Vulnerability Report

CVE-2016-4972

RCE

Title: Openstack Python-Muranoclient RCE

RCE

Proof Of Concept

No public PoC currently indexed for CVE-2016-4972.

CWE Category CWE-20
Published Date Sep 26, 2016
Modified Date May 06, 2026
Exploit Status Not Found
Score 9.8 CVSS v3.0
Exploit Probability (EPSS)
3.17%

Vulnerability Summary

CVE-2016-4972: 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.

Impacted Vendors

O
openstack 4

Reference Links

http://www.openwall.com/lists/oss-security/2016/06/23/8 https://bugs.launchpad.net/murano/+bug/1586079 https://bugs.launchpad.net/python-muranoclient/+bug/1586078 http://www.openwall.com/lists/oss-security/2016/06/23/8 https://bugs.launchpad.net/murano/+bug/1586079 https://bugs.launchpad.net/python-muranoclient/+bug/1586078
CVSS v3.0
Source Entity [email protected]
Severity CRITICAL
9.8
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v2.0
Source Entity [email protected]
Severity HIGH
7.5
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:L/Au:N/C:P/I:P/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2016-4972 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Stack

No specific products linked.