Apache Mod_Proxy Remote Negative Content-Length Buffer Overflow Vulnerability

BID:10508

Info

Apache Mod_Proxy Remote Negative Content-Length Buffer Overflow Vulnerability

Bugtraq ID: 10508
Class: Boundary Condition Error
CVE: CVE-2004-0492
Remote: Yes
Local: No
Published: Jun 10 2004 12:00AM
Updated: Jul 12 2009 05:16AM
Credit: Discovery is credited to Georgi Guninski.
Vulnerable: Trustix Secure Linux 1.5
Sun Solaris 9_x86
Sun Solaris 9
Sun Solaris 8_x86
Sun Solaris 8_sparc
Slackware Linux 10.0
Slackware Linux 9.1
Slackware Linux 9.0
Slackware Linux 8.1
SGI ProPack 2.4
RedHat Linux 7.3
RedHat Enterprise Linux WS 2.1 IA64
RedHat Enterprise Linux WS 2.1
RedHat Enterprise Linux ES 2.1 IA64
RedHat Enterprise Linux ES 2.1
RedHat Enterprise Linux AS 2.1 IA64
RedHat Enterprise Linux AS 2.1
RedHat Advanced Workstation for the Itanium Processor 2.1 IA64
RedHat Advanced Workstation for the Itanium Processor 2.1
OpenBSD OpenBSD 3.5
OpenBSD OpenBSD 3.4
OpenBSD OpenBSD -current
IBM HTTP Server 1.3.28
IBM HTTP Server 1.3.26 .2
IBM HTTP Server 1.3.26 .1
IBM HTTP Server 1.3.26
HP Webproxy 2.1
+ HP HP-UX 11.0 4
 HP Webproxy 2.0
+ HP HP-UX 11.0 4
 HP Webproxy A.02.10
+ HP HP-UX B.11.04
 HP Webproxy A.02.00
+ HP HP-UX B.11.04
 HP VirtualVault 11.0.4
HP VirtualVault A.04.70
+ HP HP-UX B.11.04
 HP VirtualVault A.04.60
+ HP HP-UX B.11.04
 HP VirtualVault A.04.50
+ HP HP-UX B.11.04
 HP HP-UX (VVOS) 11.0 4
HP HP-UX 11.22
HP HP-UX 11.20
HP HP-UX 11.11
HP HP-UX 11.0
HP HP-UX B.11.22
HP HP-UX B.11.11
HP HP-UX B.11.00
Apache Software Foundation Apache 1.3.32
+ Gentoo Linux 1.4
+ Gentoo Linux
Apache Software Foundation Apache 1.3.31
+ OpenPKG OpenPKG Current
 Apache Software Foundation Apache 1.3.29
+ Apple Mac OS X 10.3.5
+ Apple Mac OS X 10.2.7
+ Apple Mac OS X Server 10.3.5
+ Apple Mac OS X Server 10.2.7
+ MandrakeSoft Linux Mandrake 10.0 AMD64
 + MandrakeSoft Linux Mandrake 10.0
+ OpenPKG OpenPKG 2.0
Apache Software Foundation Apache 1.3.28
+ Conectiva Linux 8.0
+ MandrakeSoft Linux Mandrake 9.2 amd64
 + MandrakeSoft Linux Mandrake 9.2
+ OpenBSD OpenBSD 3.4
 + OpenPKG OpenPKG 1.3
Apache Software Foundation Apache 1.3.27
+ HP HP-UX (VVOS) 11.0 4
 + HP VirtualVault 4.6
+ HP VirtualVault 4.5
+ HP Webproxy 2.0
+ Immunix Immunix OS 7+
 + MandrakeSoft Linux Mandrake 9.1 ppc
 + MandrakeSoft Linux Mandrake 9.1
+ OpenBSD OpenBSD 3.3
 + OpenPKG OpenPKG Current
 + RedHat Enterprise Linux AS 2.1 IA64
 + RedHat Enterprise Linux AS 2.1
 + RedHat Enterprise Linux ES 2.1 IA64
 + RedHat Enterprise Linux ES 2.1
 + RedHat Enterprise Linux WS 2.1 IA64
 + RedHat Enterprise Linux WS 2.1
 + RedHat Linux Advanced Work Station 2.1
