CVE-2020-9543Public exploitNetwork attack vector

Cross-project resource manipulation via unscoped network lookup

Published Mar 12, 2020 · Updated Aug 4, 2024

Authorization bypass in OpenStack Manila allows remote authenticated users to access and manipulate another project's share networks. The share-network database query used by the API looks up an attacker-supplied UUID without restricting the result to the authenticated project in 7.4.0 and earlier, 8.0.0 through 8.1.0, and 9.0.0 through 9.1.0. Possession of another project's share-network ID is required and enables viewing or modifying its networks and subnets, including creating shares and share groups.

CVSS severity8.3
High
EPSS probability1.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in OpenStack Manila allows remote authenticated users to access and manipulate another project's share networks. The share-network database query used by the API looks up an attacker-supplied UUID without restricting the result to the authenticated project in 7.4.0 and earlier, 8.0.0 through 8.1.0, and 9.0.0 through 9.1.0. Possession of another project's share-network ID is required and enables viewing or modifying its networks and subnets, including creating shares and share groups.

The record

CVE
CVE-2020-9543
Published
Mar 12, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-276, T1078.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 12, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
6.5NIST NVDAV:N/AC:L/Au:S/C:P/I:P/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-276Incorrect Default Permissions
T1078.004Valid Accounts: Cloud Accounts

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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