20977 : Google Search Appliance proxystylesheet File Existence Verification
Printer | http://osvdb.org/20977 | Email This | Edit Vulnerability

Views This Week	Views All Time	Added to OSVDB	Last Modified	Modified (since 2008)	Percent Complete
8	2459	over 6 years ago	over 3 years ago	0 times	90%

Timeline

Discovery Date	Disclosure Date	Exploit Publish Date
2005-06-10	2005-11-21	2005-11-21

Time to Exploit
164 days

Description

The Google Search Appliance contains a flaw that allows a remote attacker to verify the existance of a file. The issue is due to the proxystylesheet parameter in the search request, which doesn't check for a directory traversal in the file name. This allows an attacker to prepend a ../ sequence to an absolute file path and verify its existance based on the error message returned.

Classification

Location: Remote / Network Access
Attack Type: Information Disclosure
Impact: Loss of Confidentiality
Exploit: Exploit Public
Disclosure: OSVDB Verified
OSVDB: Web Related

Technical

Replace the proxystylesheet variable in the search URL with "../../../../../../../../path/to/file". The error reply for an existing file contains "The following required pattern was not found", otherwise it contains "Unable to fetch the stylesheet for collection". A patched system returns neither error.

Solution

Upgrade to the version specified by Google advisory GA-2005-08-m, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

Products

Google, Inc.	Mini Search Appliance	Unknown or Unspecified (not affected)
Google, Inc.	Search Appliance	Unknown or Unspecified (not affected)

References

Security Tracker: 1015246
Bugtraq ID: 15509
Secunia Advisory ID: 17644
CVE ID: 2005-3755 (see also: NVD)
Metasploit ID: 20977
Related OSVDB ID: 20978 20979 20980 20981
VUPEN Advisory: ADV-2005-2500
Other Advisory URL: http://metasploit.com/research/vulns/google_proxystylesheet/
News Article: http://news.techwhack.com/2526/221129-google-fixes-security-flaws-in-google-mini/
http://www.eweek.com/article2/0,1895,1891796,00.asp
http://www.techworld.com/networking/news/index.cfm?NewsID=4840
http://www.webpronews.com/insiderreports/searchinsider/wpn-49-20051122GoogleMiniNeededBigSecurityPatch.html

Tools & Filters

	20241

Credit

H D Moore - hdmmetasploit.com - DigitalOffense

CVSSv2 Score

CVSSv2 Base Score = 5.0
Source: nvd.nist.gov | Generated: 2005-11-29 | Disagree?

Blogs

This product uses the Daylife API but is not endorsed or certified by Daylife.

This section lists the latest news and blogs found via the daylife API (and for older items, the technorati API), which mention or otherwise discuss this vulnerability.

None found at this time

Comments

Add Comment Hide Add Comment

No Comments.

The database information may change without any notice. Use of the information constitutes acceptance for use in an AS IS condition, and there are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the copyright holder or distributor (OSVDB or OSF) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.