+ SGI IRIX 6.5.19
Apache Software Foundation Apache 1.3.26
+ Conectiva Linux 8.0
+ Conectiva Linux 7.0
+ Conectiva Linux 6.0
+ Debian Linux 3.0 sparc
 + Debian Linux 3.0 s/390
 + Debian Linux 3.0 ppc
 + Debian Linux 3.0 mipsel
 + Debian Linux 3.0 mips
 + Debian Linux 3.0 m68k
 + Debian Linux 3.0 ia-64
 + Debian Linux 3.0 ia-32
 + Debian Linux 3.0 hppa
 + Debian Linux 3.0 arm
 + Debian Linux 3.0 alpha
 + MandrakeSoft Corporate Server 2.1 x86_64
 + MandrakeSoft Corporate Server 2.1
+ MandrakeSoft Linux Mandrake 9.0
+ OpenPKG OpenPKG 1.1
+ Trustix Secure Linux 1.5
+ Trustix Secure Linux 1.2
+ Trustix Secure Linux 1.1
Apache Software Foundation Apache 1.3.25
Apache Software Foundation Apache 1.3.24
+ OpenBSD OpenBSD 3.1
 + Oracle Oracle HTTP Server 9.2 .0
 + Oracle Oracle HTTP Server 9.0.1
+ Oracle Oracle9i Application Server 9.0.2
+ Oracle Oracle9i Application Server 1.0.2 .2
 + Oracle Oracle9i Application Server 1.0.2 .1s
 + Oracle Oracle9i Application Server 1.0.2
+ Slackware Linux 8.1
+ Unisphere Networks SDX-300 2.0.3
Apache Software Foundation Apache 1.3.23
- IBM AIX 4.3
+ MandrakeSoft Linux Mandrake 8.2 ppc
 + MandrakeSoft Linux Mandrake 8.2
+ RedHat Linux 7.3 i386
 + RedHat Linux 7.3
+ S.u.S.E. Linux 8.0 i386
 + S.u.S.E. Linux 8.0
+ Trustix Secure Linux 1.5
+ Trustix Secure Linux 1.2
+ Trustix Secure Linux 1.1
Apache Software Foundation Apache 1.3.22
+ Caldera OpenLinux Server 3.1.1
+ Caldera OpenLinux Server 3.1
+ Caldera OpenLinux Workstation 3.1.1
+ Caldera OpenLinux Workstation 3.1
+ Conectiva Linux 8.0
+ Conectiva Linux 7.0
+ Conectiva Linux 6.0
+ MandrakeSoft Corporate Server 1.0.1
+ MandrakeSoft Linux Mandrake 8.1 ia64
 + MandrakeSoft Linux Mandrake 8.1
+ MandrakeSoft Linux Mandrake 8.0 ppc
 + MandrakeSoft Linux Mandrake 8.0
+ MandrakeSoft Linux Mandrake 7.2
+ OpenPKG OpenPKG 1.0
+ RedHat Linux 7.2 ia64
 + RedHat Linux 7.2 i386
 + RedHat Linux 7.1 ia64
 + RedHat Linux 7.1 i386
 + RedHat Linux 7.1 alpha
 + RedHat Linux 7.0 i386
 + RedHat Linux 7.0 alpha
 + RedHat Linux 6.2 sparc
 + RedHat Linux 6.2 i386
 + RedHat Linux 6.2 alpha
 Apache Software Foundation Apache 1.3.20
- HP HP-UX 11.22
- HP HP-UX 11.20
+ MandrakeSoft Single Network Firewall 7.2
+ S.u.S.E. Linux 7.3 sparc
 + S.u.S.E. Linux 7.3 ppc
 + S.u.S.E. Linux 7.3 i386
 + S.u.S.E. Linux 7.3
+ SGI IRIX 6.5.18
+ SGI IRIX 6.5.17
+ SGI IRIX 6.5.16
+ SGI IRIX 6.5.15
+ SGI IRIX 6.5.14 m
 + SGI IRIX 6.5.14 f
 + SGI IRIX 6.5.14
+ SGI IRIX 6.5.13 m
 + SGI IRIX 6.5.13 f
 + SGI IRIX 6.5.13
+ SGI IRIX 6.5.12 m
 + SGI IRIX 6.5.12 f
 + SGI IRIX 6.5.12
+ Slackware Linux 8.0
+ Sun Cobalt Control Station 4100CS
+ Sun Cobalt RaQ 550
