Remote service crash via duplicate Content-Length headers
Published Oct 23, 2024 · Updated Oct 23, 2024
Null pointer dereference in Tenda router firmware allows remote attackers to crash the service through malformed HTTP headers. In websReadEvent, duplicate Content-Length headers reset the body length while a query remains set, leading strlen to dereference a null text pointer. Exploitation requires network reachability to the management HTTP service and interrupts availability without a documented data-access or modification impact.
Summary
What happened
Null pointer dereference in Tenda router firmware allows remote attackers to crash the service through malformed HTTP headers. In websReadEvent, duplicate Content-Length headers reset the body length while a query remains set, leading strlen to dereference a null text pointer. Exploitation requires network reachability to the management HTTP service and interrupts availability without a documented data-access or modification impact.
The record
- CVE
- CVE-2024-10280
- Published
- Oct 23, 2024
- Updated
- Oct 23, 2024
- Vendor
- Shenzhen Tenda Technology Co., Ltd.
- Product
- AC7
- Classifications
- CWE-476, T1499
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Oct 23, 2024CVE publishedPublication date reported by the CVE source.
- Oct 23, 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?
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- Affected versionversion=20241022
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
- websReadEvent denial-of-service proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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