Description
Green Dam Youth Escort version 3.17 is vulnerable to a stack-based buffer overflow when processing overly long URLs. The flaw resides in the URL filtering component, which fails to properly validate input length before copying user-supplied data into a fixed-size buffer. A remote attacker can exploit this vulnerability by enticing a user to visit a specially crafted webpage containing a long URL, resulting in arbitrary code execution.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Zhengzhou Jinhui Computer System Engineering Co. Ltd. ; Beijing Dazheng Human Language Technology Academy | Green Dam Youth Escort | 3.17 | — |
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.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Metasploit 1 module
-
Green Dam URL Processing Buffer Overflow
exploit/windows/browser/greendam_url
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- https://web.archive.org/web/20110426190759/http://www.cse.umich.edu/~jhalderm/pub/gd/ technical-description
- https://en.wikipedia.org/wiki/Green_Dam_Youth_Escort product
- https://www.exploit-db.com/exploits/8969 exploit
- https://www.exploit-db.com/exploits/8938 exploit
- https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/browser/greendam_url.rb exploit
- https://www.vulncheck.com/advisories/green-dam-url-processing-buffer-overflow third-party-advisory