+ Sun Solaris 9_x86 Update 2
 + Sun Solaris 9_x86
 + Sun Solaris 9
 + Sun SunOS 5.9 _x86
 + Sun SunOS 5.9
Apache Software Foundation Apache 1.3.19
- Apple Mac OS X 10.0.3
- Caldera OpenLinux 2.4
+ Debian Linux 2.3
- Digital (Compaq) TRU64/DIGITAL UNIX 5.0
- Digital (Compaq) TRU64/DIGITAL UNIX 4.0 g
 - Digital (Compaq) TRU64/DIGITAL UNIX 4.0 f
 + EnGarde Secure Linux 1.0.1
- FreeBSD FreeBSD 4.2
- FreeBSD FreeBSD 3.5.1
- HP HP-UX 11.11
- HP HP-UX 11.0 4
 - HP HP-UX 11.0
- HP HP-UX 10.20
+ HP Secure OS software for Linux 1.0
- HP VirtualVault 4.5
+ MandrakeSoft Linux Mandrake 8.1
- MandrakeSoft Linux Mandrake 8.0
- MandrakeSoft Linux Mandrake 7.2
- MandrakeSoft Linux Mandrake 7.1
- NetBSD NetBSD 1.5.1
- NetBSD NetBSD 1.5
+ OpenBSD OpenBSD 2.9
- OpenBSD OpenBSD 2.8
+ OpenBSD OpenBSD 3.0
 - RedHat Linux 7.1
- RedHat Linux 7.0
- RedHat Linux 6.2
+ S.u.S.E. Linux 7.2 i386
 + S.u.S.E. Linux 7.2
+ S.u.S.E. Linux 7.1 x86
 + S.u.S.E. Linux 7.1 sparc
 + S.u.S.E. Linux 7.1 ppc
 + S.u.S.E. Linux 7.1 alpha
 + S.u.S.E. Linux 7.1
+ S.u.S.E. Linux 7.0 sparc
 + S.u.S.E. Linux 7.0 ppc
 + S.u.S.E. Linux 7.0 i386
 + S.u.S.E. Linux 7.0 alpha
 + S.u.S.E. Linux 7.0
+ S.u.S.E. Linux 6.4 ppc
 + S.u.S.E. Linux 6.4 i386
 + S.u.S.E. Linux 6.4 alpha
 + S.u.S.E. Linux 6.4
- SCO eDesktop 2.4
- SCO eServer 2.3.1
- SGI IRIX 6.5.9
- SGI IRIX 6.5.8
- Sun Solaris 8_sparc
 - Sun Solaris 7.0
 Apache Software Foundation Apache 1.3.18
Apache Software Foundation Apache 1.3.17
+ MandrakeSoft Corporate Server 1.0.1
+ MandrakeSoft Linux Mandrake 8.0 ppc
 + MandrakeSoft Linux Mandrake 8.0
+ OpenBSD OpenBSD 2.8
+ S.u.S.E. Linux 7.1
Apache Software Foundation Apache 1.3.14
+ EnGarde Secure Linux 1.0.1
+ MandrakeSoft Linux Mandrake 7.2
+ MandrakeSoft Linux Mandrake 7.1
- MandrakeSoft Single Network Firewall 7.2
+ SGI IRIX 6.5.11
+ SGI IRIX 6.5.10
+ SGI IRIX 6.5.9
+ SGI IRIX 6.5.8
+ SGI IRIX 6.5.7
+ SGI IRIX 6.5.6
+ SGI IRIX 6.5.5
+ SGI IRIX 6.5.4
+ SGI IRIX 6.5.3
+ SGI IRIX 6.5.2
+ SGI IRIX 6.5.1
+ SGI IRIX 6.5
Apache Software Foundation Apache 1.3.12
+ NetScreen NetScreen-Global PRO Express Policy Manager Server
+ NetScreen NetScreen-Global PRO Policy Manager Server
+ OpenBSD OpenBSD 2.8
+ RedHat Linux 7.0 i386
 + RedHat Linux 7.0 alpha
 + RedHat Linux 6.2 sparc
 + RedHat Linux 6.2 i386
 + RedHat Linux 6.2 alpha
 + S.u.S.E. Linux 7.0 sparc
 + S.u.S.E. Linux 7.0
+ Sun Cobalt ManageRaQ v2 3599BD
+ Sun Cobalt Qube3 4000WG
+ Sun Cobalt RaQ XTR 3500R
+ Sun Cobalt RaQ4 3001R
Apache Software Foundation Apache 1.3.11
Apache Software Foundation Apache 1.3.9
+ Debian Linux 2.2 sparc
 + Debian Linux 2.2 powerpc
 + Debian Linux 2.2 arm
 + Debian Linux 2.2 alpha
