Authenticated server-side requests via unrestricted favicon fetching
Published Nov 29, 2024 · Updated Dec 2, 2024
Server-side request forgery in LinkStack 2.7.9 through 4.7.7 allows remote authenticated users to trigger server-side HTTP requests. The favicon Blade component follows the custom-link URL, extracts its icon href, and downloads that resource without restricting its destination or file type. An authenticated user who can add a custom link and enable its website icon can place attacker-hosted PHP in a web-accessible path and request it for code execution.
Summary
What happened
Server-side request forgery in LinkStack 2.7.9 through 4.7.7 allows remote authenticated users to trigger server-side HTTP requests. The favicon Blade component follows the custom-link URL, extracts its icon href, and downloads that resource without restricting its destination or file type. An authenticated user who can add a custom link and enable its website icon can place attacker-hosted PHP in a web-accessible path and request it for code execution.
The record
- CVE
- CVE-2024-35451
- Published
- Nov 29, 2024
- Updated
- Dec 2, 2024
- Vendor
- LinkStack
- Product
- LinkStack
- Classifications
- CWE-918, T1105
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Nov 29, 2024CVE publishedPublication date reported by the CVE source.
- Dec 2, 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=2.7.9 <=4.7.7
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
- CVE-2024-35451 From Authenticated SSRF to Remote Code Executionproof of concept · demonstrated
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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