Authenticated redirection via stored cross-site scripting
Published Nov 18, 2021 · Updated Sep 16, 2024
Stored cross-site scripting in AVEVA PI Web API 2019 SP1 and earlier allows remote authenticated users to redirect victims to malicious sites. The built-in documentation component fails to neutralize attacker-controlled PI Server content before returning HTML, enabling injected redirect content. Exploitation requires PI Server write access and victim interaction with the affected endpoint; the resulting deception can disclose sensitive information or present false information.
Summary
What happened
Stored cross-site scripting in AVEVA PI Web API 2019 SP1 and earlier allows remote authenticated users to redirect victims to malicious sites. The built-in documentation component fails to neutralize attacker-controlled PI Server content before returning HTML, enabling injected redirect content. Exploitation requires PI Server write access and victim interaction with the affected endpoint; the resulting deception can disclose sensitive information or present false information.
The record
- CVE
- CVE-2021-43549
- Published
- Nov 18, 2021
- Updated
- Sep 16, 2024
- Vendor
- AVEVA
- Product
- AVEVA PI Web API
- Classifications
- CWE-79, T1204
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Nov 18, 2021CVE publishedPublication date reported by the CVE source.
- Sep 16, 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=All versions <=2019 SPI
What conditions does exploitation require?
What is affected?
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
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Technologies
Your stack
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Your stack
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