File: 2127.txt

package info (click to toggle)
snort 2.9.2.2-3
  • links: PTS, VCS
  • area: main
  • in suites: wheezy
  • size: 53,752 kB
  • sloc: ansic: 214,625; sh: 13,872; makefile: 2,574; yacc: 505; perl: 496; lex: 260; sql: 213; sed: 14
file content (72 lines) | stat: -rw-r--r-- 1,617 bytes parent folder | download | duplicates (8)
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
70
71
72
Rule:

--
Sid:
2127

--
Summary:
This event is generated when an attempt is made to access ikonboard.cgi
on a web server. This may indicate an attempt to exploit an arbitrary 
code execution vulnerability that affects Ikonboard web-based bulletin 
board software.

--
Impact:
Arbitrary code execution.

--
Detailed Information:
This event indicates that an attempt has been made to exploit an 
arbitrary code execution vulnerability in Ikonboard web-based bulletin 
board software. An attacker can bypass user input validation by 
inserting illegal characters into the "lang" value of a user cookie, 
which then allows the attacker to pass arbitrary Perl code to the web 
server.

--
Affected Systems:
Any web server running Ikonboard bulletin board software.

--
Attack Scenarios:
An attacker can provide a crafted cookie to the web server running 
Ikonboard. The web server will then attempt to execute the arbitrary 
Perl commands embedded in the cookie.

--
Ease of Attack:
Simple. A proof of concept exists.

--
False Positives:
If a legitimate remote user accesses ikonboard.cgi, this rule may 
generate an event.

--
False Negatives:
None known.

--
Corrective Action:
An unsupported and unofficial patch is available at http://www.securityfocus.com/bid/7361/solution/.

Check the host for signs of compromise.

--
Contributors:
Sourcefire Research Team
Brian Caswell <bmc@sourcefire.com>
Nigel Houghton <nigel.houghton@sourcefire.com>
Sourcefire Technical Publications Team

--
Additional References:

Bugtraq
http://www.securityfocus.com/bid/7361

Nessus
http://cgi.nessus.org/plugins/dump.php3?id=11605

--