Unauthenticated router crash via unbounded path formatting
Published Jul 19, 2024 · Updated Aug 2, 2024
Stack overflow in Tenda AX1806 firmware 1.0.0.1 allows remote attackers to crash the router through an oversized HTTP request path. In tdhttpd, sprintf writes the unbounded request path into a fixed-size stack buffer while constructing an HTTPS URL. No authentication or user interaction is required, and the demonstrated consequence is interruption of the router service.
Summary
What happened
Stack overflow in Tenda AX1806 firmware 1.0.0.1 allows remote attackers to crash the router through an oversized HTTP request path. In tdhttpd, sprintf writes the unbounded request path into a fixed-size stack buffer while constructing an HTTPS URL. No authentication or user interaction is required, and the demonstrated consequence is interruption of the router service.
The record
- CVE
- CVE-2024-41492
- Published
- Jul 19, 2024
- Updated
- Aug 2, 2024
- Vendor
- Shenzhen Tenda Technology Co., Ltd.
- Product
- AX1806 Firmware
- Classifications
- CWE-121, T1499
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 19, 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=1.0.0.1
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.
Public exploit references
- Tenda AX1806v2.0 stack-overflow exploitfunctional · demonstrated
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Technologies
Your stack
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Your stack
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