Wu-Ftpd Debug Mode Client Hostname Format String Vulnerability

BID:2296

Info

Wu-Ftpd Debug Mode Client Hostname Format String Vulnerability

Bugtraq ID: 2296
Class: Input Validation Error
CVE:
Remote: Yes
Local: No
Published: Jan 23 2001 12:00AM
Updated: Jan 23 2001 12:00AM
Credit: Reportedly discovered by the Wu-ftpd team.
Vulnerable: Washington University wu-ftpd 2.6.1
+ Caldera OpenLinux 2.3
+ Caldera OpenLinux Server 3.1
+ Cobalt Qube 1.0
- FreeBSD FreeBSD 5.0 alpha
- FreeBSD FreeBSD 5.0
- FreeBSD FreeBSD 4.4
- FreeBSD FreeBSD 4.3 -STABLE
- FreeBSD FreeBSD 4.3 -RELEASE
- FreeBSD FreeBSD 4.3
+ MandrakeSoft Corporate Server 1.0.1
+ Mandriva Linux Mandrake 8.1
+ Mandriva Linux Mandrake 8.0 ppc
+ Mandriva Linux Mandrake 8.0
+ Mandriva Linux Mandrake 7.2
+ Mandriva Linux Mandrake 7.1
+ Mandriva Linux Mandrake 7.0
+ Mandriva Linux Mandrake 6.1
+ Mandriva Linux Mandrake 6.0
+ Redhat Linux 7.2 noarch
+ Redhat Linux 7.2 ia64
+ Redhat Linux 7.2 i686
+ Redhat Linux 7.2 i586
+ Redhat Linux 7.2 i386
+ Redhat Linux 7.2 athlon
+ Redhat Linux 7.2 alpha
+ Redhat Linux 7.1 noarch
+ Redhat Linux 7.1 ia64
+ Redhat Linux 7.1 i686
+ Redhat Linux 7.1 i586
+ 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
+ SCO eDesktop 2.4
+ SCO eServer 2.3.1
+ SCO Open Server 5.0.6 a
+ SCO Open Server 5.0.6
+ SCO Open Server 5.0.5
+ SCO Open Server 5.0.4
+ SCO Open Server 5.0.3
+ SCO Open Server 5.0.2
+ SCO Open Server 5.0.1
+ SCO Open Server 5.0
- Slackware Linux 8.0
- Slackware Linux 7.1
- Slackware Linux 7.0
- SuSE Linux 7.3
- SuSE Linux 7.2
- SuSE Linux 7.1 x86
- SuSE Linux 7.1 sparc
- SuSE Linux 7.1 ppc
- SuSE Linux 7.1 alpha
- SuSE Linux 7.1
- SuSE Linux 7.0 sparc
- SuSE Linux 7.0 ppc
- SuSE Linux 7.0 alpha
- SuSE Linux 7.0
+ Turbolinux Turbolinux 6.0.5
+ Turbolinux Turbolinux 6.0.4
+ Turbolinux Turbolinux 6.0.3
+ Turbolinux Turbolinux 6.0.2
+ Turbolinux Turbolinux 6.0.1
+ Turbolinux Turbolinux 6.0
+ Turbolinux Turbolinux Workstation 6.1
+ Wirex Immunix OS 7.0 -Beta
+ Wirex Immunix OS 7.0
+ Wirex Immunix OS 7+
Washington University wu-ftpd 2.6 .0
+ Cobalt Qube 1.0
+ 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
- FreeBSD FreeBSD 4.4
- FreeBSD FreeBSD 4.3 -STABLE
- FreeBSD FreeBSD 4.3 -RELEASE
- FreeBSD FreeBSD 4.3
+ HP HP-UX 11.11
+ HP HP-UX 11.0
+ Redhat Linux 6.2 sparc
+ Redhat Linux 6.2 i386
+ Redhat Linux 6.2 alpha
+ Redhat Linux 6.1 sparc
+ Redhat Linux 6.1 i386
+ Redhat Linux 6.1 alpha
+ Redhat Linux 6.0 sparc
+ Redhat Linux 6.0 alpha
+ Redhat Linux 6.0
+ Redhat Linux 5.2 sparc
+ Redhat Linux 5.2 i386
+ Redhat Linux 5.2 alpha
+ SuSE Linux 7.3 sparc
+ SuSE Linux 7.3 ppc
+ SuSE Linux 7.3 i386
+ SuSE Linux 7.2 i386
+ SuSE Linux 7.1 x86
+ SuSE Linux 7.1 sparc
+ SuSE Linux 7.1 ppc
+ SuSE Linux 7.1 alpha
+ SuSE Linux 7.0 sparc
+ SuSE Linux 7.0 ppc
+ SuSE Linux 7.0 i386
+ SuSE Linux 7.0 alpha
+ SuSE Linux 6.4 ppc
+ SuSE Linux 6.4 alpha
+ SuSE Linux 6.4
+ SuSE Linux 6.3 ppc
+ SuSE Linux 6.3 alpha
