File: 3151.txt

package info (click to toggle)
snort 2.9.7.0-5
  • links: PTS, VCS
  • area: main
  • in suites: buster, sid, stretch
  • size: 55,000 kB
  • ctags: 38,464
  • sloc: ansic: 266,667; sh: 12,508; makefile: 2,908; yacc: 497; perl: 496; lex: 261; sed: 14
file content (67 lines) | stat: -rw-r--r-- 1,402 bytes parent folder | download | duplicates (4)
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:
3151

-- 
Summary: 
This event is generated when an attempt is made to access the host
filestem via fingerd.

-- 
Impact: 
Information gathering.

--
Detailed Information:
This event is generated when a specific attack against a vulnerable
version of the finger daemon is detected. 

The Finger daemon is used to provide information about users on a UNIX
system. A certain version of fingerd shipped with one release of FreeBSD
4.1.1 contained an added feature that allows a remote user to request
some files via the use of finger. This event indicates that such a
request has been made.

The feature also allowed any file or directory structure on the host
readable by the "nobody" user to also be accessed, leading to
unauthorized information disclosure.

--
Affected Systems:
	FreeBSD 4.1.1 Release

--
Attack Scenarios:  
An attacker can use finger to read a directory structure or file by
making a request via finger.

-- 
Ease of Attack: 
Simple, no exploit software is required, just a specially formatted
finger query.

-- 
False Positives: 
None Known

--
False Negatives: 
None Known

-- 
Corrective Action: 
Disable the finger daemon or limit the addresses that can access the
service via a firewall or TCP wrappers.

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

-- 
Additional References:

--