Unauthenticated administrator access via fixed debug credentials
Published Oct 11, 2023 · Updated Nov 4, 2025
Authentication bypass in Xiamen Yifan YF325 1.0_20221108 allows remote attackers to gain administrator access via an HTTP request. The httpd check_credentials function accepts the fixed ffadmin and ffadminff debug credential pair before validating the configured administrator credentials. No prior access or user interaction is required, and successful use exposes authenticated management APIs with administrator permissions.
Summary
What happened
Authentication bypass in Xiamen Yifan YF325 1.0_20221108 allows remote attackers to gain administrator access via an HTTP request. The httpd check_credentials function accepts the fixed ffadmin and ffadminff debug credential pair before validating the configured administrator credentials. No prior access or user interaction is required, and successful use exposes authenticated management APIs with administrator permissions.
The record
- CVE
- CVE-2023-32645
- Published
- Oct 11, 2023
- Updated
- Nov 4, 2025
- Vendor
- Xiamen Yifan Communication Technology Co., Ltd.
- Product
- YF325 Firmware
- Classifications
- CWE-489, T1078.001
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Oct 11, 2023CVE publishedPublication date reported by the CVE source.
- Nov 4, 2025Record 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=1.0_20221108
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.
Public exploit references
- Cisco Talos fixed-debug-credential HTTP proofproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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