 + Debian Linux 2.2 68k
 + Debian Linux 2.2
+ NetScreen NetScreen-Global PRO Express Policy Manager Server
+ NetScreen NetScreen-Global PRO Policy Manager Server
+ Sun Solaris 8_x86
 + Sun Solaris 8_sparc
 + Sun SunOS 5.8 _x86
 + Sun SunOS 5.8
Apache Software Foundation Apache 1.3.7 -dev
Apache Software Foundation Apache 1.3.6
+ Sun Cobalt ManageRaQ3 3000R-mr
+ Sun Cobalt RaQ3 3000R
+ Sun Cobalt Velociraptor
Apache Software Foundation Apache 1.3.4
+ BSDI BSD/OS 4.0
Apache Software Foundation Apache 1.3.3
+ RedHat Linux 5.2 sparc
 + RedHat Linux 5.2 i386
 + RedHat Linux 5.2 alpha
 Apache Software Foundation Apache 1.3.1
Apache Software Foundation Apache 1.3
+ Apple Mac OS X 10.3.2
+ Apple Mac OS X 10.3.1
+ Apple Mac OS X 10.3
+ Apple Mac OS X 10.2.8
+ Apple Mac OS X 10.2.7
+ Apple Mac OS X 10.2.6
+ Apple Mac OS X 10.2.5
+ Apple Mac OS X 10.2.4
+ Apple Mac OS X 10.2.3
+ Apple Mac OS X 10.2.2
+ Apple Mac OS X 10.2.1
+ Apple Mac OS X 10.2
+ Apple Mac OS X 10.1.5
+ Apple Mac OS X 10.1.4
+ Apple Mac OS X 10.1.3
+ Apple Mac OS X 10.1.2
+ Apple Mac OS X 10.1.1
+ Apple Mac OS X 10.1
+ Apple Mac OS X Server 10.3.2
+ Apple Mac OS X Server 10.3.1
+ Apple Mac OS X Server 10.3
+ Apple Mac OS X Server 10.2.8
+ Apple Mac OS X Server 10.2.7
+ Apple Mac OS X Server 10.2.6
+ Apple Mac OS X Server 10.2.5
+ Apple Mac OS X Server 10.2.4
+ Apple Mac OS X Server 10.2.3
+ Apple Mac OS X Server 10.2.2
+ Apple Mac OS X Server 10.2.1
+ Apple Mac OS X Server 10.2
+ Apple Mac OS X Server 10.1.5
+ Apple Mac OS X Server 10.1.4
+ Apple Mac OS X Server 10.1.3
+ Apple Mac OS X Server 10.1.2
+ Apple Mac OS X Server 10.1.1
+ Apple Mac OS X Server 10.1
- Microsoft Windows 2000 Professional
- Microsoft Windows NT 4.0
Not Vulnerable: IBM HTTP Server 2.0.47
IBM HTTP Server 2.0.42 .2
IBM HTTP Server 2.0.42
IBM HTTP Server 1.3.19 .5
IBM HTTP Server 1.3.19 .4
IBM HTTP Server 1.3.19 .3
IBM HTTP Server 1.3.19 .2
IBM HTTP Server 1.3.19 .1
IBM HTTP Server 1.3.19
- HP HP-UX 11.0
- IBM AIX 4.3.3
- Microsoft Windows NT 4.0 SP6a
 - Microsoft Windows NT 4.0 SP5
 - Microsoft Windows NT 4.0 SP4
 - RedHat Linux 7.1
- S.u.S.E. Linux 7.1
- Sun Solaris 7.0
 - Sun Solaris 2.6
 Apache Software Foundation Apache 1.3.33
+ Apple Mac OS X 10.3.6
+ Apple Mac OS X 10.2.8
+ Apple Mac OS X Server 10.3.6
+ Apple Mac OS X Server 10.2.8
+ Debian Linux 3.1 sparc
 + Debian Linux 3.1 s/390
 + Debian Linux 3.1 ppc
 + Debian Linux 3.1 mipsel
 + Debian Linux 3.1 mips
 + Debian Linux 3.1 m68k
 + Debian Linux 3.1 ia-64
 + Debian Linux 3.1 ia-32
 + Debian Linux 3.1 hppa
 + Debian Linux 3.1 arm
 + Debian Linux 3.1 amd64
 + Debian Linux 3.1 alpha
 + Debian Linux 3.1

