Description
Belkin Bulldog Plus version 4.0.2 build 1219 contains a stack-based buffer overflow vulnerability in its web service authentication handler. When a specially crafted HTTP request is sent with an oversized Authorization header, the application fails to properly validate the input length before copying it into a fixed-size buffer, resulting in memory corruption and potential remote code execution. Exploitation requires network access and does not require prior authentication.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Belkin International | Bulldog Plus UPS Monitoring Software | ≤ 4.0.2 build 1219 | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Metasploit 1 module
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Belkin Bulldog Plus Web Service Buffer Overflow
exploit/windows/http/belkin_bulldog
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/http/belkin_bulldog.rb exploit
- https://www.exploit-db.com/exploits/8173 exploit
- https://www.fortiguard.com/encyclopedia/ips/17325/belkin-bulldog-plus-web-services-buffer-overflow third-party-advisory
- https://s3.belkin.com/support/dl/bulldogwindows.pdf product
- https://www.vulncheck.com/advisories/belkin-bulldog-plus-web-service-buffer-overflow third-party-advisory