Unauthenticated service crash via undefined remote address
Published May 30, 2023 · Updated Jan 9, 2025
Denial of service in TooTallNate proxy before 2.1.1 allows remote attackers to crash the proxy via a crafted HTTP request. The onrequest handler appends socket.remoteAddress to X-Forwarded-For without verifying that the address is a string; invalid trailing request data leaves it undefined and raises a TypeError. No authentication or user interaction is required, and the terminated proxy interrupts service until an operator restarts it.
Summary
What happened
Denial of service in TooTallNate proxy before 2.1.1 allows remote attackers to crash the proxy via a crafted HTTP request. The onrequest handler appends socket.remoteAddress to X-Forwarded-For without verifying that the address is a string; invalid trailing request data leaves it undefined and raises a TypeError. No authentication or user interaction is required, and the terminated proxy interrupts service until an operator restarts it.
The record
- CVE
- CVE-2023-2968
- Published
- May 30, 2023
- Updated
- Jan 9, 2025
- Vendor
- TooTallNate
- Product
- proxy
- Classifications
- CWE-232, T1499.004
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 30, 2023CVE publishedPublication date reported by the CVE source.
- Jan 9, 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=0 <2.1.1
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
- Crafted HTTP request denial-of-service proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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