Restricted-content disclosure via trusted forwarding headers
Published Aug 30, 2023 · Updated Oct 1, 2024
Authentication bypass in Alexander Schneider User Access Manager before 2.2.18 allows remote attackers to read restricted WordPress content. The visitor-IP resolver trusts client-controlled forwarding HTTP headers ahead of PHP's REMOTE_ADDR and uses the spoofed value in IP-based access decisions. Exploitation requires an IP-based restriction whose allowed address can be supplied through an accepted header; only content protected by that rule is exposed.
Summary
What happened
Authentication bypass in Alexander Schneider User Access Manager before 2.2.18 allows remote attackers to read restricted WordPress content. The visitor-IP resolver trusts client-controlled forwarding HTTP headers ahead of PHP's REMOTE_ADDR and uses the spoofed value in IP-based access decisions. Exploitation requires an IP-based restriction whose allowed address can be supplied through an accepted header; only content protected by that rule is exposed.
The record
- CVE
- CVE-2022-1601
- Published
- Aug 30, 2023
- Updated
- Oct 1, 2024
- Vendor
- Alexander Schneider
- Product
- User Access Manager
- Classifications
- CWE-290, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 30, 2023CVE publishedPublication date reported by the CVE source.
- Oct 1, 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=0 <2.2.18
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
- WPScan IP spoofing exploit entryproof of concept · unverified
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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