Stored XSS via unvalidated tcpdump entries
Published Jan 18, 2023 · Updated Aug 3, 2024
Stored XSS in Cisco Identity Services Engine 2.6, 3.0, 3.1, and 3.2 allows remote authenticated users to execute script in other users' browsers. The tcpdump feature stores entries containing attacker-supplied HTML or script without proper input validation and later serves that content through the management interface. Exploitation requires a valid authorized account with tcpdump access and interaction by another management-interface user, enabling script execution in that user's browser.
Summary
What happened
Stored XSS in Cisco Identity Services Engine 2.6, 3.0, 3.1, and 3.2 allows remote authenticated users to execute script in other users' browsers. The tcpdump feature stores entries containing attacker-supplied HTML or script without proper input validation and later serves that content through the management interface. Exploitation requires a valid authorized account with tcpdump access and interaction by another management-interface user, enabling script execution in that user's browser.
The record
- CVE
- CVE-2022-20966
- Published
- Jan 18, 2023
- Updated
- Aug 3, 2024
- Vendor
- ClamAV
- Product
- Cisco Identity Services Engine
- Classifications
- CWE-79
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jan 18, 2023CVE publishedPublication date reported by the CVE source.
- Aug 3, 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=2.6.0
- Affected versionversion=2.6.0 p1
- Affected versionversion=2.6.0 p10
- Affected versionversion=2.6.0 p11
- Affected versionversion=2.6.0 p12
- Affected versionversion=2.6.0 p2
- Affected versionversion=2.6.0 p3
- Affected versionversion=2.6.0 p5
- Affected versionversion=2.6.0 p6
- Affected versionversion=2.6.0 p7
- Affected versionversion=2.6.0 p8
- Affected versionversion=2.6.0 p9
- Affected versionversion=2.7.0
- Affected versionversion=2.7.0 p1
- Affected versionversion=2.7.0 p2
- Affected versionversion=2.7.0 p3
- Affected versionversion=2.7.0 p4
- Affected versionversion=2.7.0 p5
- Affected versionversion=2.7.0 p6
- Affected versionversion=2.7.0 p7
- Affected versionversion=3.0.0
- Affected versionversion=3.0.0 p1
- Affected versionversion=3.0.0 p2
- Affected versionversion=3.0.0 p3
- Affected versionversion=3.0.0 p4
- Affected versionversion=3.0.0 p5
- Affected versionversion=3.0.0 p6
- Affected versionversion=3.1.0
- Affected versionversion=3.1.0 p1
- Affected versionversion=3.1.0 p3
- Affected versionversion=3.1.0 p4
- Affected versionversion=3.1.0 p5
- Affected versionversion=3.2.0
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.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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