensure master is cleared when updating a connection (rh #1355656)
    - policy: always try to update kernel hostname (rh #1362542)
    - cli: return sane error message for D-Bus policy permission errors (rh #1362542)
    - device: don't flush addresses when unmanaging assumed devices (rh #1364393)
    - team: be more tolerant when handling invalid or empty configuration (rh #1366300)
    - act-request: queue failing the slave when master fails (rh #1367702)
    - vpn: fix ipv6 configuration of VPNs without a separate interface (rh #1368354)
    - vpn: properly discard routes with invalid prefix length (rh #1368355)

    [1:1.4.0-0.6.beta1]
    - logging: default to syslog (rh #1358335)

    [1:1.4.0-0.5.beta1]
    - Update to 1.4-beta1 release
    - core: fix setting hostname from DHCP (rh #1356015)
    - vlan: honor the REORDER_HDR flag (rh #1312281)
    - device: apply MTU setting also to devices without IPv4 configuration (rh #1364275)
    - bond: improved connection matching (rh #1304641)
    - team: check return value of g_dbus_connection_call_sync() (rh #1349749)

    [1:1.4.0-0.4.git20160727.9446481f]
    - Rebuild for fixed documentation directory in redhat-rpm-macros

    [1:1.4.0-0.3.git20160727.9446481f]
    - Update to a more recent 1.4.0 snapshot:
    - bond: fix defaults and be more liberal in accepting different formats of option values (rh #1352131)
    - bond: fix setting of 'lp_interval' option (rh #1348573)
    - device: don't try to generate ipv6ll address for disconnected devices (rh #1351633)
    - device: make sure we update system hostname when DHCP configuration changes (rh #1356015)
    - device: tune down warning about failure to set userspace IPv6LL on non-existing device (rh #1323571)
    - nmcli: add 'nmcli device modify' subcommand to do runtime configuration changes (rh #998000)
    - nmcli: crash on connection delete/down timeout (rh 355740)
    - nmcli: fix 8021x settings tab-completion (rh #1301226)
    - secrets: increase timeout for getting the secrets from the agent (rh #1349740)
    - team: keep device config property up to date with actual configuration (rh #1310435)
    - team: make synchronization with teamd more robust (rh #1257237)
    - vpn: don't merge DNS properties into parent device's configuration (rh #1348901)

    [1:1.4.0-0.3.git20160621.072358da]
    - Do not regenerate gtk-doc. Together with parallel make it may cause multilib conflicts

    [1:1.4.0-0.2.git20160621.072358da]
    - enable JSON validation configure option
    - Update to a more recent 1.3.0 snapshot:
    - team: check return value of g_dbus_connection_call_sync() (rh #1347015)

    [1:1.4.0-0.1.git20160606.b769b4df]
    - Update to a 1.3.0 snapshot:
    - cli: hide secret certificate blobs unless --show-secrets set (rh #1184530)
    - dns: add support for specifying dns priorities (rh #1228707)
    - core: wait for IPv6 DAD before completing activation (rh #1243958)
    - device: take care of default route of DHCP generated-assumed connections (rh #1265239)
    - team: improve matching of team connection upon service restart (rh #1294728)
    - device: apply MTU setting also to devices without IPv4 configuration (rh #1303968)
    - device: reconfigure IP addressing after bringing up device (rh #1309899)
    - team: expose current device configuration through D-Bus and nmcli (rh #1310435)
    - systemd: add 'After=dbus.service' to NetworkManager.service (rh #1311988)
    - cli: handle device failure when activating (rh #1312726)
    - core,libnm: remove gateway from connection if never-default is set (rh #1313091)
    - platform: remove padding for IP address lifetimes (rh #1318945)
    - manager: run dispatcher scripts on suspend/sleep (rh #1330694)
    - device: remove pending dhcp actions also in IP_DONE state (rh #1330893)
    - wwan: fixed multiple crashes (rh #1331395)
    - nmcli: fix tab completion for libreswan import (rh #1337300)

    [1:1.2.0-2]
    - write /etc/resolv.conf as file by default instead of symlink (rh#1337222)
    - rename package config-routing-rules to dispatcher-routing-rules (rh #1334876)

