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Fencer Intel
high 7.5

CVE-2015-5303 json

OpenStack TripleO Heat templates spoof metadata requests

published 10y ago modified 4mo ago also GHSA-m94p-8942-pm49 , PYSEC-2016-35 , EUVD-2016-0035

cvss
7.5
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.7%
EPSS 1.7% chance of exploitation in 30 days, percentile 77%
public exploits
0
none known

Summary

The TripleO Heat templates (tripleo-heat-templates), when deployed via the commandline interface, allow remote attackers to spoof OpenStack Networking metadata requests by leveraging knowledge of the default value of the NeutronMetadataProxySharedSecret parameter.

Patch / fix

  • pypi tripleo-heat-templates 0.8.9, 0.8.10
  • python-rdomanager-oscplugin openstack-director 7 0.0.10-22.el7ost
  • openstack-tripleo-heat-templates openstack-director 7 0.8.6-94.el7ost

red hat advisories RHSA-2015:2650

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2015-5303 updated cvss 4.3

python-rdomanager-oscplugin: NeutronMetadataProxySharedSecret parameter uses default value

  • Red Hat OpenStack 7.0 Director for RHEL 7 python-rdomanager-oscplugin 0.0.10-22.el7ost, openstack-tripleo-heat-templates 0.8.6-94.el7ost
    fixed: vendor fix RHSA-2015:2650
  • Red Hat OpenStack Platform 8 (Liberty) Director python-tripleoclient
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.70% chance of exploitation in the next 30 days, higher than 77% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:P/A:N
GitHub 3.0 7.5 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected packages

ecosystem package affected fixed in
pypi tripleo-heat-templates
<0.8.10
<0.8.9
0.8.10
0.8.9

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.