+ SuSE Linux 6.3
+ SuSE Linux 6.2
+ SuSE Linux 6.1 alpha
+ SuSE Linux 6.1
+ Turbolinux Turbolinux 4.0
+ Wirex Immunix OS 6.2
Washington University wu-ftpd 2.5 .0
+ Caldera OpenLinux 2.4
+ Caldera OpenLinux Desktop 2.3
+ Redhat Linux 6.0 sparc
+ Redhat Linux 6.0 alpha
+ Redhat Linux 6.0
+ SCO eDesktop 2.4
+ SCO eServer 2.3.1
+ SCO eServer 2.3
Washington University wu-ftpd 2.4.2 academ[BETA1-15]
+ Caldera OpenLinux Standard 1.2
Washington University wu-ftpd 2.4.2 academ[BETA-18]
+ Redhat Linux 5.2 i386
Washington University wu-ftpd 2.4.2 VR17
Washington University wu-ftpd 2.4.2 VR16
Washington University wu-ftpd 2.4.2 (beta 18) VR9
Washington University wu-ftpd 2.4.2 (beta 18) VR8
Washington University wu-ftpd 2.4.2 (beta 18) VR7
Washington University wu-ftpd 2.4.2 (beta 18) VR6
Washington University wu-ftpd 2.4.2 (beta 18) VR5
Washington University wu-ftpd 2.4.2 (beta 18) VR4
Washington University wu-ftpd 2.4.2 (beta 18) VR15
Washington University wu-ftpd 2.4.2 (beta 18) VR14
Washington University wu-ftpd 2.4.2 (beta 18) VR13
Washington University wu-ftpd 2.4.2 (beta 18) VR12
Washington University wu-ftpd 2.4.2 (beta 18) VR11
Washington University wu-ftpd 2.4.2 (beta 18) VR10
Washington University wu-ftpd 2.4.1
Not Vulnerable: Washington University wu-ftpd 2.6.2
+ Compaq Tru64 5.1 b PK2 (BL22)
+ Compaq Tru64 5.1 b PK1 (BL1)
+ Compaq Tru64 5.1 b
+ Compaq Tru64 5.1 a PK5 (BL23)
+ Compaq Tru64 5.1 a PK4 (BL21)
+ Compaq Tru64 5.1 a PK3 (BL3)
+ Compaq Tru64 5.1 a PK2 (BL2)
+ Compaq Tru64 5.1 a PK1 (BL1)
+ Compaq Tru64 5.1 a
+ Compaq Tru64 5.1 PK6 (BL20)
+ Compaq Tru64 5.1 PK5 (BL19)
+ Compaq Tru64 5.1 PK4 (BL18)
+ Compaq Tru64 5.1 PK3 (BL17)
+ Compaq Tru64 5.1
+ Compaq Tru64 5.0 f
+ Compaq Tru64 5.0 a PK3 (BL17)
+ Compaq Tru64 5.0 a
+ Compaq Tru64 5.0 PK4 (BL18)
+ Compaq Tru64 5.0 PK4 (BL17)
+ Compaq Tru64 5.0
+ Compaq Tru64 4.0 g PK3 (BL17)
+ Compaq Tru64 4.0 g
+ Compaq Tru64 4.0 f PK7 (BL18)
+ Compaq Tru64 4.0 f PK6 (BL17)
+ Compaq Tru64 4.0 f
+ Compaq Tru64 4.0 e
+ Compaq Tru64 4.0 d PK9 (BL17)
+ Compaq Tru64 4.0 d
+ Compaq Tru64 4.0 b
+ 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
+ Debian Linux 3.0
+ Mandriva Linux Mandrake 8.2 ppc
+ Mandriva Linux Mandrake 8.2
+ SCO Open Server 5.0.7
+ SCO Open Server 5.0.6 a
+ SCO Open Server 5.0.6
+ Sun Linux 5.0.7
+ Turbolinux Turbolinux Advanced Server 6.0
+ Turbolinux Turbolinux Server 6.1
+ Turbolinux Turbolinux Workstation 6.0

Discussion

Wu-Ftpd Debug Mode Client Hostname Format String Vulnerability

Wu-ftpd is a widely used unix ftp server. It contains a format string vulnerability that may be exploitable under certain (perhaps 'extreme') circumstances.

When running in debug mode, Wu-ftpd logs user activity to syslog in an insecure manner. An attacker with control over the server's hostname resolving facility could exploit this vulnerability to get root access remotely on the victim host.
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