OpenStack Neutron up to 16.4.0/17.2.0/18.1.0 dnsmasq extra_dhcp_opts config
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
5.3 | $0-$5k | 0.00 |
A vulnerability, which was classified as critical, was found in OpenStack Neutron up to 16.4.0/17.2.0/18.1.0 (Cloud Software). This affects some unknown functionality of the component dnsmasq. The manipulation of the argument extra_dhcp_opts
with an unknown input leads to a config vulnerability. CWE is classifying the issue as CWE-16. This is going to have an impact on confidentiality, integrity, and availability.
The weakness was published 09/01/2021 as OSSA-2021-005. The advisory is shared at security.openstack.org. This vulnerability is uniquely identified as CVE-2021-40085. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1592.004 for this issue.
Upgrading to version 16.4.1, 17.2.1 or 18.1.1 eliminates this vulnerability.
Product
Type
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 5.5VulDB Meta Temp Score: 5.3
VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: ConfigCWE: CWE-16
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Partially
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: Neutron 16.4.1/17.2.1/18.1.1
Timeline
08/25/2021 🔍09/01/2021 🔍
09/01/2021 🔍
09/04/2021 🔍
Sources
Vendor: openstack.orgAdvisory: OSSA-2021-005
Status: Confirmed
CVE: CVE-2021-40085 (🔍)
Entry
Created: 09/01/2021 06:52Updated: 09/04/2021 01:03
Changes: 09/01/2021 06:52 (41), 09/04/2021 01:03 (2)
Complete: 🔍
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