Unauthenticated file-policy bypass via archive misclassification
Published May 22, 2024 · Updated Nov 7, 2024
Access-control bypass in Cisco Firepower Threat Defense allows remote attackers to pass blocked encrypted archives through affected devices. The file policy's inspection logic misclassifies a specific class of crafted encrypted archives and fails to drop them. Exposure requires an FTD file policy configured to block encrypted archives; exploitation permits transit of a file that the policy should drop.
Summary
What happened
Access-control bypass in Cisco Firepower Threat Defense allows remote attackers to pass blocked encrypted archives through affected devices. The file policy's inspection logic misclassifies a specific class of crafted encrypted archives and fails to drop them. Exposure requires an FTD file policy configured to block encrypted archives; exploitation permits transit of a file that the policy should drop.
The record
- CVE
- CVE-2024-20261
- Published
- May 22, 2024
- Updated
- Nov 7, 2024
- Vendor
- ClamAV
- Product
- Cisco Firepower Management Center
- Classifications
- CWE-284, T1027.013
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 22, 2024CVE publishedPublication date reported by the CVE source.
- Nov 7, 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=6.2.3
- Affected versionversion=6.2.3.1
- Affected versionversion=6.2.3.10
- Affected versionversion=6.2.3.11
- Affected versionversion=6.2.3.12
- Affected versionversion=6.2.3.13
- Affected versionversion=6.2.3.14
- Affected versionversion=6.2.3.15
- Affected versionversion=6.2.3.16
- Affected versionversion=6.2.3.17
- Affected versionversion=6.2.3.18
- Affected versionversion=6.2.3.2
- Affected versionversion=6.2.3.3
- Affected versionversion=6.2.3.4
- Affected versionversion=6.2.3.5
- Affected versionversion=6.2.3.6
- Affected versionversion=6.2.3.7
- Affected versionversion=6.2.3.8
- Affected versionversion=6.2.3.9
- Affected versionversion=6.4.0
- Affected versionversion=6.4.0.1
- Affected versionversion=6.4.0.10
- Affected versionversion=6.4.0.11
- Affected versionversion=6.4.0.12
- Affected versionversion=6.4.0.13
- Affected versionversion=6.4.0.14
- Affected versionversion=6.4.0.15
- Affected versionversion=6.4.0.16
- Affected versionversion=6.4.0.2
- Affected versionversion=6.4.0.3
- Affected versionversion=6.4.0.4
- Affected versionversion=6.4.0.5
- Affected versionversion=6.4.0.6
- Affected versionversion=6.4.0.7
- Affected versionversion=6.4.0.8
- Affected versionversion=6.4.0.9
- Affected versionversion=6.6.0
- Affected versionversion=6.6.0.1
- Affected versionversion=6.6.1
- Affected versionversion=6.6.3
- Affected versionversion=6.6.4
- Affected versionversion=6.6.5
- Affected versionversion=6.6.5.1
- Affected versionversion=6.6.5.2
- Affected versionversion=6.6.7
- Affected versionversion=6.6.7.1
- Affected versionversion=6.6.7.2
- Affected versionversion=6.7.0
- Affected versionversion=6.7.0.1
- Affected versionversion=6.7.0.2
- Affected versionversion=6.7.0.3
- Affected versionversion=7.0.0
- Affected versionversion=7.0.0.1
- Affected versionversion=7.0.1
- Affected versionversion=7.0.1.1
- Affected versionversion=7.0.2
- Affected versionversion=7.0.2.1
- Affected versionversion=7.0.3
- Affected versionversion=7.0.4
- Affected versionversion=7.0.5
- Affected versionversion=7.1.0
- Affected versionversion=7.1.0.1
- Affected versionversion=7.1.0.3
- Affected versionversion=7.2.0
- Affected versionversion=7.2.0.1
- Affected versionversion=7.2.1
- Affected versionversion=7.2.2
- Affected versionversion=7.2.3
- Affected versionversion=7.2.4
- Affected versionversion=7.3.0
- Affected versionversion=7.3.1
- Affected versionversion=7.3.1.1
- Affected versionversion=7.3.1.2
What conditions does exploitation require?
What is affected?
Published CVSS scores
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.
Public exploit references
No public exploit references are available in this record.
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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