Authenticated router crash via unbounded curTime formatting
Published May 10, 2024 · Updated Feb 13, 2025
Stack-based buffer overflow in /bin/boa on D-Link DIR-619L Rev.B 2.06B1 allows remote authenticated users to crash the router. The formTcpipSetup handler reads curTime with websGetVar and formats it into stack storage with sprintf without restricting its length. Exploitation requires adjacent-network access and a valid login; the demonstrated consequence is a router crash that interrupts service.
Summary
What happened
Stack-based buffer overflow in /bin/boa on D-Link DIR-619L Rev.B 2.06B1 allows remote authenticated users to crash the router. The formTcpipSetup handler reads curTime with websGetVar and formats it into stack storage with sprintf without restricting its length. Exploitation requires adjacent-network access and a valid login; the demonstrated consequence is a router crash that interrupts service.
The record
- CVE
- CVE-2024-33772
- Published
- May 10, 2024
- Updated
- Feb 13, 2025
- Vendor
- D-Link
- Product
- D-Link DIR-619L Firmware
- Classifications
- CWE-121, T1499
- Attack vector
- adjacent
- Privileges
- authenticated
Timeline
How it unfolded
- May 10, 2024CVE publishedPublication date reported by the CVE source.
- Feb 13, 2025Record 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=2.06b1
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
- DIR-619L formTcpipSetup curTime proof of conceptproof of concept · 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
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo