User redirection via unvalidated Host header
Published Jan 22, 2023 · Updated Apr 2, 2025
Host header injection in Plesk Obsidian 18.0.49 and earlier allows remote attackers to redirect login requests to attacker-controlled sites. The login endpoint uses the HTTP Host header as the redirect authority without restricting it, producing an attacker-domain login_up.php location. User interaction is required to affect a victim; Plesk disputes the issue as intended behavior and reports that cache controls prevent poisoning.
Summary
What happened
Host header injection in Plesk Obsidian 18.0.49 and earlier allows remote attackers to redirect login requests to attacker-controlled sites. The login endpoint uses the HTTP Host header as the redirect authority without restricting it, producing an attacker-domain login_up.php location. User interaction is required to affect a victim; Plesk disputes the issue as intended behavior and reports that cache controls prevent poisoning.
The record
- CVE
- CVE-2023-24044
- Published
- Jan 22, 2023
- Updated
- Apr 2, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-601
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jan 22, 2023CVE publishedPublication date reported by the CVE source.
- Apr 2, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What is affected?
Affected products and versions are unavailable in this record.
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
- Plesk login Host-header redirect proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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