    [1:1.2.0-1]
    - Update to NetworkManager 1.2.0 release
    - vlan: keep the hardware address synchronized with parent device (rh #1325752)
    - bond: add more options (rh #1299103)

    [1:1.2.0-0.1.beta3]
    - Update to a more recent 1.2.0 snapshot

    [1:1.2.0-0.1.beta2]
    - Update to a 1.2.0 snapshot:
    - core: add a connection defaults section to NetworkManager.conf (rh #1164677)
    - dhcp: make timeout configurable (rh #1262922)
    - pppoe: set the firewall zone on the correct ip interface (rh #1110465)
    - device: properly roll back the device activation attempt on failure (rh #1270814)
    - nmcli: add monitor command (rh #1034158)
    - nmcli: fix shell completion of bluetooth device names (rh #1271271)
    - ipv4: add an option to send full FQDN in DHCP requests (rh #1255507)
    - core: fix a use-after-free() when activating a secondary VPN connection (rh #1277247)
    - wifi: fix bssid cache updating (rh #1094298)
    - vlan: honor the reorder-header flag (rh #1250225)
    - ipv4: do a duplicate address detection (rh #1259063)
    - core: add LLDP listener to the daemon and utilities (rh #1142898)
    - vpn: don't fail activation when plugin supports interactive mode, but the VPN daemon does not (rh     #1298732)
    - ipv6: readd the address when the MAC address changes (rh #1286105)
    - core: avoid generating excessively long names for virtual devices (rh #1300755)
    - nmcli: add connection import and export (rh #1034105)
    - vlan: fix matching of connections on assumption (rh #1276343)
    - core: fix matching of static route metrics on connection assumption (rh #1302532)
    - core: work around broken device drivers (AWS ENI) that initially have zero MAC address (rh #1288110)
    - infiniband: set the link down when changing mode, some drivers need that (rh #1281301)
    - infiniband: retry autoactivation of partitions when parent device changes (rh #1275875)


    libnl3     [3.2.28-2]
    - route: fix nl_object_identical() comparing AF_INET addresses (rh #1370503)

    [3.2.28-1]
    - update to latest upstream release 3.2.28 (rh #1296058)

    [3.2.28-0.1]
    - update to latest upstream release 3.2.28-rc1 (rh #1296058)

    [3.2.27-1]
    - rebase package to upstream version 3.2.27 (rh #1296058)

    network-manager-applet     [1.4.0-2]
    - c-e: fix team page with older GTK and jansson (rh #1079465)

    [1.4.0-1]
    - Update to network-manager-applet 1.4.0 release
    - c-e: add editor for teaming devices (rh #1079465)

    [1.2.2-2]
    - c-e: fix tab stop for Create button (rh#1339565)

    [1.2.2-1]
    - Update to network-manager-applet 1.2.2 release

    [1.2.0-1]
    - Update to network-manager-applet 1.2.0 release

    [1.2.0-0.1.beta3]
    - Rebase to 1.2-beta3

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Severity
289400	MiracleLinux 7 : NetworkManager-1.4.0-12.el7, libnl3-3.2.28-2.el7, network-manager-applet-1.4.0-2.0.1.el7.AXS7, NetworkManager-libreswan-1.2.4-1.el7 (AXSA:2016-1170:01)	Nessus	Miracle Linux Local Security Checks	medium
219473	Linux Distros Unpatched Vulnerability : CVE-2016-0764	Nessus	Misc.	medium
99829	EulerOS 2.0 SP1 : libnl3 (EulerOS-SA-2016-1067)	Nessus	Huawei Local Security Checks	medium
95833	Scientific Linux Security Update : NetworkManager on SL7.x x86_64 (20161103)	Nessus	Scientific Linux Local Security Checks	medium
95328	CentOS 7 : NetworkManager / NetworkManager-libreswan / libnl3 / network-manager-applet (CESA-2016:2581)	Nessus	CentOS Local Security Checks	medium
94703	Oracle Linux 7 : NetworkManager (ELSA-2016-2581)	Nessus	Oracle Linux Local Security Checks	medium
94544	RHEL 7 : NetworkManager (RHSA-2016:2581)	Nessus	Red Hat Local Security Checks	medium

Detections

Analytics

CVE-2016-0764

medium

Tenable Plugins

medium

medium

medium

medium

medium

medium

medium