Authenticated configuration bypass via incorrect denylist comparison
Published Jan 20, 2021 · Updated Nov 12, 2024
Configuration bypass in Cisco Data Center Network Manager before 11.4(1) allows remote authenticated users to modify server settings. A REST API endpoint compares attacker-controlled input incorrectly against a denylist, allowing a crafted request to evade the intended security control. A low-privilege account and network access to the API are required; successful exploitation changes default server configuration settings.
Summary
What happened
Configuration bypass in Cisco Data Center Network Manager before 11.4(1) allows remote authenticated users to modify server settings. A REST API endpoint compares attacker-controlled input incorrectly against a denylist, allowing a crafted request to evade the intended security control. A low-privilege account and network access to the API are required; successful exploitation changes default server configuration settings.
The record
- CVE
- CVE-2021-1135
- Published
- Jan 20, 2021
- Updated
- Nov 12, 2024
- Vendor
- ClamAV
- Product
- Cisco Data Center Network Manager
- Classifications
- CWE-184, T1565.001
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jan 20, 2021CVE publishedPublication date reported by the CVE source.
- Nov 12, 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?
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- Affected versionversion=n/a
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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