1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67
|
Rule:
--
Sid:
1080
--
Summary:
This event is generated when an attempt is made to access the Unify eWave
ServletExec uploader servlet, which may lead to a web server compromise.
--
Impact:
Serious. Execution of arbitrary code is possible.
--
Detailed Information:
Unify eWave ServletExec is a webserver-based JSP and Java Servlet
environment available for many popular web servers (e.g., Apache, Netscape
web server, and IIS). Versions of ServletExec before 3.0E contain a
vulnerability in UploadServlet that could allow an attacker to upload
arbitrary files, including executables used to compromise the web server.
--
Affected Systems:
Unify eWave ServletExec versions before 3.0E.
--
Attack Scenarios:
Attacker sends a simple HTTP GET or POST like the following:
GET http://target/servlet/com.unify.ewave.servletexec.UploadServlet HTTP/1.0
The attacker could upload any arbitrary file onto the web server, including
executable code that can then be used to compromise the web server.
--
Ease of Attack:
Relatively simple handcrafted HTTP GET or POST.
--
False Positives:
It is possible that legitimate web administrators could use UploadServlet.
--
False Negatives:
None Known
--
Corrective Action:
Examine the packet to see if a web request was being done. Try to
determine if the request was by a legitimate web admin or not.
Determine from the web server's configuration whether it was a threat or not
(e.g., whether the web server even runs ServletExec, and if so whether
it was running a vulnerable version).
--
Contributors:
Original rule writer unknown
Original document author unkown
Sourcefire Vulnerability Research Team
Nigel Houghton <nigel.houghton@sourcefire.com>
Alex Kirk <alex.kirk@sourcefire.com>
--
Additional References:
--
|