SSRF via incomplete IP address normalization
Published May 27, 2024 · Updated Feb 13, 2025
Server-side request forgery in Fedor Indutny IP 2.0.1 and earlier allows remote attackers to reach private hosts via crafted IP addresses. The isLoopback and isPrivate routines incompletely normalize shorthand, octal, and IPv4-mapped IPv6 forms, while isPublic negates their result and labels those private destinations public. Exploitation requires a consuming Node.js application to trust this classification when filtering attacker-controlled outbound request destinations, permitting requests to internal or loopback services.
Summary
What happened
Server-side request forgery in Fedor Indutny IP 2.0.1 and earlier allows remote attackers to reach private hosts via crafted IP addresses. The isLoopback and isPrivate routines incompletely normalize shorthand, octal, and IPv4-mapped IPv6 forms, while isPublic negates their result and labels those private destinations public. Exploitation requires a consuming Node.js application to trust this classification when filtering attacker-controlled outbound request destinations, permitting requests to internal or loopback services.
The record
- CVE
- CVE-2024-29415
- Published
- May 27, 2024
- Updated
- Feb 13, 2025
- Vendor
- Fedor Indutny
- Product
- IP
- Classifications
- CWE-918, CWE-941, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 27, 2024CVE publishedPublication date reported by the CVE source.
- Feb 13, 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 <2.0.1
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
- Malformed IP classification proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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