Ethereal SOCKS Dissector Format String Vulnerability

BID:7049

Info

Ethereal SOCKS Dissector Format String Vulnerability

Bugtraq ID: 7049
Class: Boundary Condition Error
CVE: CVE-2003-0081
Remote: Yes
Local: No
Published: Mar 08 2003 12:00AM
Updated: Jul 11 2009 08:06PM
Credit: Discovery of this vulnerability credited to Georgi Guninski.
Vulnerable: Redhat Linux Advanced Work Station 2.1
Redhat Enterprise Linux WS 2.1
Redhat Enterprise Linux ES 2.1
Redhat Enterprise Linux AS 2.1
Ethereal Group Ethereal 0.9.9
+ Mandriva Linux Mandrake 9.1 ppc
 + Mandriva Linux Mandrake 9.1
Ethereal Group Ethereal 0.9.8
+ Redhat Linux 9.0 i386
 + Redhat Linux 8.0 i386
 + Redhat Linux 8.0
+ Redhat Linux 7.3 i386
 + Redhat Linux 7.3
+ Redhat Linux 7.2 ia64
 + Redhat Linux 7.2 i386
 + Redhat Linux 7.2
+ Terra Soft Solutions Yellow Dog Linux 3.0
Ethereal Group Ethereal 0.9.7
Ethereal Group Ethereal 0.9.6
+ Conectiva Linux Enterprise Edition 1.0
Ethereal Group Ethereal 0.9.5
Ethereal Group Ethereal 0.9.4
+ 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
 Ethereal Group Ethereal 0.9.3
+ Redhat Linux 7.3 i386
 + Redhat Linux 7.3
+ Redhat Linux 7.2 i386
 + Redhat Linux 7.2 alpha
 + Redhat Linux 7.1 ia64
 + Redhat Linux 7.1 i386
 + Redhat Linux 7.1 alpha
 + Redhat Linux 7.0 sparc
 + 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
 Ethereal Group Ethereal 0.9.2
Ethereal Group Ethereal 0.9.1
- Compaq Tru64 5.0
- Debian Linux 2.2 sparc
 - Debian Linux 2.2 powerpc
 - Debian Linux 2.2 IA-32
 - Debian Linux 2.2 arm
 - Debian Linux 2.2 alpha
 - Debian Linux 2.2 68k
 - HP HP-UX 11.0
- IBM AIX 5.1
 - Linux kernel 2.4
- Microsoft Windows 2000 Professional
- Microsoft Windows 95
- Microsoft Windows 98
- Microsoft Windows 98SE
- Microsoft Windows ME
- Microsoft Windows NT Workstation 4.0
 - NetBSD NetBSD 1.5
- OpenBSD OpenSSH 3.0
- SCO Unixware 7.0
- SGI IRIX 6.0
- Sun Solaris 8_sparc
 Ethereal Group Ethereal 0.9
Ethereal Group Ethereal 0.8.18
- Redhat Linux 7.2 ia64
 - Redhat Linux 7.2 i386
 - Redhat Linux 7.2
Not Vulnerable: Ethereal Group Ethereal 0.9.10

Discussion

Ethereal SOCKS Dissector Format String Vulnerability

A format string vulnerability has been reported in some versions of the SOCKS dissector for Ethereal.

An attacker can exploit this vulnerability by connecting to a vulnerable SOCKS server and sending malicious format string specifiers to the SOCKS server. If Ethereal is being used as a security tool to monitor network packets, it is possible that sensitive memory may be corrupted.

This has been confirmed to result in a denial of service condition. Additionally, it may be possible to cause Ethereal to execute malicious attacker-supplied code.

Exploit / POC

Ethereal SOCKS Dissector Format String Vulnerability

Exploits have been provided. Further information is available in the referenced Web pages.

Solution / Fix

Ethereal SOCKS Dissector Format String Vulnerability

Solution:
Red Hat has released a security advisory (RHSA-2003:077-13) containing fixes which address this and other issues with ethereal. See referenced advisory for further details on obtaining and applying fixes.

SuSE has released a security advisory (SuSE-SA:2003:019) which contains fixes for this issue. Users are advised to upgrade as soon as possible.

Debian have released a security advisory (DSA 258-1) which contains fixes for this issue. Users are advised to upgrade as soon as possible.

Gentoo Linux has released an advisory (200303-10). Users who have installed
net-analyzer/ethereal are advised to upgrade to ethereal-0.9.10 by issuing the
following commands:

emerge sync
emerge ethereal
emerge clean

Red Hat has released a security advisory (RHSA-2003:076-01) containing fixes which address this and other issues with ethereal. users are advised to upgrade as soon as possible.

Fixes available:


Ethereal Group Ethereal 0.8.18

Ethereal Group Ethereal 0.9

Ethereal Group Ethereal 0.9.1

Ethereal Group Ethereal 0.9.2

Ethereal Group Ethereal 0.9.3

Ethereal Group Ethereal 0.9.4

Ethereal Group Ethereal 0.9.5

Ethereal Group Ethereal 0.9.6

Ethereal Group Ethereal 0.9.7

Ethereal Group Ethereal 0.9.8

Ethereal Group Ethereal 0.9.9

References

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