CVE-2012-0308 : Detail

CVE-2012-0308

Cross-Site Request Forgery - CSRF
A01-Broken Access Control
3.02%V3
Network
2012-08-29
08h00 +00:00
2012-12-20
09h00 +00:00
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CVE Descriptions

Cross-site request forgery (CSRF) vulnerability in Symantec Messaging Gateway (SMG) before 10.0 allows remote attackers to hijack the authentication of administrators.

CVE Informations

Related Weaknesses

CWE-ID Weakness Name Source
CWE-352 Cross-Site Request Forgery (CSRF)
The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request.

Metrics

Metrics Score Severity CVSS Vector Source
V2 6.8 AV:N/AC:M/Au:N/C:P/I:P/A:P [email protected]

EPSS

EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.

EPSS Score

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

EPSS Percentile

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.
EPSS First.org

Exploit information

Exploit Database EDB-ID : 23109

Publication date : 2012-12-02 23h00 +00:00
Author : Ben Williams
EDB Verified : No

======= Summary ======= Name: Symantec Messaging Gateway - Easy CSRF to add a backdoor-administrator (for example) Release Date: 30 November 2012 Reference: NGS00263 Discoverer: Ben Williams <[email protected]> Vendor: Symantec Vendor Reference: Systems Affected: Symantec Messaging Gateway 9.5.3-3 Risk: High Status: Published ======== TimeLine ======== Discovered: 16 April 2012 Released: 16 April 2012 Approved: 29 April 2012 Reported: 30 April 2012 Fixed: 27 August 2012 Published: 30 November 2012 =========== Description =========== I. VULNERABILITY ------------------------- Symantec Messaging Gateway 9.5.3-3 - Easy CSRF to add a backdoor-administrator (for example) II. BACKGROUND ------------------------- Symantec Messaging Gateway 9.5.3-3 is the latest version, of their Email Security Appliance III. DESCRIPTION ------------------------- It would be relatively easy for an attacker to add a backdoor-administrator to the system, by getting a logged-in adminstrator to view a webpage with a specially crafted image-tag. This is partly due to the fact that GET and POST requests are interchangeable, there is no password protection on sensitive functions, and there is not CSRF protection in the product. ================= Technical Details ================= IV. PROOF OF CONCEPT ------------------------- An attacker can create an web page with a hidden image-tag (example below) <html> A very interesting page indeed <img src="http://192.168.1.59:41080/brightmail/admin/administrator/save.do?pageReuseFor=add&id=0&userName=backdoor&passwd=muhaha3&confirmPassword=muhaha3&fullAdminRole=true&statusRole=true" height=0 width=0> </html> When a logged-in administrator views this page, a new backdoor administrator will be created in the application (as long as the username is unique). The administrator would not notice anything until they go to here: http://192.168.1.59:41080/brightmail/admin/administrator/view.do (where they would see the added administrator, but if the username is something like "system" or "filter" they may not notice this as an issue anyway) The attacker could then use this backdoor administrator to login, control and reconfigure the appliance. Many other functions can be abused in this way to arbitrarily reconfigure the appliance. =============== Fix Information =============== An updated version of the software has been released to address the vulnerability: http://www.symantec.com/security_response/securityupdates/detail.jsp?fid=security_advisory&pvid=security_advisory&year=2012&suid=20120827_00 NCC Group Research http://www.nccgroup.com/research For more information please visit <a href="http://www.mimecast.com">http://www.mimecast.com<br> This email message has been delivered safely and archived online by Mimecast. </a>

Products Mentioned

Configuraton 0

Symantec>>Messaging_gateway >> Version To (including) 9.5.4

Symantec>>Messaging_gateway >> Version 9.5

Symantec>>Messaging_gateway >> Version 9.5.1

Symantec>>Messaging_gateway >> Version 9.5.2

Symantec>>Messaging_gateway >> Version 9.5.3

Symantec>>Messaging_gateway >> Version 10.0

References

http://www.securityfocus.com/bid/55137
Tags : vdb-entry, x_refsource_BID