Browser script execution via reflected portal input
Published Jul 19, 2021 · Updated Aug 4, 2024
Reflected XSS in the Aruba Instant captive portal allows remote attackers to execute script in another portal user’s browser. Aruba identifies the captive portal as the affected locus but does not disclose which request value is reflected or how output encoding fails. No authentication is required, but exploitation requires a victim to open attacker-controlled portal input; script runs only in the affected interface context.
Summary
What happened
Reflected XSS in the Aruba Instant captive portal allows remote attackers to execute script in another portal user’s browser. Aruba identifies the captive portal as the affected locus but does not disclose which request value is reflected or how output encoding fails. No authentication is required, but exploitation requires a victim to open attacker-controlled portal input; script runs only in the affected interface context.
The record
- CVE
- CVE-2021-34617
- Published
- Jul 19, 2021
- Updated
- Aug 4, 2024
- Vendor
- Hewlett Packard Enterprise (HPE)
- Product
- Aruba Instant
- Classifications
- CWE-79, T1189
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 19, 2021CVE publishedPublication date reported by the CVE source.
- 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=Aruba Instant 6.4.x: 6.4.4.8-4.2.4.13 and below
- Affected versionversion=Aruba Instant 6.5.x: 6.5.4.13 and below
- Affected versionversion=Aruba Instant 8.3.x: 8.3.0.7 and below
- Affected versionversion=Aruba Instant 8.4.x: 8.4.0.5 and below
- Affected versionversion=Aruba Instant 8.5.x: 8.5.0.0 and below
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.
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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