File: 1918.txt

package info (click to toggle)
snort 2.7.0-20.4
  • links: PTS
  • area: main
  • in suites: lenny
  • size: 34,512 kB
  • ctags: 18,772
  • sloc: ansic: 115,404; sh: 10,893; makefile: 1,372; perl: 487; sql: 213
file content (57 lines) | stat: -rw-r--r-- 1,142 bytes parent folder | download | duplicates (6)
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
Rule:

--
Sid:
1918

--
Summary:
This event is generated when a scan is detected. 

--
Impact:
Information gathering.

--
Detailed Information:
This event indicates that an attempt has been made to scan a host.

This may be the prelude to an attack. Scanners are used to ascertain which ports a host may be listening on, whether or not the ports are filtered by a firewall and if the host is vulnerable to a particular exploit.

--
Affected Systems:
Any host.

--
Attack Scenarios:
An attacker can determine if ports 21 and 20 are being used for FTP. Then the attacker might find out that the FTP service is vulnerable to a particular attack and is then able to compromise the host.

--
Ease of Attack:
Simple.

--
False Positives:
A scanner may be used in a security audit.

--
False Negatives:
None Known.

--
Corrective Action:
Determine whether or not the scan was legitimate then look for other events concerning the attacking IP address.

Check the host for signs of compromise.

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

--
Additional References:


--