Traffic hijacking via forwarded forged ICMP redirects
Published Jun 17, 2024 · Updated Nov 4, 2024
Improper source verification in TP-Link TL-7DR5130 1.0.23 allows remote authenticated users to redirect client traffic via forged ICMP. The router's WLAN forwarding path relays forged ICMP redirects between associated stations instead of blocking them, causing a redirect-accepting Linux client to replace its next hop with the attacker. Exploitation requires association with the same WLAN and a client that accepts redirects; the demonstrated result exposes outbound traffic, while full bidirectional interception requires additional techniques.
Summary
What happened
Improper source verification in TP-Link TL-7DR5130 1.0.23 allows remote authenticated users to redirect client traffic via forged ICMP. The router's WLAN forwarding path relays forged ICMP redirects between associated stations instead of blocking them, causing a redirect-accepting Linux client to replace its next hop with the attacker. Exploitation requires association with the same WLAN and a client that accepts redirects; the demonstrated result exposes outbound traffic, while full bidirectional interception requires additional techniques.
The record
- CVE
- CVE-2024-37661
- Published
- Jun 17, 2024
- Updated
- Nov 4, 2024
- Vendor
- TP-Link
- Product
- TL-7DR5130
- Classifications
- CWE-940, T1557
- Attack vector
- adjacent
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 17, 2024CVE publishedPublication date reported by the CVE source.
- Nov 4, 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=1.0.23
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
- forge_redirect.py ICMP redirect proof of conceptfunctional · demonstrated
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Technologies
Your stack
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Your stack
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