Discussion

Apache Mod_Proxy Remote Negative Content-Length Buffer Overflow Vulnerability

A remote buffer overflow vulnerability exists in Apache mod_proxy.

The source of this issue is that a negative user-specified length value may be used in a memory copy operation, allowing for corruption of memory. This may triggered if a remote server returns a negative Content-Length: HTTP header field to be passed through the proxy.

Exploitation will likely result in a denial of service, though there is an unconfirmed potential for execution of arbitrary code on some platforms (such as BSD implementations). Versions that have the optional AP_ENABLE_EXCEPTION_HOOK define enabled may also be exploitable on some platforms.

This issue affects Apache servers 1.3.26 through 1.3.32 that have mod_proxy enabled and configured. Apache 2.0.x releases are not affected by this issue.

Exploit / POC

Apache Mod_Proxy Remote Negative Content-Length Buffer Overflow Vulnerability

A denial of service proof-of-concept script has been published at the following location:

http://www.guninski.com/modproxy1.html

Solution / Fix

Apache Mod_Proxy Remote Negative Content-Length Buffer Overflow Vulnerability

Solution:
Updates are available. Please see the references for more information.


OpenBSD OpenBSD 3.5

OpenBSD OpenBSD 3.4

Sun Solaris 9_x86

Apache Software Foundation Apache 1.3

Apache Software Foundation Apache 1.3.1

Apache Software Foundation Apache 1.3.14

Apache Software Foundation Apache 1.3.17

Apache Software Foundation Apache 1.3.22

Apache Software Foundation Apache 1.3.23

Apache Software Foundation Apache 1.3.25

IBM HTTP Server 1.3.26 .1

Apache Software Foundation Apache 1.3.26

IBM HTTP Server 1.3.26

IBM HTTP Server 1.3.26 .2

Apache Software Foundation Apache 1.3.27

Apache Software Foundation Apache 1.3.28

IBM HTTP Server 1.3.28

Apache Software Foundation Apache 1.3.29

Apache Software Foundation Apache 1.3.3

Apache Software Foundation Apache 1.3.31

Apache Software Foundation Apache 1.3.4

Apache Software Foundation Apache 1.3.7 -dev

SGI ProPack 2.4

References

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