File: 2087.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 (72 lines) | stat: -rw-r--r-- 1,399 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
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
Rule:

--
Sid:
2087

--
Summary:
vulnerability in Sendmail.

--
Impact:
The remote attacker can gain access to a machine with the credentials of
the user running the Sendmail daemon, usually 'root'.

--
Detailed Information:
A vulnerability exists in the Sendmail MTA Daemon that could allow an
attacker the opportunity to gain root access.

A programming error exists such that a buffer overflow can be caused
using the header fields in an SMTP session. Using the '<' and '>'
characters in the 'from' field, an attacker can increment a counter to
the extent that the buffer exceeds it's limit.

--
Affected Systems:
All systems using Sendmail prior to version 8.12.8
	
--
Attack Scenarios:
The attacker can craft an email message that contains a "from" header
with enough sequences of "<>" to cause a counter to exceed it's maximum
size thus causing the buffer overflow.

--
Ease of Attack:
Simple

--
False Positives:
None Known

--
False Negatives:
None Known

--
Corrective Action:
All users of Sendmail should upgrade to the latest non-affected version
as soon as possible.

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

--
Additional References:

CERT:
http://www.cert.org/advisories/CA-2003-07.html
http://www.kb.cert.org/vuls/id/398025

CVE Entry
CAN-2002-1337

Sendmail:
http://www.sendmail.org/8.12.8.html

--