Authentication bypass via unchecked TLS header read
Published May 3, 2024 · Updated Aug 2, 2024
Stack-based buffer overflow in NETGEAR RAX30 1.0.9.90_3 allows network-adjacent attackers to bypass authentication via SOAP. In soap_serverd's TLS flow on port 5043, an unchecked socket read accepts oversized headers, enabling stack data to overwrite the stored source IP with 127.0.0.1. Access to the router's Wi-Fi or Ethernet network is required; the bypass exposes authenticated SOAP commands and can disclose the router configuration.
Summary
What happened
Stack-based buffer overflow in NETGEAR RAX30 1.0.9.90_3 allows network-adjacent attackers to bypass authentication via SOAP. In soap_serverd's TLS flow on port 5043, an unchecked socket read accepts oversized headers, enabling stack data to overwrite the stored source IP with 127.0.0.1. Access to the router's Wi-Fi or Ethernet network is required; the bypass exposes authenticated SOAP commands and can disclose the router configuration.
The record
- CVE
- CVE-2023-27369
- Published
- May 3, 2024
- Updated
- Aug 2, 2024
- Vendor
- NETGEAR
- Product
- RAX30
- Classifications
- CWE-787, CWE-121, T1210
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 3, 2024CVE publishedPublication date reported by the CVE source.
- Aug 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=-
- Affected versionversion=1.0.9.90_3
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
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Weakness, pattern, technique
Public exploit references
- Team82 RAX30 five-vulnerability exploit chainproof of concept · demonstrated
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Reported exploitation
Technologies
Your stack
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Your stack
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