Unauthenticated system access via permissive login cookie
Published Apr 18, 2024 · Updated Aug 1, 2024
Authentication bypass in Electrolink transmitters allows remote attackers to gain full system access through a crafted login cookie. The login check accepts any attacker-supplied cookie value except the literal value 'NO', treating it as an authenticated session. No credentials or user interaction are required; published assessments identify unauthorized access but differ on whether confidentiality or integrity is the primary impact.
Summary
What happened
Authentication bypass in Electrolink transmitters allows remote attackers to gain full system access through a crafted login cookie. The login check accepts any attacker-supplied cookie value except the literal value 'NO', treating it as an authenticated session. No credentials or user interaction are required; published assessments identify unauthorized access but differ on whether confidentiality or integrity is the primary impact.
The record
- CVE
- CVE-2024-3741
- Published
- Apr 18, 2024
- Updated
- Aug 1, 2024
- Vendor
- Electrolink
- Product
- Digital FM Transmitter
- Classifications
- CWE-302, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 18, 2024CVE publishedPublication date reported by the CVE source.
- Aug 1, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=15W
- Affected versionversion=15W <=40kW
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
- Electrolink FM/DAB/TV Transmitter Login Cookie Authentication Bypassfunctional · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
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