CVE-2010-20109: Path Traversal

Description

Barracuda products, confirmed in Spam & Virus Firewall, SSL VPN, and Web Application Firewall versions prior to October 2010, contain a path traversal vulnerability in the view_help.cgi endpoint. The locale parameter fails to properly sanitize user input, allowing attackers to inject traversal sequences and null-byte terminators to access arbitrary files on the underlying system. By exploiting this flaw, unauthenticated remote attackers can retrieve sensitive configuration files such as /mail/snapshot/config.snapshot, potentially exposing credentials, internal settings, and other critical data.

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Weakness Type (CWE)

CWE-22 Path Traversal

References

Other References

https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/auxiliary/scanner/http/barracuda_directory_traversal.rb https://web.archive.org/web/20101004131244/http://secunia.com/advisories/41609/ https://www.exploit-db.com/exploits/15130 https://www.vulncheck.com/advisories/barracuda-multiple-products-locale-path-traversal

Frequently Asked Questions

What is CVE-2010-20109? +

Barracuda products, confirmed in Spam & Virus Firewall, SSL VPN, and Web Application Firewall versions prior to October 2010, contain a path traversal vulnerability in the view_help.cgi endpoint. The locale parameter fails to properly sanitize user input, allowing attackers to inject traversal sequences and null-byte terminators to access arbitrary files on the underlying system. By exploiting this flaw, unauthenticated remote attackers can retrieve sensitive configuration files such as /mail/snapshot/config.snapshot, potentially exposing credentials, internal settings, and other critical data.

How do I check if I'm vulnerable to CVE-2010-20109? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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