BugTraq
MVSA-10-001 - Google Message Security SaaS - SQL Injection vulnerabilities Sep 15 2010 08:22PM
marian ventuneac gmail com


Security Advisory: MVSA-10-001

Vendor: Google

Service: Google Message Security SaaS (powered by Postini)

- Message Center II

Vulnerabilities: SQL Injection

Risk: High

Attack Vector: From Remote

Authentication: Required

Reference: http://www.ventuneac.net/security-advisories/MVSA-10-001

http://secureappdev.blogspot.com/2010/09/testing-google-message-security
-saas.html

Description

Message Center II service (build 6_24) was found vulnerable to SQL Injection attacks. When exploited by an attacker, the identified vulnerability could lead to Information Disclosure (map database structure, extract data from available tables), Denial of Service (consume server resources by injecting SQL heavy queries), etc.

An authenticated attacker without administrative privileges can inject arbitrary code into the SQL query built to generate the list of quarantined/deleted e-mails. This can be achieved by manipulating the sort_direction parameter of /junk_quarantine/process and /trash/process resources.

Test case: sort_direction='

POST https://mc-s200.postini.com/app/msgctr/junk_quarantine/process HTTP/1.1

Host: mc-s200.postini.com

...

Content-Type: multipart/form-data; boundary=---------------------------26418279386900

Content-Length: 1351

-----------------------------26418279386900

Content-Disposition: form-data; name="_submitted_junk_quarantine_form"

1

...

-----------------------------26418279386900

Content-Disposition: form-data; name="range_menu"

1-14

-----------------------------26418279386900

Content-Disposition: form-data; name="sort_menu"

from_asc

-----------------------------26418279386900

Content-Disposition: form-data; name="sort_direction"

desc'

-----------------------------26418279386900

...

Due to the unsafe inclusion of user provided content into the dynamically built SQ statement, the system returns an error including details on the database engine used, error type, middleware settings, and SQL error stack trace. Such information allowed devising further SQL Injection test cases.

Affected Versions

Message Center II service of Google Message Security SaaS build 6_24 (January 2010).

Mitigation

Google fixed the issue in Message Center II build 6_25 (February 2010).

Disclosure Timeline

2010, January 29: Vulnerability discovered and documented

2010, January 30: First notification sent to Google

2010, February 1: Second notification sent to Google

2010, February 2: Third notification sent to Google

2010, February 3: Google acknowledges the vulnerability

2010, February 22: Fix deployed in production (build 6_25)

2010, September 15: MVSA-10-001 advisory published

Credits

Dr. Marian Ventuneac

http://ventuneac.net

[ reply ]


 

Privacy Statement
Copyright 2010, SecurityFocus