Vulnerability CVE-2016-4972

Vulnerability Name:

CVE-2016-4972 (CCN-114396)

Assigned:

2016-06-23

Published:

2016-06-23

Updated:

2016-09-28

Summary:

OpenStack Murano before 1.0.3 (liberty) and 2.x before 2.0.1 (mitaka), Murano-dashboard before 1.0.3 (liberty) and 2.x before 2.0.1 (mitaka), and python-muranoclient before 0.7.3 (liberty) and 0.8.x before 0.8.5 (mitaka) improperly use loaders inherited from yaml.Loader when parsing MuranoPL and UI files, which allows remote attackers to create arbitrary Python objects and execute arbitrary code via crafted extended YAML tags in UI definitions in packages.

CVSS v3 Severity:

9.8 Critical (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
8.5 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): High Availibility (A): High

7.3 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L)
6.4 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): Low Integrity (I): Low Availibility (A): Low

CVSS v2 Severity:

7.5 High (CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Authentication (Au): None
Impact Metrics:	Confidentiality (C): Partial Integrity (I): Partial Availibility (A): Partial

7.5 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Athentication (Au): None
Impact Metrics:	Confidentiality (C): Partial Integrity (I): Partial Availibility (A): Partial

Vulnerability Type:

CWE-20

Vulnerability Consequences:

Gain Access

References:

Source: MITRE
Type: CNA
CVE-2016-4972

Source: CCN
Type: oss-sec Mailing List, Thu, 23 Jun 2016 20:42:13 +0300
RCE vulnerability in Openstack Murano using insecure YAML tags (CVE-2016-4972)

Source: MLIST
Type: Patch, Third Party Advisory
[oss-security] 20160623 RCE vulnerability in Openstack Murano using insecure YAML tags (CVE-2016-4972)

Source: CONFIRM
Type: Patch, Vendor Advisory
https://bugs.launchpad.net/murano/+bug/1586079

Source: CONFIRM
Type: Patch, Vendor Advisory
https://bugs.launchpad.net/python-muranoclient/+bug/1586078

Source: XF
Type: UNKNOWN
openstack-murano-cve20164972-code-exec(114396)

Source: CCN
Type: Openstack Web site
Murano

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2016-4972

Vulnerable Configuration:

Configuration 1:

cpe:/a:openstack:mitaka-murano:*:*:*:*:*:*:*:* (Version <= 2.0.0)

OR cpe:/a:openstack:murano:*:*:*:*:*:*:*:* (Version <= 1.0.2)

OR cpe:/a:openstack:murano-dashboard:*:*:*:*:*:*:*:* (Version <= 1.0.2)

OR cpe:/a:openstack:python-muranoclient:*:*:*:*:*:*:*:* (Version <= 0.7.2)

Configuration CCN 1:

cpe:/a:openstack:murano:1.0.2:*:*:*:*:*:*:*

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:com.ubuntu.disco:def:201649720000000	V	CVE-2016-4972 on Ubuntu 19.04 (disco) - medium.	2016-09-26
oval:com.ubuntu.artful:def:20164972000	V	CVE-2016-4972 on Ubuntu 17.10 (artful) - medium.	2016-09-26
oval:com.ubuntu.cosmic:def:201649720000000	V	CVE-2016-4972 on Ubuntu 18.10 (cosmic) - medium.	2016-09-26
oval:com.ubuntu.bionic:def:20164972000	V	CVE-2016-4972 on Ubuntu 18.04 LTS (bionic) - medium.	2016-09-26
oval:com.ubuntu.bionic:def:201649720000000	V	CVE-2016-4972 on Ubuntu 18.04 LTS (bionic) - medium.	2016-09-26
oval:com.ubuntu.cosmic:def:20164972000	V	CVE-2016-4972 on Ubuntu 18.10 (cosmic) - medium.	2016-09-26
oval:com.ubuntu.xenial:def:201649720000000	V	CVE-2016-4972 on Ubuntu 16.04 LTS (xenial) - medium.	2016-09-26
oval:com.ubuntu.xenial:def:20164972000	V	CVE-2016-4972 on Ubuntu 16.04 LTS (xenial) - medium.	2016-09-26

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