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
68
69
|
Rule:
--
Sid:
1645
--
Summary:
This event is generated when an attempt is made to access /testcgi on a
web server. This may indicate an attempt to exploit a cross-site
scripting vulnerability that affects Ceilidh.
--
Impact:
Arbitrary code execution, possible session hijack.
--
Detailed Information:
This event indicates that an attempt has been made to exploit a
cross-site scripting vulnerability in Ceilidh, web-based discussion
software released by Lilikoi Software, Inc. An attacker can craft a URL
that passes malicious code to testcgi.exe. If a legitimate user
activates the URL, malicious code may be executed on the client
computer.
--
Affected Systems:
All web servers that Ceilidh 2.6 or 2.7 are vulnerable.
All clients that access Ceilidh 2.6 or 2.7 are vulnerable.
--
Attack Scenarios:
An attacker may craft a script that obtains the user's session cookie,
thereby allowing the attacker to pose as the user for the duration of
the session.
--
Ease of Attack:
Simple. A proof of concept exists.
--
False Positives:
If a legitimate remote user accesses testcgi.exe, this rule may generate
an event.
--
False Negatives:
None known.
--
Corrective Action:
Upgrade to the latest version of the software.
--
Contributors:
Sourcefire Research Team
Brian Caswell <bmc@sourcefire.com>
Sourcefire Technical Publications Team
--
Additional References:
Bugtraq
http://www.securityfocus.com/bid/7214
Nessus
http://cgi.nessus.org/plugins/dump.php3?id=11610
--
|
